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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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1cce91dfc8
138833 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
K. Y. Srinivasan
|
213ff44ae4 |
x86/hyper-V: Allocate the IDT entry early in boot
Allocate the hypervisor callback IDT entry early in the boot sequence. The previous code would allocate the entry as part of registering the handler when the vmbus driver loaded, and this caused a problem for the IDT cleanup that Thomas is working on for v4.15. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: apw@canonical.com Cc: devel@linuxdriverproject.org Cc: gregkh@linuxfoundation.org Cc: jasowang@redhat.com Cc: olaf@aepfle.de Link: http://lkml.kernel.org/r/20170908231557.2419-1-kys@exchange.microsoft.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Juergen Gross
|
87930019c7 |
x86/paravirt: Remove no longer used paravirt functions
With removal of lguest some of the paravirt functions are no longer needed: ->read_cr4() ->store_idt() ->set_pmd_at() ->set_pud_at() ->pte_update() Remove them. Signed-off-by: Juergen Gross <jgross@suse.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: akataria@vmware.com Cc: boris.ostrovsky@oracle.com Cc: chrisw@sous-sol.org Cc: jeremy@goop.org Cc: rusty@rustcorp.com.au Cc: virtualization@lists.linux-foundation.org Cc: xen-devel@lists.xenproject.org Link: http://lkml.kernel.org/r/20170904102527.25409-1-jgross@suse.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Andy Lutomirski
|
c7ad5ad297 |
x86/mm/64: Initialize CR4.PCIDE early
cpu_init() is weird: it's called rather late (after early
identification and after most MMU state is initialized) on the boot
CPU but is called extremely early (before identification) on secondary
CPUs. It's called just late enough on the boot CPU that its CR4 value
isn't propagated to mmu_cr4_features.
Even if we put CR4.PCIDE into mmu_cr4_features, we'd hit two
problems. First, we'd crash in the trampoline code. That's
fixable, and I tried that. It turns out that mmu_cr4_features is
totally ignored by secondary_start_64(), though, so even with the
trampoline code fixed, it wouldn't help.
This means that we don't currently have CR4.PCIDE reliably initialized
before we start playing with cpu_tlbstate. This is very fragile and
tends to cause boot failures if I make even small changes to the TLB
handling code.
Make it more robust: initialize CR4.PCIDE earlier on the boot CPU
and propagate it to secondary CPUs in start_secondary().
( Yes, this is ugly. I think we should have improved mmu_cr4_features
to actually control CR4 during secondary bootup, but that would be
fairly intrusive at this stage. )
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reported-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Tested-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Cc: Borislav Petkov <bpetkov@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Fixes:
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Andy Lutomirski
|
f34902c5c6 |
x86/hibernate/64: Mask off CR3's PCID bits in the saved CR3
Jiri reported a resume-from-hibernation failure triggered by PCID.
The root cause appears to be rather odd. The hibernation asm
restores a CR3 value that comes from the image header. If the image
kernel has PCID on, it's entirely reasonable for this CR3 value to
have one of the low 12 bits set. The restore code restores it with
CR4.PCIDE=0, which means that those low 12 bits are accepted by the
CPU but are either ignored or interpreted as a caching mode. This
is odd, but still works. We blow up later when the image kernel
restores CR4, though, since changing CR4.PCIDE with CR3[11:0] != 0
is illegal. Boom!
FWIW, it's entirely unclear to me what's supposed to happen if a PAE
kernel restores a non-PAE image or vice versa. Ditto for LA57.
Reported-by: Jiri Kosina <jikos@kernel.org>
Tested-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bpetkov@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes:
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Andy Lutomirski
|
a376e7f99b |
x86/mm: Get rid of VM_BUG_ON in switch_tlb_irqs_off()
If we hit the VM_BUG_ON(), we're detecting a genuinely bad situation, but we're very unlikely to get a useful call trace. Make it a warning instead. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bpetkov@suse.de> Cc: Jiri Kosina <jikos@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/3b4e06bbb382ca54a93218407c93925ff5871546.1504847163.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Linus Torvalds
|
52269718dc |
dma-mapping updates for 4.14:
- removal of the old dma_alloc_noncoherent interface
- remove unused flags to dma_declare_coherent_memory
- restrict OF DMA configuration to specific physical busses
- use the iommu mailing list for dma-mapping questions and
patches
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Merge tag 'dma-mapping-4.14' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- removal of the old dma_alloc_noncoherent interface
- remove unused flags to dma_declare_coherent_memory
- restrict OF DMA configuration to specific physical busses
- use the iommu mailing list for dma-mapping questions and patches
* tag 'dma-mapping-4.14' of git://git.infradead.org/users/hch/dma-mapping:
dma-coherent: fix dma_declare_coherent_memory() logic error
ARM: imx: mx31moboard: Remove unused 'dma' variable
dma-coherent: remove an unused variable
MAINTAINERS: use the iommu list for the dma-mapping subsystem
dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flags
dma-coherent: remove the DMA_MEMORY_INCLUDES_CHILDREN flag
of: restrict DMA configuration
dma-mapping: remove dma_alloc_noncoherent and dma_free_noncoherent
i825xx: switch to switch to dma_alloc_attrs
au1000_eth: switch to dma_alloc_attrs
sgiseeq: switch to dma_alloc_attrs
dma-mapping: reduce dma_mapping_error inline bloat
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Linus Torvalds
|
680352bda5 |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar: "Two fixes: dead code removal, plus a SME memory encryption fix on 32-bit kernels that crashed Xen guests" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Remove unused and undefined __generic_processor_info() declaration x86/mm: Make the SME mask a u64 |
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Linus Torvalds
|
8fac2f96ab |
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
"Low priority fixes and updates for ARM:
- add some missing includes
- efficiency improvements in system call entry code when tracing is
enabled
- ensure ARMv6+ is always built as EABI
- export save_stack_trace_tsk()
- fix fatal signal handling during mm fault
- build translation table base address register from scratch
- appropriately align the .data section to a word boundary where we
rely on that data being word aligned"
* 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8691/1: Export save_stack_trace_tsk()
ARM: 8692/1: mm: abort uaccess retries upon fatal signal
ARM: 8690/1: lpae: build TTB control register value from scratch in v7_ttb_setup
ARM: align .data section
ARM: always enable AEABI for ARMv6+
ARM: avoid saving and restoring registers unnecessarily
ARM: move PC value into r9
ARM: obtain thread info structure later
ARM: use aliases for registers in entry-common
ARM: 8689/1: scu: add missing errno include
ARM: 8688/1: pm: add missing types include
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Linus Torvalds
|
260d16580d |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Martin Schwidefsky:
"The second patch set for the 4.14 merge window:
- Convert the dasd device driver to the blk-mq interface.
- Provide three zcrypt interfaces for vfio_ap. These will be required
for KVM guest access to the crypto cards attached via the AP bus.
- A couple of memory management bug fixes."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/dasd: blk-mq conversion
s390/mm: use a single lock for the fields in mm_context_t
s390/mm: fix race on mm->context.flush_mm
s390/mm: fix local TLB flushing vs. detach of an mm address space
s390/zcrypt: externalize AP queue interrupt control
s390/zcrypt: externalize AP config info query
s390/zcrypt: externalize test AP queue
s390/mm: use VM_BUG_ON in crst_table_[upgrade|downgrade]
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Paul Mackerras
|
67f8a8c115 |
KVM: PPC: Book3S HV: Fix bug causing host SLB to be restored incorrectly
Aneesh Kumar reported seeing host crashes when running recent kernels on POWER8. The symptom was an oops like this: Unable to handle kernel paging request for data at address 0xf00000000786c620 Faulting instruction address: 0xc00000000030e1e4 Oops: Kernel access of bad area, sig: 11 [#1] LE SMP NR_CPUS=2048 NUMA PowerNV Modules linked in: powernv_op_panel CPU: 24 PID: 6663 Comm: qemu-system-ppc Tainted: G W 4.13.0-rc7-43932-gfc36c59 #2 task: c000000fdeadfe80 task.stack: c000000fdeb68000 NIP: c00000000030e1e4 LR: c00000000030de6c CTR: c000000000103620 REGS: c000000fdeb6b450 TRAP: 0300 Tainted: G W (4.13.0-rc7-43932-gfc36c59) MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 24044428 XER: 20000000 CFAR: c00000000030e134 DAR: f00000000786c620 DSISR: 40000000 SOFTE: 0 GPR00: 0000000000000000 c000000fdeb6b6d0 c0000000010bd000 000000000000e1b0 GPR04: c00000000115e168 c000001fffa6e4b0 c00000000115d000 c000001e1b180386 GPR08: f000000000000000 c000000f9a8913e0 f00000000786c600 00007fff587d0000 GPR12: c000000fdeb68000 c00000000fb0f000 0000000000000001 00007fff587cffff GPR16: 0000000000000000 c000000000000000 00000000003fffff c000000fdebfe1f8 GPR20: 0000000000000004 c000000fdeb6b8a8 0000000000000001 0008000000000040 GPR24: 07000000000000c0 00007fff587cffff c000000fdec20bf8 00007fff587d0000 GPR28: c000000fdeca9ac0 00007fff587d0000 00007fff587c0000 00007fff587d0000 NIP [c00000000030e1e4] __get_user_pages_fast+0x434/0x1070 LR [c00000000030de6c] __get_user_pages_fast+0xbc/0x1070 Call Trace: [c000000fdeb6b6d0] [c00000000139dab8] lock_classes+0x0/0x35fe50 (unreliable) [c000000fdeb6b7e0] [c00000000030ef38] get_user_pages_fast+0xf8/0x120 [c000000fdeb6b830] [c000000000112318] kvmppc_book3s_hv_page_fault+0x308/0xf30 [c000000fdeb6b960] [c00000000010e10c] kvmppc_vcpu_run_hv+0xfdc/0x1f00 [c000000fdeb6bb20] [c0000000000e915c] kvmppc_vcpu_run+0x2c/0x40 [c000000fdeb6bb40] [c0000000000e5650] kvm_arch_vcpu_ioctl_run+0x110/0x300 [c000000fdeb6bbe0] [c0000000000d6468] kvm_vcpu_ioctl+0x528/0x900 [c000000fdeb6bd40] [c0000000003bc04c] do_vfs_ioctl+0xcc/0x950 [c000000fdeb6bde0] [c0000000003bc930] SyS_ioctl+0x60/0x100 [c000000fdeb6be30] [c00000000000b96c] system_call+0x58/0x6c Instruction dump: 7ca81a14 2fa50000 41de0010 7cc8182a 68c60002 78c6ffe2 0b060000 3cc2000a 794a3664 390610d8 e9080000 7d485214 <e90a0020> 7d435378 790507e1 408202f0 ---[ end trace fad4a342d0414aa2 ]--- It turns out that what has happened is that the SLB entry for the vmmemap region hasn't been reloaded on exit from a guest, and it has the wrong page size. Then, when the host next accesses the vmemmap region, it gets a page fault. Commit |
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Paul Mackerras
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cf5f6f3125 |
KVM: PPC: Book3S HV: Hold kvm->lock around call to kvmppc_update_lpcr
Commit |
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Benjamin Herrenschmidt
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d222af0723 |
KVM: PPC: Book3S HV: Don't access XIVE PIPR register using byte accesses
The XIVE interrupt controller on POWER9 machines doesn't support byte
accesses to any register in the thread management area other than the
CPPR (current processor priority register). In particular, when
reading the PIPR (pending interrupt priority register), we need to
do a 32-bit or 64-bit load.
Cc: stable@vger.kernel.org # v4.13
Fixes:
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Linus Torvalds
|
dd198ce714 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull namespace updates from Eric Biederman:
"Life has been busy and I have not gotten half as much done this round
as I would have liked. I delayed it so that a minor conflict
resolution with the mips tree could spend a little time in linux-next
before I sent this pull request.
This includes two long delayed user namespace changes from Kirill
Tkhai. It also includes a very useful change from Serge Hallyn that
allows the security capability attribute to be used inside of user
namespaces. The practical effect of this is people can now untar
tarballs and install rpms in user namespaces. It had been suggested to
generalize this and encode some of the namespace information
information in the xattr name. Upon close inspection that makes the
things that should be hard easy and the things that should be easy
more expensive.
Then there is my bugfix/cleanup for signal injection that removes the
magic encoding of the siginfo union member from the kernel internal
si_code. The mips folks reported the case where I had used FPE_FIXME
me is impossible so I have remove FPE_FIXME from mips, while at the
same time including a return statement in that case to keep gcc from
complaining about unitialized variables.
I almost finished the work to get make copy_siginfo_to_user a trivial
copy to user. The code is available at:
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git neuter-copy_siginfo_to_user-v3
But I did not have time/energy to get the code posted and reviewed
before the merge window opened.
I was able to see that the security excuse for just copying fields
that we know are initialized doesn't work in practice there are buggy
initializations that don't initialize the proper fields in siginfo. So
we still sometimes copy unitialized data to userspace"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
Introduce v3 namespaced file capabilities
mips/signal: In force_fcr31_sig return in the impossible case
signal: Remove kernel interal si_code magic
fcntl: Don't use ambiguous SIG_POLL si_codes
prctl: Allow local CAP_SYS_ADMIN changing exe_file
security: Use user_namespace::level to avoid redundant iterations in cap_capable()
userns,pidns: Verify the userns for new pid namespaces
signal/testing: Don't look for __SI_FAULT in userspace
signal/mips: Document a conflict with SI_USER with SIGFPE
signal/sparc: Document a conflict with SI_USER with SIGFPE
signal/ia64: Document a conflict with SI_USER with SIGFPE
signal/alpha: Document a conflict with SI_USER for SIGTRAP
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Linus Torvalds
|
89fd915c40 |
libnvdimm for 4.14
* Media error handling support in the Block Translation Table (BTT)
driver is reworked to address sleeping-while-atomic locking and
memory-allocation-context conflicts.
* The dax_device lookup overhead for xfs and ext4 is moved out of the
iomap hot-path to a mount-time lookup.
* A new 'ecc_unit_size' sysfs attribute is added to advertise the
read-modify-write boundary property of a persistent memory range.
* Preparatory fix-ups for arm and powerpc pmem support are included
along with other miscellaneous fixes.
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Merge tag 'libnvdimm-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm from Dan Williams:
"A rework of media error handling in the BTT driver and other updates.
It has appeared in a few -next releases and collected some late-
breaking build-error and warning fixups as a result.
Summary:
- Media error handling support in the Block Translation Table (BTT)
driver is reworked to address sleeping-while-atomic locking and
memory-allocation-context conflicts.
- The dax_device lookup overhead for xfs and ext4 is moved out of the
iomap hot-path to a mount-time lookup.
- A new 'ecc_unit_size' sysfs attribute is added to advertise the
read-modify-write boundary property of a persistent memory range.
- Preparatory fix-ups for arm and powerpc pmem support are included
along with other miscellaneous fixes"
* tag 'libnvdimm-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (26 commits)
libnvdimm, btt: fix format string warnings
libnvdimm, btt: clean up warning and error messages
ext4: fix null pointer dereference on sbi
libnvdimm, nfit: move the check on nd_reserved2 to the endpoint
dax: fix FS_DAX=n BLOCK=y compilation
libnvdimm: fix integer overflow static analysis warning
libnvdimm, nd_blk: remove mmio_flush_range()
libnvdimm, btt: rework error clearing
libnvdimm: fix potential deadlock while clearing errors
libnvdimm, btt: cache sector_size in arena_info
libnvdimm, btt: ensure that flags were also unchanged during a map_read
libnvdimm, btt: refactor map entry operations with macros
libnvdimm, btt: fix a missed NVDIMM_IO_ATOMIC case in the write path
libnvdimm, nfit: export an 'ecc_unit_size' sysfs attribute
ext4: perform dax_device lookup at mount
ext2: perform dax_device lookup at mount
xfs: perform dax_device lookup at mount
dax: introduce a fs_dax_get_by_bdev() helper
libnvdimm, btt: check memory allocation failure
libnvdimm, label: fix index block size calculation
...
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Dou Liyang
|
e2329b4252 |
x86/cpu: Remove unused and undefined __generic_processor_info() declaration
The following revert:
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Linus Torvalds
|
64414e5f98 |
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu updates from Greg Ungerer: "Only two changes. One removes unused code, the other makes local clock code arguments consistent with generic clock code" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68knommu: remove dead code m68k: allow NULL clock for clk_get_rate |
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Linus Torvalds
|
e90937e756 |
ARM: arm64: Devicetree updates for v4.14
As usual, device tree updates is the bulk of our material in this merge
window. This time around, 559 patches affecting both 32- and 64-bit
platforms.
Changes are too many to list individually, but some of the larger ones:
New platform/SoC support:
- Automotive:
+ Renesas R-Car D3 (R8A77995)
+ TI DT76x
+ MediaTek mt2712e
- Communication-oriented:
+ Qualcomm IPQ8074
+ Broadcom Stingray
+ Marvell Armada 8080
- Set top box:
+ Uniphier PXs3
Besides some vendor reference boards for the SoC above, there are also several
new boards/machines:
- TI AM335x Moxa UC-8100-ME-T open platform
- TI AM57xx Beaglebone X15 Rev C
- Microchip/Atmel sama5d27 SoM1 EK
- Broadcom Raspberry Pi Zero W
- Gemini-based D-Link DIR-685 router
- Freescale i.MX6:
+ Toradex Apalis module + Apalis and Ixora carrier boards
+ Engicam GEAM6UL Starter Kit
- Freescale i.MX53-based Beckhoff CX9020 Embedded PC
- Mediatek mt7623-based BananaPi R2
- Several Allwinner-based single-board computers:
+ Cubietruck plus
+ Bananapi M3, M2M and M64
+ NanoPi A64
+ A64-OLinuXino
+ Pine64
- Rockchip RK3328 Pine64/Rock64 board support
- Rockchip RK3399 boards:
+ RK3399 Sapphire module on Excavator carrier (RK3399 reference design)
+ Theobroma Systems RK3399-Q7 SoM
- ZTE ZX296718 PCBOX Board
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Merge tag 'armsoc-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM/arm64 Devicetree updates from Olof Johansson:
"As usual, device tree updates is the bulk of our material in this
merge window. This time around, 559 patches affecting both 32- and
64-bit platforms.
Changes are too many to list individually, but some of the larger
ones:
New platform/SoC support:
- Automotive:
+ Renesas R-Car D3 (R8A77995)
+ TI DT76x
+ MediaTek mt2712e
- Communication-oriented:
+ Qualcomm IPQ8074
+ Broadcom Stingray
+ Marvell Armada 8080
- Set top box:
+ Uniphier PXs3
Besides some vendor reference boards for the SoC above, there are also
several new boards/machines:
- TI AM335x Moxa UC-8100-ME-T open platform
- TI AM57xx Beaglebone X15 Rev C
- Microchip/Atmel sama5d27 SoM1 EK
- Broadcom Raspberry Pi Zero W
- Gemini-based D-Link DIR-685 router
- Freescale i.MX6:
+ Toradex Apalis module + Apalis and Ixora carrier boards
+ Engicam GEAM6UL Starter Kit
- Freescale i.MX53-based Beckhoff CX9020 Embedded PC
- Mediatek mt7623-based BananaPi R2
- Several Allwinner-based single-board computers:
+ Cubietruck plus
+ Bananapi M3, M2M and M64
+ NanoPi A64
+ A64-OLinuXino
+ Pine64
- Rockchip RK3328 Pine64/Rock64 board support
- Rockchip RK3399 boards:
+ RK3399 Sapphire module on Excavator carrier (RK3399 reference design)
+ Theobroma Systems RK3399-Q7 SoM
- ZTE ZX296718 PCBOX Board"
* tag 'armsoc-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (559 commits)
ARM: dts: at91: at91sam9g45: add AC97
arm64: dts: marvell: mcbin: enable more networking ports
arm64: dts: marvell: add a reference to the sysctrl syscon in the ppv2 node
arm64: dts: marvell: add TX interrupts for PPv2.2
arm64: dts: uniphier: add PXs3 SoC support
ARM: dts: uniphier: add pinctrl groups of ethernet phy mode
ARM: dts: uniphier: fix size of sdctrl nodes
ARM: dts: uniphier: add AIDET nodes
arm64: dts: uniphier: fix size of sdctrl node
arm64: dts: uniphier: add AIDET nodes
Revert "ARM: dts: sun8i: h3: Enable dwmac-sun8i on the Beelink X2"
arm64: dts: uniphier: add reset controller node of analog amplifier
arm64: dts: marvell: add Device Tree files for Armada-8KP
arm64: dts: rockchip: add Haikou baseboard with RK3399-Q7 SoM
arm64: dts: rockchip: add RK3399-Q7 (Puma) SoM
dt-bindings: add rk3399-q7 SoM
ARM: dts: rockchip: enable usb for rv1108-evb
ARM: dts: rockchip: add usb nodes for rv1108 SoCs
dt-bindings: update grf-binding for rv1108 SoCs
ARM: dts: aspeed-g4: fix AHB window size of the SMC controllers
...
|
||
|
Linus Torvalds
|
ae46654bcf |
ARM: SoC driver updates for v4.14
This branch contains platform-related driver updates for ARM and ARM64.
Among them:
- Reset driver updates:
+ New API for dealing with arrays of resets
+ Make unimplemented {de,}assert return success on shared resets
+ MSDKv1 driver
+ Removal of obsolete Gemini reset driver
+ Misc updates for sunxi and Uniphier
- SoC drivers:
+ Platform SoC driver registration on Tegra
+ Shuffle of Qualcomm drivers into a submenu
+ Allwinner A64 support for SRAM
+ Renesas R-Car R3 support
+ Power domains for Rockchip RK3366
- Misc updates and smaller fixes for TEE and memory driver subsystems
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"This branch contains platform-related driver updates for ARM and ARM64.
Among them:
- Reset driver updates:
+ New API for dealing with arrays of resets
+ Make unimplemented {de,}assert return success on shared resets
+ MSDKv1 driver
+ Removal of obsolete Gemini reset driver
+ Misc updates for sunxi and Uniphier
- SoC drivers:
+ Platform SoC driver registration on Tegra
+ Shuffle of Qualcomm drivers into a submenu
+ Allwinner A64 support for SRAM
+ Renesas R-Car R3 support
+ Power domains for Rockchip RK3366
- Misc updates and smaller fixes for TEE and memory driver
subsystems"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits)
firmware: arm_scpi: fix endianness of dev_id in struct dev_pstate_set
soc/tegra: fuse: Add missing semi-colon
soc/tegra: Restrict SoC device registration to Tegra
drivers: soc: sunxi: add support for A64 and its SRAM C
drivers: soc: sunxi: add support for remapping func value to reg value
drivers: soc: sunxi: fix error processing on base address when claiming
dt-bindings: add binding for Allwinner A64 SRAM controller and SRAM C
bus: sunxi-rsb: Enable by default for ARM64
soc/tegra: Register SoC device
firmware: tegra: set drvdata earlier
memory: Convert to using %pOF instead of full_name
soc: Convert to using %pOF instead of full_name
bus: Convert to using %pOF instead of full_name
firmware: Convert to using %pOF instead of full_name
soc: mediatek: add SCPSYS power domain driver for MediaTek MT7622 SoC
soc: mediatek: add header files required for MT7622 SCPSYS dt-binding
soc: mediatek: reduce code duplication of scpsys_probe across all SoCs
dt-bindings: soc: update the binding document for SCPSYS on MediaTek MT7622 SoC
reset: uniphier: add analog amplifiers reset control
reset: uniphier: add video input subsystem reset control
...
|
||
|
Linus Torvalds
|
7f1b9be13a |
ARM/arm64: SoC platform updates for v4.14
This branch contains platform updates for 32- and 64-bit ARM,
including defconfig updates to enable new options, drivers and
platforms. There are also a few fixes and cleanups for some existing vendors.
Some of the things worth highlighting here are:
- Enabling new crypt drivers on arm64 defconfig
- QCOM IPQ8074 clocks and pinctrl drivers on arm64 defconfig
- Debug support enabled for Renesas r8a7743
- Various config updates for Renesas platforms (sound, USB, other drivers)
- Platform support (including SMP) for TI dra762
- OMAP cleanups: Move to use generic 8250 debug_ll, removal of stale DMA code
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Merge tag 'armsoc-platforms' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM/arm64 SoC platform updates from Olof Johansson: "This branch
contains platform updates for 32- and 64-bit ARM, including defconfig
updates to enable new options, drivers and platforms. There are also a
few fixes and cleanups for some existing vendors.
Some of the things worth highlighting here are:
- Enabling new crypt drivers on arm64 defconfig
- QCOM IPQ8074 clocks and pinctrl drivers on arm64 defconfig
- Debug support enabled for Renesas r8a7743
- Various config updates for Renesas platforms (sound, USB, other
drivers)
- Platform support (including SMP) for TI dra762
- OMAP cleanups: Move to use generic 8250 debug_ll, removal of stale
DMA code"
* tag 'armsoc-platforms' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (109 commits)
ARM: multi_v7_defconfig: make eSDHC driver built-in
arm64: defconfig: enable rockchip graphics
MAINTAINERS: Update Cavium ThunderX2 entry
ARM: config: aspeed: Add I2C, VUART, LPC Snoop
ARM: configs: aspeed: Update Aspeed G4 with VMSPLIT_2G
ARM: s3c24xx: Fix NAND ECC mode for mini2440 board
ARM: davinci_all_defconfig: enable tinydrm and ST7586
arm64: defconfig: Enable QCOM IPQ8074 clock and pinctrl
ARM: defconfig: tegra: Enable ChipIdea UDC driver
ARM: configs: Add Tegra I2S interfaces to multi_v7_defconfig
ARM: tegra: Add Tegra I2S interfaces to defconfig
ARM: tegra: Update default configuration for v4.13-rc1
MAINTAINERS: update ARM/ZTE entry
soc: versatile: remove unnecessary static in realview_soc_probe()
ARM: Convert to using %pOF instead of full_name
ARM: hisi: Fix typo in comment
ARM: multi_v7_defconfig: add CONFIG_BRCMSTB_THERMAL
arm64: defconfig: add CONFIG_BRCMSTB_THERMAL
arm64: defconfig: add recently added crypto drivers as modules
arm64: defconfig: enable CONFIG_UNIPHIER_WATCHDOG
...
|
||
|
Tobias Klauser
|
56ce2f25ab |
openrisc: add forward declaration for struct vm_area_struct
After removing linux/vmalloc.h from asm-generic/io.h, the following
warning occurs on openrisc:
In file included from arch/openrisc/include/asm/io.h:33:0,
from include/linux/io.h:25,
from drivers/tty/serial/earlycon.c:19:
arch/openrisc/include/asm/pgtable.h:424:2: warning: 'struct vm_area_struct' declared inside parameter list
unsigned long address, pte_t *pte)
^
arch/openrisc/include/asm/pgtable.h:424:2: warning: its scope is only this definition or declaration, which is probably not what you want
Reported-by: kbuild test robot <lkp@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Stafford Horne <shorne@gmail.com>
|
||
|
Linus Torvalds
|
d719518d9c |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc updates from David Miller:
1) Use register window state adjustment instructions when available,
from Anthony Yznaga.
2) Add VCC console concentrator driver, from Jag Raman.
3) Add 16GB hugepage support, from Nitin Gupta.
4) Support cpu 'poke' hypercall, from Vijay Kumar.
5) Add M7/M8 optimized memcpy/memset/copy_{to,from}_user, from Babu
Moger.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (33 commits)
sparc64: Handle additional cases of no fault loads
sparc64: speed up etrap/rtrap on NG2 and later processors
sparc64: vcc: make ktermios const
sparc: leon: grpci1: constify of_device_id
sparc: leon: grpci2: constify of_device_id
sparc64: vcc: Check for IS_ERR() instead of NULL
sparc64: Cleanup hugepage table walk functions
sparc64: Add 16GB hugepage support
sparc64: Support huge PUD case in get_user_pages
sparc64: vcc: Add install & cleanup TTY operations
sparc64: vcc: Add break_ctl TTY operation
sparc64: vcc: Add chars_in_buffer TTY operation
sparc64: vcc: Add write & write_room TTY operations
sparc64: vcc: Add hangup TTY operation
sparc64: vcc: Add open & close TTY operations
sparc64: vcc: Enable LDC event processing engine
sparc64: vcc: Add RX & TX timer for delayed LDC operation
sparc64: vcc: Create sysfs attribute group
sparc64: vcc: Enable VCC port probe and removal
sparc64: vcc: TTY driver initialization and cleanup
...
|
||
|
Geert Uytterhoeven
|
4c2b5e0fab |
m68k: Add braces to __pmd(x) initializer to kill compiler warning
With gcc 4.1.2:
include/linux/swapops.h: In function ‘swp_entry_to_pmd’:
include/linux/swapops.h:294: warning: missing braces around initializer
include/linux/swapops.h:294: warning: (near initialization for ‘(anonymous).pmd’)
Due to a GCC zero initializer bug (#53119), the standard "(pmd_t){ 0 }"
initializer is not accepted by all GCC versions.
In addition, on m68k pmd_t is an array instead of a single value, so we
need "(pmd_t){ { 0 }, }" instead of "(pmd_t){ 0 }".
Based on commit
|
||
|
Andy Lutomirski
|
7898f79654 |
x86/mm/64: Fix an incorrect warning with CONFIG_DEBUG_VM=y, !PCID
I've been staring at the word PCID too long.
Fixes: f13c8e8c58ba ("x86/mm: Reinitialize TLB state on hotplug and resume")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
|
Rob Gardner
|
b6fe108966 |
sparc64: Handle additional cases of no fault loads
Load instructions using ASI_PNF or other no-fault ASIs should not cause a SIGSEGV or SIGBUS. A garden variety unmapped address follows the TSB miss path, and when no valid mapping is found in the process page tables, the miss handler checks to see if the access was via a no-fault ASI. It then fixes up the target register with a zero, and skips the no-fault load instruction. But different paths are taken for data access exceptions and alignment traps, and these do not respect the no-fault ASI. We add checks in these paths for the no-fault ASI, and fix up the target register and TPC just like in the TSB miss case. Signed-off-by: Rob Gardner <rob.gardner@oracle.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net> |
||
|
Anthony Yznaga
|
a7159a87a3 |
sparc64: speed up etrap/rtrap on NG2 and later processors
For many sun4v processor types, reading or writing a privileged register
has a latency of 40 to 70 cycles. Use a combination of the low-latency
allclean, otherw, normalw, and nop instructions in etrap and rtrap to
replace 2 rdpr and 5 wrpr instructions and improve etrap/rtrap
performance. allclean, otherw, and normalw are available on NG2 and
later processors.
The average ticks to execute the flush windows trap ("ta 0x3") with and
without this patch on select platforms:
CPU Not patched Patched % Latency Reduction
NG2 1762 1558 -11.58
NG4 3619 3204 -11.47
M7 3015 2624 -12.97
SPARC64-X 829 770 -7.12
Signed-off-by: Anthony Yznaga <anthony.yznaga@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
||
|
Linus Torvalds
|
4dfc278803 |
IOMMU Updates for Linux v4.14
Slightly more changes than usual this time:
- KDump Kernel IOMMU take-over code for AMD IOMMU. The code now
tries to preserve the mappings of the kernel so that master
aborts for devices are avoided. Master aborts cause some
devices to fail in the kdump kernel, so this code makes the
dump more likely to succeed when AMD IOMMU is enabled.
- Common flush queue implementation for IOVA code users. The
code is still optional, but AMD and Intel IOMMU drivers had
their own implementation which is now unified.
- Finish support for iommu-groups. All drivers implement this
feature now so that IOMMU core code can rely on it.
- Finish support for 'struct iommu_device' in iommu drivers. All
drivers now use the interface.
- New functions in the IOMMU-API for explicit IO/TLB flushing.
This will help to reduce the number of IO/TLB flushes when
IOMMU drivers support this interface.
- Support for mt2712 in the Mediatek IOMMU driver
- New IOMMU driver for QCOM hardware
- System PM support for ARM-SMMU
- Shutdown method for ARM-SMMU-v3
- Some constification patches
- Various other small improvements and fixes
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Merge tag 'iommu-updates-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
"Slightly more changes than usual this time:
- KDump Kernel IOMMU take-over code for AMD IOMMU. The code now tries
to preserve the mappings of the kernel so that master aborts for
devices are avoided. Master aborts cause some devices to fail in
the kdump kernel, so this code makes the dump more likely to
succeed when AMD IOMMU is enabled.
- common flush queue implementation for IOVA code users. The code is
still optional, but AMD and Intel IOMMU drivers had their own
implementation which is now unified.
- finish support for iommu-groups. All drivers implement this feature
now so that IOMMU core code can rely on it.
- finish support for 'struct iommu_device' in iommu drivers. All
drivers now use the interface.
- new functions in the IOMMU-API for explicit IO/TLB flushing. This
will help to reduce the number of IO/TLB flushes when IOMMU drivers
support this interface.
- support for mt2712 in the Mediatek IOMMU driver
- new IOMMU driver for QCOM hardware
- system PM support for ARM-SMMU
- shutdown method for ARM-SMMU-v3
- some constification patches
- various other small improvements and fixes"
* tag 'iommu-updates-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (87 commits)
iommu/vt-d: Don't be too aggressive when clearing one context entry
iommu: Introduce Interface for IOMMU TLB Flushing
iommu/s390: Constify iommu_ops
iommu/vt-d: Avoid calling virt_to_phys() on null pointer
iommu/vt-d: IOMMU Page Request needs to check if address is canonical.
arm/tegra: Call bus_set_iommu() after iommu_device_register()
iommu/exynos: Constify iommu_ops
iommu/ipmmu-vmsa: Make ipmmu_gather_ops const
iommu/ipmmu-vmsa: Rereserving a free context before setting up a pagetable
iommu/amd: Rename a few flush functions
iommu/amd: Check if domain is NULL in get_domain() and return -EBUSY
iommu/mediatek: Fix a build warning of BIT(32) in ARM
iommu/mediatek: Fix a build fail of m4u_type
iommu: qcom: annotate PM functions as __maybe_unused
iommu/pamu: Fix PAMU boot crash
memory: mtk-smi: Degrade SMI init to module_init
iommu/mediatek: Enlarge the validate PA range for 4GB mode
iommu/mediatek: Disable iommu clock when system suspend
iommu/mediatek: Move pgtable allocation into domain_alloc
iommu/mediatek: Merge 2 M4U HWs into one iommu domain
...
|
||
|
Linus Torvalds
|
a59e57da49 |
MTD changes for 4.14:
General updates:
* Constify pci_device_id in various drivers
* Constify device_type
* Remove pad control code from the Gemini driver
* Use %pOF to print OF node full_name
* Various fixes in the physmap_of driver
* Remove unused vars in mtdswap
* Check devm_kzalloc() return value in the spear_smi driver
* Check clk_prepare_enable() return code in the st_spi_fsm driver
* Create per MTD device debugfs enties
NAND updates, from Boris Brezillon:
* Fix memory leaks in the core
* Remove unused NAND locking support
* Rename nand.h into rawnand.h (preparing support for spi NANDs)
* Use NAND_MAX_ID_LEN where appropriate
* Fix support for 20nm Hynix chips
* Fix support for Samsung and Hynix SLC NANDs
* Various cleanup, improvements and fixes in the qcom driver
* Fixes for bugs detected by various static code analysis tools
* Fix mxc ooblayout definition
* Add a new part_parsers to tmio and sharpsl platform data in order to
define a custom list of partition parsers
* Request the reset line in exclusive mode in the sunxi driver
* Fix a build error in the orion-nand driver when compiled for ARMv4
* Allow 64-bit mvebu platforms to select the PXA3XX driver
SPI NOR updates, from Cyrille Pitchen and Marek Vasut:
* add support to the JEDEC JESD216B specification (SFDP tables).
* add support to the Intel Denverton SPI flash controller.
* fix error recovery for Spansion/Cypress SPI NOR memories.
* fix 4-byte address management for the Aspeed SPI controller.
* add support to some Microchip SST26 memory parts
* remove unneeded pinctrl header Write a message for tag:
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Merge tag 'for-linus-20170904' of git://git.infradead.org/linux-mtd
Pull MTD updates from Boris Brezillon:
"General updates:
- Constify pci_device_id in various drivers
- Constify device_type
- Remove pad control code from the Gemini driver
- Use %pOF to print OF node full_name
- Various fixes in the physmap_of driver
- Remove unused vars in mtdswap
- Check devm_kzalloc() return value in the spear_smi driver
- Check clk_prepare_enable() return code in the st_spi_fsm driver
- Create per MTD device debugfs enties
NAND updates, from Boris Brezillon:
- Fix memory leaks in the core
- Remove unused NAND locking support
- Rename nand.h into rawnand.h (preparing support for spi NANDs)
- Use NAND_MAX_ID_LEN where appropriate
- Fix support for 20nm Hynix chips
- Fix support for Samsung and Hynix SLC NANDs
- Various cleanup, improvements and fixes in the qcom driver
- Fixes for bugs detected by various static code analysis tools
- Fix mxc ooblayout definition
- Add a new part_parsers to tmio and sharpsl platform data in order
to define a custom list of partition parsers
- Request the reset line in exclusive mode in the sunxi driver
- Fix a build error in the orion-nand driver when compiled for ARMv4
- Allow 64-bit mvebu platforms to select the PXA3XX driver
SPI NOR updates, from Cyrille Pitchen and Marek Vasut:
- add support to the JEDEC JESD216B specification (SFDP tables).
- add support to the Intel Denverton SPI flash controller.
- fix error recovery for Spansion/Cypress SPI NOR memories.
- fix 4-byte address management for the Aspeed SPI controller.
- add support to some Microchip SST26 memory parts
- remove unneeded pinctrl header Write a message for tag:"
* tag 'for-linus-20170904' of git://git.infradead.org/linux-mtd: (74 commits)
mtd: nand: complain loudly when chip->bits_per_cell is not correctly initialized
mtd: nand: make Samsung SLC NAND usable again
mtd: nand: tmio: Register partitions using the parsers
mfd: tmio: Add partition parsers platform data
mtd: nand: sharpsl: Register partitions using the parsers
mtd: nand: sharpsl: Add partition parsers platform data
mtd: nand: qcom: Support for IPQ8074 QPIC NAND controller
mtd: nand: qcom: support for IPQ4019 QPIC NAND controller
dt-bindings: qcom_nandc: IPQ8074 QPIC NAND documentation
dt-bindings: qcom_nandc: IPQ4019 QPIC NAND documentation
dt-bindings: qcom_nandc: fix the ipq806x device tree example
mtd: nand: qcom: support for different DEV_CMD register offsets
mtd: nand: qcom: QPIC data descriptors handling
mtd: nand: qcom: enable BAM or ADM mode
mtd: nand: qcom: erased codeword detection configuration
mtd: nand: qcom: support for read location registers
mtd: nand: qcom: support for passing flags in DMA helper functions
mtd: nand: qcom: add BAM DMA descriptor handling
mtd: nand: qcom: allocate BAM transaction
mtd: nand: qcom: DMA mapping support for register read buffer
...
|
||
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Linus Torvalds
|
d2d8f51e28 |
Merge branch 'i2c/for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang: - new drivers for Spreadtrum I2C, Intel Cherry Trail Whiskey Cove SMBUS - quite some driver updates - cleanups for the i2c-mux subsystem - some subsystem-wide constification - further cleanup of include/linux/i2c * 'i2c/for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (50 commits) i2c: sprd: Fix undefined reference errors i2c: nomadik: constify amba_id i2c: versatile: Make i2c_algo_bit_data const i2c: busses: make i2c_adapter_quirks const i2c: busses: make i2c_adapter const i2c: busses: make i2c_algorithm const i2c: Add Spreadtrum I2C controller driver dt-bindings: i2c: Add Spreadtrum I2C controller documentation i2c-cht-wc: make cht_wc_i2c_adap_driver static MAINTAINERS: Add entry for drivers/i2c/busses/i2c-cht-wc.c i2c: aspeed: Retain delay/setup/hold values when configuring bus frequency dt-bindings: i2c: eeprom: Document vendor to be used and deprecated ones i2c: i801: Restore the presence state of P2SB PCI device after reading BAR MAINTAINERS: drop entry for Blackfin I2C and Sonic's email blackfin: merge the two TWI header files i2c: davinci: Preserve return value of devm_clk_get i2c: mediatek: Add i2c compatible for MediaTek MT7622 dt-bindings: i2c: Add MediaTek MT7622 i2c binding dt-bindings: i2c: modify information formats i2c: mux: i2c-arb-gpio-challenge: allow compiling w/o OF support ... |
||
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Linus Torvalds
|
fbf4432ff7 |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: - most of the rest of MM - a small number of misc things - lib/ updates - checkpatch - autofs updates - ipc/ updates * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (126 commits) ipc: optimize semget/shmget/msgget for lots of keys ipc/sem: play nicer with large nsops allocations ipc/sem: drop sem_checkid helper ipc: convert kern_ipc_perm.refcount from atomic_t to refcount_t ipc: convert sem_undo_list.refcnt from atomic_t to refcount_t ipc: convert ipc_namespace.count from atomic_t to refcount_t kcov: support compat processes sh: defconfig: cleanup from old Kconfig options mn10300: defconfig: cleanup from old Kconfig options m32r: defconfig: cleanup from old Kconfig options drivers/pps: use surrounding "if PPS" to remove numerous dependency checks drivers/pps: aesthetic tweaks to PPS-related content cpumask: make cpumask_next() out-of-line kmod: move #ifdef CONFIG_MODULES wrapper to Makefile kmod: split off umh headers into its own file MAINTAINERS: clarify kmod is just a kernel module loader kmod: split out umh code into its own file test_kmod: flip INT checks to be consistent test_kmod: remove paranoid UINT_MAX check on uint range processing vfat: deduplicate hex2bin() ... |
||
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Russell King
|
e558bdc21a | Merge branches 'fixes' and 'misc' into for-linus | ||
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Dustin Brown
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9a3dc3186f |
ARM: 8691/1: Export save_stack_trace_tsk()
The kernel watchdog is a great debugging tool for finding tasks that consume a disproportionate amount of CPU time in contiguous chunks. One can imagine building a similar watchdog for arbitrary driver threads using save_stack_trace_tsk() and print_stack_trace(). However, this is not viable for dynamically loaded driver modules on ARM platforms because save_stack_trace_tsk() is not exported for those architectures. Export save_stack_trace_tsk() for the ARM architecture to align with x86 and support various debugging use cases such as arbitrary driver thread watchdog timers. Signed-off-by: Dustin Brown <dustinb@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> |
||
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Krzysztof Kozlowski
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229cf16d3c |
sh: defconfig: cleanup from old Kconfig options
Remove old, dead Kconfig options (in order appearing in this commit): - EXPERIMENTAL is gone since v3.9; - INET_LRO: commit |
||
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Krzysztof Kozlowski
|
6facfb1964 |
mn10300: defconfig: cleanup from old Kconfig options
Remove old, dead Kconfig options (in order appearing in this commit): - EXPERIMENTAL is gone since v3.9; - INET_LRO: commit |
||
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Krzysztof Kozlowski
|
4ed2d96720 |
m32r: defconfig: cleanup from old Kconfig options
Remove old, dead Kconfig options (in order appearing in this commit): - EXPERIMENTAL is gone since v3.9; - IP_NF_QUEUE: commit |
||
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Babu Moger
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206d3642d8 |
arch/microblaze: add choice for endianness and update Makefile
microblaze architectures can be configured for either little or big endian formats. Add a choice option for the user to select the correct endian format(default to big endian). Also update the Makefile so toolchain can compile for the format it is configured for. Link: http://lkml.kernel.org/r/1499358861-179979-3-git-send-email-babu.moger@oracle.com Signed-off-by: Babu Moger <babu.moger@oracle.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Michal Simek <monstr@monstr.eu> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: David S. Miller <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greg KH <gregkh@linuxfoundation.org> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stafford Horne <shorne@gmail.com> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
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Babu Moger
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4c97a0c8fe |
arch: define CPU_BIG_ENDIAN for all fixed big endian archs
Patch series "Define CPU_BIG_ENDIAN or warn for inconsistencies", v3.
While working on enabling queued rwlock on SPARC, found this following
code in include/asm-generic/qrwlock.h which uses CONFIG_CPU_BIG_ENDIAN to
clear a byte.
static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
{
return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
}
Problem is many of the fixed big endian architectures don't define
CPU_BIG_ENDIAN and clears the wrong byte.
Define CPU_BIG_ENDIAN for all the fixed big endian architecture to fix it.
Also found few more references of this config parameter in
drivers/of/base.c
drivers/of/fdt.c
drivers/tty/serial/earlycon.c
drivers/tty/serial/serial_core.c
Be aware that this may cause regressions if someone has worked-around
problems in the above code already. Remove the work-around.
Here is our original discussion
https://lkml.org/lkml/2017/5/24/620
Link: http://lkml.kernel.org/r/1499358861-179979-2-git-send-email-babu.moger@oracle.com
Signed-off-by: Babu Moger <babu.moger@oracle.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Stafford Horne <shorne@gmail.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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||
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Alexey Dobriyan
|
9b130ad5bb |
treewide: make "nr_cpu_ids" unsigned
First, number of CPUs can't be negative number. Second, different signnnedness leads to suboptimal code in the following cases: 1) kmalloc(nr_cpu_ids * sizeof(X)); "int" has to be sign extended to size_t. 2) while (loff_t *pos < nr_cpu_ids) MOVSXD is 1 byte longed than the same MOV. Other cases exist as well. Basically compiler is told that nr_cpu_ids can't be negative which can't be deduced if it is "int". Code savings on allyesconfig kernel: -3KB add/remove: 0/0 grow/shrink: 25/264 up/down: 261/-3631 (-3370) function old new delta coretemp_cpu_online 450 512 +62 rcu_init_one 1234 1272 +38 pci_device_probe 374 399 +25 ... pgdat_reclaimable_pages 628 556 -72 select_fallback_rq 446 369 -77 task_numa_find_cpu 1923 1807 -116 Link: http://lkml.kernel.org/r/20170819114959.GA30580@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
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Matthew Wilcox
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ac036f9570 |
vga: optimise console scrolling
Where possible, call memset16(), memmove() or memcpy() instead of using open-coded loops. I don't like the calling convention that uses a byte count instead of a count of u16s, but it's a little late to change that. Reduces code size of fbcon.o by almost 400 bytes on my laptop build. [akpm@linux-foundation.org: fix build] Link: http://lkml.kernel.org/r/20170720184539.31609-9-willy@infradead.org Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Miller <davem@davemloft.net> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Minchan Kim <minchan@kernel.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Russell King <rmk+kernel@armlinux.org.uk> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
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Matthew Wilcox
|
92ce4c3ea7 |
alpha: add support for memset16
Alpha already had an optimised fill-memory-with-16-bit-quantity assembler routine called memsetw(). It has a slightly different calling convention from memset16() in that it takes a byte count, not a count of words. That's the same convention used by ARM's __memset routines, so rename Alpha's routine to match and add a memset16() wrapper around it. Then convert Alpha's scr_memsetw() to call memset16() instead of memsetw(). Link: http://lkml.kernel.org/r/20170720184539.31609-6-willy@infradead.org Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: David Miller <davem@davemloft.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Minchan Kim <minchan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Russell King <rmk+kernel@armlinux.org.uk> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
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Matthew Wilcox
|
fd1d362600 |
ARM: implement memset32 & memset64
Reuse the existing optimised memset implementation to implement an optimised memset32 and memset64. Link: http://lkml.kernel.org/r/20170720184539.31609-5-willy@infradead.org Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: David Miller <davem@davemloft.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Minchan Kim <minchan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Matthew Wilcox
|
4c51248533 |
x86: implement memset16, memset32 & memset64
These are single instructions on x86. There's no 64-bit instruction for x86-32, but we don't yet have any user for memset64() on 32-bit architectures, so don't bother to implement it. Link: http://lkml.kernel.org/r/20170720184539.31609-4-willy@infradead.org Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: David Miller <davem@davemloft.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Russell King <rmk+kernel@armlinux.org.uk> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Michal Hocko
|
3072e413e3 |
mm/memory_hotplug: introduce add_pages
There are new users of memory hotplug emerging. Some of them require different subset of arch_add_memory. There are some which only require allocation of struct pages without mapping those pages to the kernel address space. We currently have __add_pages for that purpose. But this is rather lowlevel and not very suitable for the code outside of the memory hotplug. E.g. x86_64 wants to update max_pfn which should be done by the caller. Introduce add_pages() which should care about those details if they are needed. Each architecture should define its implementation and select CONFIG_ARCH_HAS_ADD_PAGES. All others use the currently existing __add_pages. Link: http://lkml.kernel.org/r/20170817000548.32038-7-jglisse@redhat.com Signed-off-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Cc: Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Dan Williams <dan.j.williams@intel.com> Cc: David Nellans <dnellans@nvidia.com> Cc: Evgeny Baskakov <ebaskakov@nvidia.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mark Hairgrove <mhairgrove@nvidia.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Sherry Cheung <SCheung@nvidia.com> Cc: Subhash Gutti <sgutti@nvidia.com> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Bob Liu <liubo95@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Naoya Horiguchi
|
ab6e3d0939 |
mm: soft-dirty: keep soft-dirty bits over thp migration
Soft dirty bit is designed to keep tracked over page migration. This patch makes it work in the same manner for thp migration too. Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Zi Yan <zi.yan@cs.rutgers.edu> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: David Nellans <dnellans@nvidia.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Minchan Kim <minchan@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Zi Yan
|
616b837153 |
mm: thp: enable thp migration in generic path
Add thp migration's core code, including conversions between a PMD entry and a swap entry, setting PMD migration entry, removing PMD migration entry, and waiting on PMD migration entries. This patch makes it possible to support thp migration. If you fail to allocate a destination page as a thp, you just split the source thp as we do now, and then enter the normal page migration. If you succeed to allocate destination thp, you enter thp migration. Subsequent patches actually enable thp migration for each caller of page migration by allowing its get_new_page() callback to allocate thps. [zi.yan@cs.rutgers.edu: fix gcc-4.9.0 -Wmissing-braces warning] Link: http://lkml.kernel.org/r/A0ABA698-7486-46C3-B209-E95A9048B22C@cs.rutgers.edu [akpm@linux-foundation.org: fix x86_64 allnoconfig warning] Signed-off-by: Zi Yan <zi.yan@cs.rutgers.edu> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: David Nellans <dnellans@nvidia.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Minchan Kim <minchan@kernel.org> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Naoya Horiguchi
|
9c670ea379 |
mm: thp: introduce CONFIG_ARCH_ENABLE_THP_MIGRATION
Introduce CONFIG_ARCH_ENABLE_THP_MIGRATION to limit thp migration functionality to x86_64, which should be safer at the first step. Link: http://lkml.kernel.org/r/20170717193955.20207-5-zi.yan@sent.com Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Zi Yan <zi.yan@cs.rutgers.edu> Reviewed-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: David Nellans <dnellans@nvidia.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Minchan Kim <minchan@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Naoya Horiguchi
|
eee4818baa |
mm: x86: move _PAGE_SWP_SOFT_DIRTY from bit 7 to bit 1
_PAGE_PSE is used to distinguish between a truly non-present
(_PAGE_PRESENT=0) PMD, and a PMD which is undergoing a THP split and
should be treated as present.
But _PAGE_SWP_SOFT_DIRTY currently uses the _PAGE_PSE bit, which would
cause confusion between one of those PMDs undergoing a THP split, and a
soft-dirty PMD. Dropping _PAGE_PSE check in pmd_present() does not work
well, because it can hurt optimization of tlb handling in thp split.
Thus, we need to move the bit.
In the current kernel, bits 1-4 are not used in non-present format since
commit
|
||
|
Linus Torvalds
|
ee89252b9e |
ARC changes for 4.14-rc1
- support for HSDK board hosting a Quad core HS38x4 based SoC running @ 1 GHz
(and some prerrquisite changes such as ability to scoot the kernel code/data
from start of memory map etc)
- Quite a few updates for EZChip (Mellanox) platform
- Fixes to fault/exception printing
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Merge tag 'arc-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC updates from Vineet Gupta:
- Support for HSDK board hosting a Quad core HS38x4 based SoC running
@1GHz (and some prerrquisite changes such as ability to scoot the
kernel code/data from start of memory map etc)
- Quite a few updates for EZChip (Mellanox) platform
- Fixes to fault/exception printing
* tag 'arc-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (26 commits)
ARC: Re-enable MMU upon Machine Check exception
ARC: Show fault information passed to show_kernel_fault_diag()
ARC: [plat-hsdk] initial port for HSDK board
ARC: mm: Decouple RAM base address from kernel link address
ARCv2: IOC: Tighten up the contraints (specifically base / size alignment)
ARC: [plat-axs103] refactor the DT fudging code
ARC: [plat-axs103] use clk driver #2: Add core pll node to DT to manage cpu clk
ARC: [plat-axs103] use clk driver #1: Get rid of platform specific cpu clk setting
ARCv2: SLC: provide a line based flush routine for debugging
ARC: Hardcode ARCH_DMA_MINALIGN to max line length we may have
ARC: [plat-eznps] handle extra aux regs #2: kernel/entry exit
ARC: [plat-eznps] handle extra aux regs #1: save/restore on context switch
ARC: [plat-eznps] avoid toggling of DPC register
ARC: [plat-eznps] Update the init sequence of aux regs per cpu.
ARC: [plat-eznps] new command line argument for HW scheduler at MTM
ARC: set boot print log level to PR_INFO
ARC: [plat-eznps] Handle user memory error same in simulation and silicon
ARC: [plat-eznps] use schd.wft instruction instead of sleep at idle task
ARC: create cpu specific version of arch_cpu_idle()
ARC: [plat-eznps] spinlock aware for MTM
...
|
||
|
Linus Torvalds
|
0d519f2d1e |
pci-v4.14-changes
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R. Silva, Harunobu Kurokawa, Jeffy Chen, Lorenzo Pieralisi, Sergei Shtylyov) - clean up SR-IOV resource handling by disabling VF decoding before updating the corresponding resource structs (Gavin Shan) - clean up DesignWare-based drivers by unifying quirks to update Class Code and Interrupt Pin and related handling of write-protected registers (Hou Zhiqiang) - clean up by adding empty generic pcibios_align_resource() and pcibios_fixup_bus() and removing empty arch-specific implementations (Palmer Dabbelt) - request exclusive reset control for several drivers to allow cleanup elsewhere (Philipp Zabel) - constify various structures (Arvind Yadav, Bhumika Goyal) - convert from full_name() to %pOF (Rob Herring) - remove unused variables from iProc, HiSi, Altera, Keystone (Shawn Lin) * tag 'pci-v4.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (170 commits) PCI: xgene: Clean up whitespace PCI: xgene: Define XGENE_PCI_EXP_CAP and use generic PCI_EXP_RTCTL offset PCI: xgene: Fix platform_get_irq() error handling PCI: xilinx-nwl: Fix platform_get_irq() error handling PCI: rockchip: Fix platform_get_irq() error handling PCI: altera: Fix platform_get_irq() error handling PCI: spear13xx: Fix platform_get_irq() error handling PCI: artpec6: Fix platform_get_irq() error handling PCI: armada8k: Fix platform_get_irq() error handling PCI: dra7xx: Fix platform_get_irq() error handling PCI: exynos: Fix platform_get_irq() error handling PCI: iproc: Clean up whitespace PCI: iproc: Rename PCI_EXP_CAP to IPROC_PCI_EXP_CAP PCI: iproc: Add 500ms delay during device shutdown PCI: Fix typos and whitespace errors PCI: Remove unused "res" variable from pci_resource_io() PCI: Correct kernel-doc of pci_vpd_srdt_size(), pci_vpd_srdt_tag() PCI/AER: Reformat AER register definitions iommu/vt-d: Prevent VMD child devices from being remapping targets x86/PCI: Use is_vmd() rather than relying on the domain number ... |
||
|
Linus Torvalds
|
0756b7fbb6 |
First batch of KVM changes for 4.14
Common:
- improve heuristic for boosting preempted spinlocks by ignoring VCPUs
in user mode
ARM:
- fix for decoding external abort types from guests
- added support for migrating the active priority of interrupts when
running a GICv2 guest on a GICv3 host
- minor cleanup
PPC:
- expose storage keys to userspace
- merge powerpc/topic/ppc-kvm branch that contains
find_linux_pte_or_hugepte and POWER9 thread management cleanup
- merge kvm-ppc-fixes with a fix that missed 4.13 because of vacations
- fixes
s390:
- merge of topic branch tlb-flushing from the s390 tree to get the
no-dat base features
- merge of kvm/master to avoid conflicts with additional sthyi fixes
- wire up the no-dat enhancements in KVM
- multiple epoch facility (z14 feature)
- Configuration z/Architecture Mode
- more sthyi fixes
- gdb server range checking fix
- small code cleanups
x86:
- emulate Hyper-V TSC frequency MSRs
- add nested INVPCID
- emulate EPTP switching VMFUNC
- support Virtual GIF
- support 5 level page tables
- speedup nested VM exits by packing byte operations
- speedup MMIO by using hardware provided physical address
- a lot of fixes and cleanups, especially nested
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Merge tag 'kvm-4.14-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Radim Krčmář:
"First batch of KVM changes for 4.14
Common:
- improve heuristic for boosting preempted spinlocks by ignoring
VCPUs in user mode
ARM:
- fix for decoding external abort types from guests
- added support for migrating the active priority of interrupts when
running a GICv2 guest on a GICv3 host
- minor cleanup
PPC:
- expose storage keys to userspace
- merge kvm-ppc-fixes with a fix that missed 4.13 because of
vacations
- fixes
s390:
- merge of kvm/master to avoid conflicts with additional sthyi fixes
- wire up the no-dat enhancements in KVM
- multiple epoch facility (z14 feature)
- Configuration z/Architecture Mode
- more sthyi fixes
- gdb server range checking fix
- small code cleanups
x86:
- emulate Hyper-V TSC frequency MSRs
- add nested INVPCID
- emulate EPTP switching VMFUNC
- support Virtual GIF
- support 5 level page tables
- speedup nested VM exits by packing byte operations
- speedup MMIO by using hardware provided physical address
- a lot of fixes and cleanups, especially nested"
* tag 'kvm-4.14-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (67 commits)
KVM: arm/arm64: Support uaccess of GICC_APRn
KVM: arm/arm64: Extract GICv3 max APRn index calculation
KVM: arm/arm64: vITS: Drop its_ite->lpi field
KVM: arm/arm64: vgic: constify seq_operations and file_operations
KVM: arm/arm64: Fix guest external abort matching
KVM: PPC: Book3S HV: Fix memory leak in kvm_vm_ioctl_get_htab_fd
KVM: s390: vsie: cleanup mcck reinjection
KVM: s390: use WARN_ON_ONCE only for checking
KVM: s390: guestdbg: fix range check
KVM: PPC: Book3S HV: Report storage key support to userspace
KVM: PPC: Book3S HV: Fix case where HDEC is treated as 32-bit on POWER9
KVM: PPC: Book3S HV: Fix invalid use of register expression
KVM: PPC: Book3S HV: Fix H_REGISTER_VPA VPA size validation
KVM: PPC: Book3S HV: Fix setting of storage key in H_ENTER
KVM: PPC: e500mc: Fix a NULL dereference
KVM: PPC: e500: Fix some NULL dereferences on error
KVM: PPC: Book3S HV: Protect updates to spapr_tce_tables list
KVM: s390: we are always in czam mode
KVM: s390: expose no-DAT to guest and migration support
KVM: s390: sthyi: remove invalid guest write access
...
|
||
|
Radim Krčmář
|
5f54c8b2d4 |
Merge branch 'kvm-ppc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
This fix was intended for 4.13, but didn't get in because both maintainers were on vacation. Paul Mackerras: "It adds mutual exclusion between list_add_rcu and list_del_rcu calls on the kvm->arch.spapr_tce_tables list. Without this, userspace could potentially trigger corruption of the list and cause a host crash or worse." |
||
|
Linus Torvalds
|
44ccba3f7b |
- For the randstruct plugin, enable automatic randomization of structures
that are entirely function pointers (along with a couple designated
initializer fixes).
- For the structleak plugin, provide an option to perform zeroing
initialization of all otherwise uninitialized stack variables that are
passed by reference (Ard Biesheuvel).
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Merge tag 'gcc-plugins-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull gcc plugins update from Kees Cook:
"This finishes the porting work on randstruct, and introduces a new
option to structleak, both noted below:
- For the randstruct plugin, enable automatic randomization of
structures that are entirely function pointers (along with a couple
designated initializer fixes).
- For the structleak plugin, provide an option to perform zeroing
initialization of all otherwise uninitialized stack variables that
are passed by reference (Ard Biesheuvel)"
* tag 'gcc-plugins-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
gcc-plugins: structleak: add option to init all vars used as byref args
randstruct: Enable function pointer struct detection
drivers/net/wan/z85230.c: Use designated initializers
drm/amd/powerplay: rv: Use designated initializers
|
||
|
Linus Torvalds
|
74fee4e88f |
DeviceTree updates for 4.14:
- Convert more DT code to use of_property_read_* API.
- Improve DT overlay support when adding multiple overlays.
- Convert printk's to %pOF format specifiers. Most went via subsystem
trees, but picked up the remaining orphans.
- Correct unittests to use preferred "okay" for "status" property value.
- Add a KASLR seed property.
- Vendor prefixes for Mellanox, Theobroma System, Adaptrum, Moxa.
- Fix modalias buffer handling.
- Clean-up of include paths for building dtbs.
- Add bindings for amc6821, isl1208, tsl2x7x, srf02, and srf10 devices.
- Add nvmem bindings for MediaTek MT7623 and MT7622 SoC.
- Add compatible string for Allwinner H5 Mali-450 GPU.
- Fix links to old OpenFirmware docs with new mirror on devicetree.org.
- Remove status property from binding doc examples.
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Merge tag 'devicetree-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring:
"There's a few orphans in the conversion to %pOF printf specifiers
included here that no one else picked up.
Summary:
- Convert more DT code to use of_property_read_* API.
- Improve DT overlay support when adding multiple overlays
- Convert printk's to %pOF format specifiers. Most went via subsystem
trees, but picked up the remaining orphans
- Correct unittests to use preferred "okay" for "status" property
value
- Add a KASLR seed property
- Vendor prefixes for Mellanox, Theobroma System, Adaptrum, Moxa
- Fix modalias buffer handling
- Clean-up of include paths for building dtbs
- Add bindings for amc6821, isl1208, tsl2x7x, srf02, and srf10
devices
- Add nvmem bindings for MediaTek MT7623 and MT7622 SoC
- Add compatible string for Allwinner H5 Mali-450 GPU
- Fix links to old OpenFirmware docs with new mirror on
devicetree.org
- Remove status property from binding doc examples"
* tag 'devicetree-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (45 commits)
devicetree: Adjust status "ok" -> "okay" under drivers/of/
dt-bindings: Remove "status" from examples
dt-bindings: pinctrl: sh-pfc: Use generic node name
dt-bindings: Add vendor Mellanox
dt-binding: net/phy: fix interrupts description
virt: Convert to using %pOF instead of full_name
macintosh: Convert to using %pOF instead of full_name
ide: pmac: Convert to using %pOF instead of full_name
microblaze: Convert to using %pOF instead of full_name
dt-bindings: usb: musb: Grammar s/the/to/, s/is/are/
of: Use PLATFORM_DEVID_NONE definition
of/device: Fix of_device_get_modalias() buffer handling
of/device: Prevent buffer overflow in of_device_modalias()
dt-bindings: add amc6821, isl1208 trivial bindings
dt-bindings: add vendor prefix for Theobroma Systems
of: search scripts/dtc/include-prefixes path for both CPP and DTC
of: remove arch/$(SRCARCH)/boot/dts from include search path for CPP
of: remove drivers/of/testcase-data from include search path for CPP
of: return of_get_cpu_node from of_cpu_device_node_get if CPUs are not registered
iio: srf08: add device tree binding for srf02 and srf10
...
|
||
|
Linus Torvalds
|
968c61f7da |
- New Drivers
- RK805 Power Management IC (PMIC)
- ROHM BD9571MWV-M MFD Power Management IC (PMIC)
- Texas Instruments TPS68470 Power Management IC (PMIC) & LEDs
- New Device Support
- Add support for HiSilicon Hi6421v530 to hi6421-pmic-core
- Add support for X-Powers AXP806 to axp20x
- Add support for X-Powers AXP813 to axp20x
- Add support for Intel Sunrise Point LPSS to intel-lpss-pci
- New Functionality
- Amend API to provide register layout; atmel-smc
- Fix-ups
- DT re-work; omap, nokia
- Header file location change {I2C => MFD}; dm355evm_msp, tps65010
- Fix chip ID formatting issue(s); rk808
- Optionally register touchscreen devices; da9052-core
- Documentation improvements; twl-core
- Constification; rtsx_pcr, ab8500-core, da9055-i2c, da9052-spi
- Drop unnecessary static declaration; max8925-i2c
- Kconfig changes (missing deps and remove module support)
- Slim down oversized licence statement; hi6421-pmic-core
- Use managed resources (devm_*); lp87565
- Supply proper error checking/handling; t7l66xb
- Bug Fixes
- Fix counter duplication issue; da9052-core
- Fix potential NULL deference issue; max8998
- Leave SPI-NOR write-protection bit alone; lpc_ich
- Ensure device is put into reset during suspend; intel-lpss
- Correct register offset variable size; omap-usb-tll
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Merge tag 'mfd-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers
- RK805 Power Management IC (PMIC)
- ROHM BD9571MWV-M MFD Power Management IC (PMIC)
- Texas Instruments TPS68470 Power Management IC (PMIC) & LEDs
New Device Support:
- Add support for HiSilicon Hi6421v530 to hi6421-pmic-core
- Add support for X-Powers AXP806 to axp20x
- Add support for X-Powers AXP813 to axp20x
- Add support for Intel Sunrise Point LPSS to intel-lpss-pci
New Functionality:
- Amend API to provide register layout; atmel-smc
Fix-ups:
- DT re-work; omap, nokia
- Header file location change {I2C => MFD}; dm355evm_msp, tps65010
- Fix chip ID formatting issue(s); rk808
- Optionally register touchscreen devices; da9052-core
- Documentation improvements; twl-core
- Constification; rtsx_pcr, ab8500-core, da9055-i2c, da9052-spi
- Drop unnecessary static declaration; max8925-i2c
- Kconfig changes (missing deps and remove module support)
- Slim down oversized licence statement; hi6421-pmic-core
- Use managed resources (devm_*); lp87565
- Supply proper error checking/handling; t7l66xb
Bug Fixes:
- Fix counter duplication issue; da9052-core
- Fix potential NULL deference issue; max8998
- Leave SPI-NOR write-protection bit alone; lpc_ich
- Ensure device is put into reset during suspend; intel-lpss
- Correct register offset variable size; omap-usb-tll"
* tag 'mfd-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (61 commits)
mfd: intel_soc_pmic: Differentiate between Bay and Cherry Trail CRC variants
mfd: intel_soc_pmic: Export separate mfd-cell configs for BYT and CHT
dt-bindings: mfd: Add bindings for ZII RAVE devices
mfd: omap-usb-tll: Fix register offsets
mfd: da9052: Constify spi_device_id
mfd: intel-lpss: Put I2C and SPI controllers into reset state on suspend
mfd: da9055: Constify i2c_device_id
mfd: intel-lpss: Add missing PCI ID for Intel Sunrise Point LPSS devices
mfd: t7l66xb: Handle return value of clk_prepare_enable
mfd: Add ROHM BD9571MWV-M PMIC DT bindings
mfd: intel_soc_pmic_chtwc: Turn Kconfig option into a bool
mfd: lp87565: Convert to use devm_mfd_add_devices()
mfd: Add support for TPS68470 device
mfd: lpc_ich: Do not touch SPI-NOR write protection bit on Haswell/Broadwell
mfd: syscon: atmel-smc: Add helper to retrieve register layout
mfd: axp20x: Use correct platform device ID for many PEK
dt-bindings: mfd: axp20x: Introduce bindings for AXP813
mfd: axp20x: Add support for AXP813 PMIC
dt-bindings: mfd: axp20x: Add AXP806 to supported list of chips
mfd: Add ROHM BD9571MWV-M MFD PMIC driver
...
|
||
|
Linus Torvalds
|
9d71941d39 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov: - a new GPIO bit-banging driver implementing PS/2 protocol - a new power key driver for Rockchip RK805 PMIC - bunch of patches constifying various device ID structures - Elan I2C touchpad driver now supports devices with 2 buttons - other assorted fixes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (76 commits) Input: byd - make array seq static, reduces object code size Input: xilinx_ps2 - fix multiline comment style Input: pxa27x_keypad - handle return value of clk_prepare_enable Input: tegra-kbc - handle return value of clk_prepare_enable Input: PS/2 gpio bit banging driver for serio bus Input: xen-kbdfront - enable auto repeat for xen keyboard frontend driver Input: ambakmi - constify amba_id Input: atmel_mxt_ts - add support for reset line Input: atmel_mxt_ts - use more managed resources Input: wacom_w8001 - constify serio_device_id Input: tsc40 - constify serio_device_id Input: touchwin - constify serio_device_id Input: touchright - constify serio_device_id Input: touchit213 - constify serio_device_id Input: penmount - constify serio_device_id Input: mtouch - constify serio_device_id Input: inexio - constify serio_device_id Input: hampshire - constify serio_device_id Input: gunze - constify serio_device_id Input: fujitsu_ts - constify serio_device_id ... |
||
|
Linus Torvalds
|
c0da4fa0d1 |
media updates for v4.14-rc1
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Merge tag 'media/v4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
"Brazil's Independence Day pull request :-)
This is one of the biggest media pull requests, with 625 patches
affecting almost all parts of media (RC, DVB, V4L2, CEC, docs).
This contains:
- A lot of new drivers:
* DVB frontends: mxl5xx, stv0910, stv6111;
* camera flash: as3645a led driver;
* HDMI receiver: adv748X;
* camera sensor: Omnivision 6650 5M driver (ov6650);
* HDMI CEC: ao-cec meson driver;
* V4L2: Qualcom camss driver;
* Remote controller: gpio-ir-tx, pwm-ir-tx and zx-irdec drivers.
- The DDbridge DVB driver got a massive update, with makes it in sync
with modern hardware from that vendor;
- There's an important milestone on this series: the DVB
documentation was written in 2003, but only started to be updated
in 2007. It also used to contain several gaps from the time it was
kept out of tree, mentioning error codes and device nodes that
never existed upstream. On this series, it received a massive
update: all non-deprecated digital TV APIs are now in sync with the
current implementation;
- Some DVB APIs that aren't used by any upstream driver got removed;
- Other parts of the media documentation algo got updated, fixing
some bugs on its PDF output and making it compatible with Sphinx
version 1.6.
As the number of hacks required to build PDF output reduced, I hope
we'll have less troubles as newer versions of our documentation
toolchain are released (famous last words);
- As usual, lots of driver cleanups and improvements"
* tag 'media/v4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (624 commits)
media: leds: as3645a: add V4L2_FLASH_LED_CLASS dependency
media: get rid of removed DMX_GET_CAPS and DMX_SET_SOURCE leftovers
media: Revert "[media] v4l: async: make v4l2 coexist with devicetree nodes in a dt overlay"
media: staging: atomisp: sh_css_calloc shall return a pointer to the allocated space
media: Revert "[media] lirc_dev: remove superfluous get/put_device() calls"
media: add qcom_camss.rst to v4l-drivers rst file
media: dvb headers: make checkpatch happier
media: dvb uapi: move frontend legacy API to another part of the book
media: pixfmt-srggb12p.rst: better format the table for PDF output
media: docs-rst: media: Don't use \small for V4L2_PIX_FMT_SRGGB10 documentation
media: index.rst: don't write "Contents:" on PDF output
media: pixfmt*.rst: replace a two dots by a comma
media: vidioc-g-fmt.rst: adjust table format
media: vivid.rst: add a blank line to correct ReST format
media: v4l2 uapi book: get rid of driver programming's chapter
media: format.rst: use the right markup for important notes
media: docs-rst: cardlists: change their format to flat-tables
media: em28xx-cardlist.rst: update to reflect last changes
media: v4l2-event.rst: adjust table to fit on PDF output
media: docs: don't show ToC for each part on PDF output
...
|
||
|
Linus Torvalds
|
15d8ffc964 |
MMC core:
- Continue to refactor the mmc block code to prepare for blkmq - Move mmc block debugfs into block module - Next step for eMMC CMDQ by adding a new mmc host interface for it - Move Kconfig option MMC_DEBUG from core to host - Some additional minor improvements MMC host: - Declare structs as const when applicable - Explicitly request exclusive reset control when applicable - Improve some error paths and other various cleanups - sdhci: Preparations to support SDHCI OMAP - sdhci: Improve some PM related code - sdhci: Re-factoring and modernizations - sdhci-xenon: Add runtime PM and system sleep support - sdhci-xenon: Add support for eMMC HS400 Enhanced Strobe - sdhci-cadence: Add system sleep support - sdhci-of-at91: Improve system sleep support - dw_mmc: Add support for Hisilicon hi3660 - sunxi: Add support for A83T eMMC - sunxi: Add support for DDR52 mode - meson-gx: Add support for UHS-I SD-cards - meson-gx: Cleanups and improvements - tmio: Fix CMD12 (STOP) handling - tmio: Cleanups and improvements - renesas_sdhi: Add r8a7743/5 support - renesas-sdhi: Add support for R-Car Gen3 SDHI DMAC - renesas_sdhi: Cleanups and improvements -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJZr7CEAAoJEP4mhCVzWIwp5WQQAK9l2Hg1k4tFzxQ5EmKB/9Sm r3eS2GrosqrsCffR3vSSKnmva/lOrQuBzhqzx1MvWAByMUc5w8Yc8OowrKGhCWm9 pAzi/3Tnjf7A9nAq+0NeGhkwybckam9ZpGhMyC1E4bp63g6PCoHjTcqOMVnjYxHz cUNNQUz7oCjW6tjtpvdJQWZuIGiScNuyxrTYKi8SUpQZ0LQo8nU9DujKcwsKsZed gYEIimqOqZnGz1rWs/EP2Y5TSoPVxvnb6nc90gt8kh0nfXYumxKjEmHZ0PB7K97b pioCN/THtkDgdYn8j3gnDXZYYa6JA4fKKOw+S6VZraLoVLeDtLo5zK353Rr3BscI SddxLePp5WclRal+WulLLJs1FeY5PN3ji+mxC3FAG6cvCqIyosyU8HKG79Lhwwl6 7qlaDf27BhK71Sf17jzxtc5OwVTkSsY+9iKzVZAw5tIHSLR+nwhjM2vlAVU+oG2r KAsuVO1CVAqYbeIBJ85R6bPzgRGxQ0Kmkqwxe1QDVhgXl3eC5Ot5N/bOifv7HzV+ m+6W1Wdw6/tUKD5g5c6s2WMijXgTdEnfj7dYXmHHN4q1abAKj0cOVjXtmVb90DHM 5tvfxNurQZCCLo2A88/BYXRd299vBzOy9HAWvMvt5effQfxgFfpC1gc9NkfUTfkA FTOQ96vOpOmAH5uA0Xvm =850Z -----END PGP SIGNATURE----- Merge tag 'mmc-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC updates from Ulf Hansson: "MMC core: - Continue to refactor the mmc block code to prepare for blkmq - Move mmc block debugfs into block module - Next step for eMMC CMDQ by adding a new mmc host interface for it - Move Kconfig option MMC_DEBUG from core to host - Some additional minor improvements MMC host: - Declare structs as const when applicable - Explicitly request exclusive reset control when applicable - Improve some error paths and other various cleanups - sdhci: Preparations to support SDHCI OMAP - sdhci: Improve some PM related code - sdhci: Re-factoring and modernizations - sdhci-xenon: Add runtime PM and system sleep support - sdhci-xenon: Add support for eMMC HS400 Enhanced Strobe - sdhci-cadence: Add system sleep support - sdhci-of-at91: Improve system sleep support - dw_mmc: Add support for Hisilicon hi3660 - sunxi: Add support for A83T eMMC - sunxi: Add support for DDR52 mode - meson-gx: Add support for UHS-I SD-cards - meson-gx: Cleanups and improvements - tmio: Fix CMD12 (STOP) handling - tmio: Cleanups and improvements - renesas_sdhi: Add r8a7743/5 support - renesas-sdhi: Add support for R-Car Gen3 SDHI DMAC - renesas_sdhi: Cleanups and improvements" * tag 'mmc-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (145 commits) mmc: renesas_sdhi: Add r8a7743/5 support mmc: meson-gx: fix __ffsdi2 undefined on arm32 mmc: sdhci-xenon: add runtime pm support and reimplement standby mmc: core: Move mmc_start_areq() declaration mmc: mmci: stop building qcom dml as module mmc: sunxi: Reset the device at probe time clk: sunxi-ng: Provide a default reset hook mmc: meson-gx: rework tuning function mmc: meson-gx: change default tx phase mmc: meson-gx: implement voltage switch callback mmc: meson-gx: use CCF to handle the clock phases mmc: meson-gx: implement card_busy callback mmc: meson-gx: simplify interrupt handler mmc: meson-gx: work around clk-stop issue mmc: meson-gx: fix dual data rate mode frequencies mmc: meson-gx: rework clock init function mmc: meson-gx: rework clk_set function mmc: meson-gx: rework set_ios function mmc: meson-gx: cfg init overwrite values mmc: meson-gx: initialize sane clk default before clock register ... |
||
|
Linus Torvalds
|
a0725ab0c7 |
Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block
Pull block layer updates from Jens Axboe:
"This is the first pull request for 4.14, containing most of the code
changes. It's a quiet series this round, which I think we needed after
the churn of the last few series. This contains:
- Fix for a registration race in loop, from Anton Volkov.
- Overflow complaint fix from Arnd for DAC960.
- Series of drbd changes from the usual suspects.
- Conversion of the stec/skd driver to blk-mq. From Bart.
- A few BFQ improvements/fixes from Paolo.
- CFQ improvement from Ritesh, allowing idling for group idle.
- A few fixes found by Dan's smatch, courtesy of Dan.
- A warning fixup for a race between changing the IO scheduler and
device remova. From David Jeffery.
- A few nbd fixes from Josef.
- Support for cgroup info in blktrace, from Shaohua.
- Also from Shaohua, new features in the null_blk driver to allow it
to actually hold data, among other things.
- Various corner cases and error handling fixes from Weiping Zhang.
- Improvements to the IO stats tracking for blk-mq from me. Can
drastically improve performance for fast devices and/or big
machines.
- Series from Christoph removing bi_bdev as being needed for IO
submission, in preparation for nvme multipathing code.
- Series from Bart, including various cleanups and fixes for switch
fall through case complaints"
* 'for-4.14/block' of git://git.kernel.dk/linux-block: (162 commits)
kernfs: checking for IS_ERR() instead of NULL
drbd: remove BIOSET_NEED_RESCUER flag from drbd_{md_,}io_bio_set
drbd: Fix allyesconfig build, fix recent commit
drbd: switch from kmalloc() to kmalloc_array()
drbd: abort drbd_start_resync if there is no connection
drbd: move global variables to drbd namespace and make some static
drbd: rename "usermode_helper" to "drbd_usermode_helper"
drbd: fix race between handshake and admin disconnect/down
drbd: fix potential deadlock when trying to detach during handshake
drbd: A single dot should be put into a sequence.
drbd: fix rmmod cleanup, remove _all_ debugfs entries
drbd: Use setup_timer() instead of init_timer() to simplify the code.
drbd: fix potential get_ldev/put_ldev refcount imbalance during attach
drbd: new disk-option disable-write-same
drbd: Fix resource role for newly created resources in events2
drbd: mark symbols static where possible
drbd: Send P_NEG_ACK upon write error in protocol != C
drbd: add explicit plugging when submitting batches
drbd: change list_for_each_safe to while(list_first_entry_or_null)
drbd: introduce drbd_recv_header_maybe_unplug
...
|
||
|
Bjorn Helgaas
|
9198407e23 |
Merge branch 'pci/resource' into next
* pci/resource:
microblaze/PCI: Remove pcibios_setup_bus_{self/devices} dead code
ARC: Remove empty kernel/pcibios.c
PCI: Add a generic weak pcibios_align_resource()
PCI: Add a generic weak pcibios_fixup_bus()
|
||
|
Bjorn Helgaas
|
d4fdf844c9 |
Merge branch 'pci/irq-fixups' into next
* pci/irq-fixups: PCI: Inline and remove pcibios_update_irq() PCI: Remove unused pci_fixup_irqs() function sparc/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks unicore32/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks tile/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks MIPS: PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks m68k/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks alpha/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks sh/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks sh/PCI: Remove __init optimisations from IRQ mapping functions/data MIPS: PCI: Fix pcibios_scan_bus() NULL check code path |
||
|
Bjorn Helgaas
|
e9e256dff4 |
Merge branch 'pci/host-vmd' into next
* pci/host-vmd: iommu/vt-d: Prevent VMD child devices from being remapping targets x86/PCI: Use is_vmd() rather than relying on the domain number x86/PCI: Move VMD quirk to x86 fixups MAINTAINERS: Add Jonathan Derrick as VMD maintainer PCI: vmd: Remove IRQ affinity so we can allocate more IRQs PCI: vmd: Free up IRQs on suspend path PCI: vmd: Assign vector zero to all bridges PCI: vmd: Reserve IRQ pre-vector for better affinity |
||
|
Linus Torvalds
|
3ee31b89d9 |
xen: fixes and features for 4.14
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Merge tag 'for-linus-4.14b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
- the new pvcalls backend for routing socket calls from a guest to dom0
- some cleanups of Xen code
- a fix for wrong usage of {get,put}_cpu()
* tag 'for-linus-4.14b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (27 commits)
xen/mmu: set MMU_NORMAL_PT_UPDATE in remap_area_mfn_pte_fn
xen: Don't try to call xen_alloc_p2m_entry() on autotranslating guests
xen/events: events_fifo: Don't use {get,put}_cpu() in xen_evtchn_fifo_init()
xen/pvcalls: use WARN_ON(1) instead of __WARN()
xen: remove not used trace functions
xen: remove unused function xen_set_domain_pte()
xen: remove tests for pvh mode in pure pv paths
xen-platform: constify pci_device_id.
xen: cleanup xen.h
xen: introduce a Kconfig option to enable the pvcalls backend
xen/pvcalls: implement write
xen/pvcalls: implement read
xen/pvcalls: implement the ioworker functions
xen/pvcalls: disconnect and module_exit
xen/pvcalls: implement release command
xen/pvcalls: implement poll command
xen/pvcalls: implement accept command
xen/pvcalls: implement listen command
xen/pvcalls: implement bind command
xen/pvcalls: implement connect command
...
|
||
|
Linus Torvalds
|
bac65d9d87 |
powerpc updates for 4.14
Nothing really major this release, despite quite a lot of activity. Just lots of
things all over the place.
Some things of note include:
- Access via perf to a new type of PMU (IMC) on Power9, which can count both
core events as well as nest unit events (Memory controller etc).
- Optimisations to the radix MMU TLB flushing, mostly to avoid unnecessary Page
Walk Cache (PWC) flushes when the structure of the tree is not changing.
- Reworks/cleanups of do_page_fault() to modernise it and bring it closer to
other architectures where possible.
- Rework of our page table walking so that THP updates only need to send IPIs
to CPUs where the affected mm has run, rather than all CPUs.
- The size of our vmalloc area is increased to 56T on 64-bit hash MMU systems.
This avoids problems with the percpu allocator on systems with very sparse
NUMA layouts.
- STRICT_KERNEL_RWX support on PPC32.
- A new sched domain topology for Power9, to capture the fact that pairs of
cores may share an L2 cache.
- Power9 support for VAS, which is a new mechanism for accessing coprocessors,
and initial support for using it with the NX compression accelerator.
- Major work on the instruction emulation support, adding support for many new
instructions, and reworking it so it can be used to implement the emulation
needed to fixup alignment faults.
- Support for guests under PowerVM to use the Power9 XIVE interrupt controller.
And probably that many things again that are almost as interesting, but I had to
keep the list short. Plus the usual fixes and cleanups as always.
Thanks to:
Alexey Kardashevskiy, Alistair Popple, Andreas Schwab, Aneesh Kumar K.V, Anju
T Sudhakar, Arvind Yadav, Balbir Singh, Benjamin Herrenschmidt, Bhumika Goyal,
Breno Leitao, Bryant G. Ly, Christophe Leroy, Cédric Le Goater, Dan Carpenter,
Dou Liyang, Frederic Barrat, Gautham R. Shenoy, Geliang Tang, Geoff Levand,
Hannes Reinecke, Haren Myneni, Ivan Mikhaylov, John Allen, Julia Lawall, LABBE
Corentin, Laurentiu Tudor, Madhavan Srinivasan, Markus Elfring, Masahiro
Yamada, Matt Brown, Michael Neuling, Murilo Opsfelder Araujo, Nathan Fontenot,
Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Paul Mackerras, Rashmica
Gupta, Rob Herring, Rui Teng, Sam Bobroff, Santosh Sivaraj, Scott Wood,
Shilpasri G Bhat, Sukadev Bhattiprolu, Suraj Jitindar Singh, Tobin C. Harding,
Victor Aoqui.
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Merge tag 'powerpc-4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Nothing really major this release, despite quite a lot of activity.
Just lots of things all over the place.
Some things of note include:
- Access via perf to a new type of PMU (IMC) on Power9, which can
count both core events as well as nest unit events (Memory
controller etc).
- Optimisations to the radix MMU TLB flushing, mostly to avoid
unnecessary Page Walk Cache (PWC) flushes when the structure of the
tree is not changing.
- Reworks/cleanups of do_page_fault() to modernise it and bring it
closer to other architectures where possible.
- Rework of our page table walking so that THP updates only need to
send IPIs to CPUs where the affected mm has run, rather than all
CPUs.
- The size of our vmalloc area is increased to 56T on 64-bit hash MMU
systems. This avoids problems with the percpu allocator on systems
with very sparse NUMA layouts.
- STRICT_KERNEL_RWX support on PPC32.
- A new sched domain topology for Power9, to capture the fact that
pairs of cores may share an L2 cache.
- Power9 support for VAS, which is a new mechanism for accessing
coprocessors, and initial support for using it with the NX
compression accelerator.
- Major work on the instruction emulation support, adding support for
many new instructions, and reworking it so it can be used to
implement the emulation needed to fixup alignment faults.
- Support for guests under PowerVM to use the Power9 XIVE interrupt
controller.
And probably that many things again that are almost as interesting,
but I had to keep the list short. Plus the usual fixes and cleanups as
always.
Thanks to: Alexey Kardashevskiy, Alistair Popple, Andreas Schwab,
Aneesh Kumar K.V, Anju T Sudhakar, Arvind Yadav, Balbir Singh,
Benjamin Herrenschmidt, Bhumika Goyal, Breno Leitao, Bryant G. Ly,
Christophe Leroy, Cédric Le Goater, Dan Carpenter, Dou Liyang,
Frederic Barrat, Gautham R. Shenoy, Geliang Tang, Geoff Levand, Hannes
Reinecke, Haren Myneni, Ivan Mikhaylov, John Allen, Julia Lawall,
LABBE Corentin, Laurentiu Tudor, Madhavan Srinivasan, Markus Elfring,
Masahiro Yamada, Matt Brown, Michael Neuling, Murilo Opsfelder Araujo,
Nathan Fontenot, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran,
Paul Mackerras, Rashmica Gupta, Rob Herring, Rui Teng, Sam Bobroff,
Santosh Sivaraj, Scott Wood, Shilpasri G Bhat, Sukadev Bhattiprolu,
Suraj Jitindar Singh, Tobin C. Harding, Victor Aoqui"
* tag 'powerpc-4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (321 commits)
powerpc/xive: Fix section __init warning
powerpc: Fix kernel crash in emulation of vector loads and stores
powerpc/xive: improve debugging macros
powerpc/xive: add XIVE Exploitation Mode to CAS
powerpc/xive: introduce H_INT_ESB hcall
powerpc/xive: add the HW IRQ number under xive_irq_data
powerpc/xive: introduce xive_esb_write()
powerpc/xive: rename xive_poke_esb() in xive_esb_read()
powerpc/xive: guest exploitation of the XIVE interrupt controller
powerpc/xive: introduce a common routine xive_queue_page_alloc()
powerpc/sstep: Avoid used uninitialized error
axonram: Return directly after a failed kzalloc() in axon_ram_probe()
axonram: Improve a size determination in axon_ram_probe()
axonram: Delete an error message for a failed memory allocation in axon_ram_probe()
powerpc/powernv/npu: Move tlb flush before launching ATSD
powerpc/macintosh: constify wf_sensor_ops structures
powerpc/iommu: Use permission-specific DEVICE_ATTR variants
powerpc/eeh: Delete an error out of memory message at init time
powerpc/mm: Use seq_putc() in two functions
macintosh: Convert to using %pOF instead of full_name
...
|
||
|
Linus Torvalds
|
f92e3da18b |
Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar:
"The main changes in this cycle were:
- Transparently fall back to other poweroff method(s) if EFI poweroff
fails (and returns)
- Use separate PE/COFF section headers for the RX and RW parts of the
ARM stub loader so that the firmware can use strict mapping
permissions
- Add support for requesting the firmware to wipe RAM at warm reboot
- Increase the size of the random seed obtained from UEFI so CRNG
fast init can complete earlier
- Update the EFI framebuffer address if it points to a BAR that gets
moved by the PCI resource allocation code
- Enable "reset attack mitigation" of TPM environments: this is
enabled if the kernel is configured with
CONFIG_RESET_ATTACK_MITIGATION=y.
- Clang related fixes
- Misc cleanups, constification, refactoring, etc"
* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/bgrt: Use efi_mem_type()
efi: Move efi_mem_type() to common code
efi/reboot: Make function pointer orig_pm_power_off static
efi/random: Increase size of firmware supplied randomness
efi/libstub: Enable reset attack mitigation
firmware/efi/esrt: Constify attribute_group structures
firmware/efi: Constify attribute_group structures
firmware/dcdbas: Constify attribute_group structures
arm/efi: Split zImage code and data into separate PE/COFF sections
arm/efi: Replace open coded constants with symbolic ones
arm/efi: Remove pointless dummy .reloc section
arm/efi: Remove forbidden values from the PE/COFF header
drivers/fbdev/efifb: Allow BAR to be moved instead of claiming it
efi/reboot: Fall back to original power-off method if EFI_RESET_SHUTDOWN returns
efi/arm/arm64: Add missing assignment of efi.config_table
efi/libstub/arm64: Set -fpie when building the EFI stub
efi/libstub/arm64: Force 'hidden' visibility for section markers
efi/libstub/arm64: Use hidden attribute for struct screen_info reference
efi/arm: Don't mark ACPI reclaim memory as MEMBLOCK_NOMAP
|
||
|
Radim Krčmář
|
78809a6849 |
Merge branch 'kvm-ppc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
KVM/PPC update for 4.14 There are various minor fixes and cleanups. The only new feature is that we now export information about storage key support to userspace, so it can advertise it to the guest. I have pulled in Michael Ellerman's topic/ppc-kvm branch from the powerpc tree to get a couple of fixes that touch both KVM PPC code and other PPC code. That's why there is some arch/powerpc stuff in the diffstat that isn't arch/powerpc/kvm. |
||
|
Linus Torvalds
|
57e88b43b8 |
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Ingo Molnar: "The main changes include various Hyper-V optimizations such as faster hypercalls and faster/better TLB flushes - and there's also some Intel-MID cleanups" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tracing/hyper-v: Trace hyperv_mmu_flush_tlb_others() x86/hyper-v: Support extended CPU ranges for TLB flush hypercalls x86/platform/intel-mid: Make several arrays static, to make code smaller MAINTAINERS: Add missed file for Hyper-V x86/hyper-v: Use hypercall for remote TLB flush hyper-v: Globalize vp_index x86/hyper-v: Implement rep hypercalls hyper-v: Use fast hypercall for HVCALL_SIGNAL_EVENT x86/hyper-v: Introduce fast hypercall implementation x86/hyper-v: Make hv_do_hypercall() inline x86/hyper-v: Include hyperv/ only when CONFIG_HYPERV is set x86/platform/intel-mid: Make 'bt_sfi_data' const x86/platform/intel-mid: Make IRQ allocation a bit more flexible x86/platform/intel-mid: Group timers callbacks together |
||
|
Radim Krčmář
|
082d3900a4 |
KVM/ARM Changes for v4.14
Two minor cleanups and improvements, a fix for decoding external abort types from guests, and added support for migrating the active priority of interrupts when running a GICv2 guest on a GICv3 host. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJZrsRdAAoJEEtpOizt6ddyoDIH/i94Wc5Iw9mpzi99NXyDGxYb 2kEGg8uRZFuAwK49+aNVEqL7pPymlV3qdl1fdsmWM9ch9D8WOiezx5JgSd3+uriF x2Cc6kxZQJ4/UT3laAZArVcGnQqDHdOrJIsOZ9f+UFRiFazlMVMgAJX7yQwHYiBQ QM/z5BbLSbh+NHAv15utz85JjR8lFL7AIzPemHR6Zh7cr3XmeW3nadaYMuyqjFsZ aYD4S+y/eRw6HkImV/DaaLv/tDrOEU2cQOqi19TvfYpx/XW4uLQA9oxS9Qd9ADZw T8Ha5jGEthy+3mzwEmGFwTVGpbvt3TYavZ743lp230PODYOkfO+ETbIlstuYNb4= =dIG3 -----END PGP SIGNATURE----- Merge tag 'kvm-arm-for-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm KVM/ARM Changes for v4.14 Two minor cleanups and improvements, a fix for decoding external abort types from guests, and added support for migrating the active priority of interrupts when running a GICv2 guest on a GICv3 host. |
||
|
Radim Krčmář
|
6e0ff1b4db |
KVM: s390: Fixes and features for 4.14
- merge of topic branch tlb-flushing from the s390 tree to get the no-dat base features - merge of kvm/master to avoid conflicts with additional sthyi fixes - wire up the no-dat enhancements in KVM - multiple epoch facility (z14 feature) - Configuration z/Architecture Mode - more sthyi fixes - gdb server range checking fix - small code cleanups -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAABAgAGBQJZqQt+AAoJEBF7vIC1phx82jcP/0PgDUFpyaq50R1LhoLoXfsv 55x8hZFJzkBTapv6ckb9MP1J90htbmYXUDbgk/JS7ElenLvLw6r9QenHJnLYRoJ4 s4ApooG5/wpbQWdxfqZaNHZEV1/Fgvv+R348k8cFfhrzJdOd0p7I+qkd5FOX2VTl NGk+cR03yhtPOYeUb90k40k0kGmY7acdnYe2txUoh7qC38vPVwMJA6S01mWbB3sm ApQN9hzGvXhT833dVTNMS33uCds/9nCHtMn0viqTfs9AWKIs62nK4L54c5dgZWpH u7+ji5OUEbV+8QQH5G1OmWUIo3sKO5MVS0P9jbh0bIIdUZvUKdchFP8bQcmde02E IgYgjbgmKc8Zec+Z0PHs5Gy+VbGXpqg0nvwyzK96fh/KM7aepxHUfDOdWWj8qbgI 4sc2fe5JFkP5IldYgJlMPSm4GqLNDkbGFnLralkaqhRvjS1sNjgXxcCclLQQaI5H kMklzkNpMQ9yC7pYLjq7AKOzmMdHqq90rAIq0zQSYQjMoiC2RLYFyjFwsK3KlmeJ GRgYrIZOVkYONZhT4F81piGcuRsbCGSXZ5I5i/QxJ/EgNGO8EcGrrONAk1NW9Dsp q9qu/aKXOzGe57jjP+MonH4bcrHLCmcpkxS9sgiECu0PtutzbGdZPUXA9Pj9YMON 7kQXrwPgEHhn62+l/JdO =N/6G -----END PGP SIGNATURE----- Merge tag 'kvm-s390-next-4.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux KVM: s390: Fixes and features for 4.14 - merge of topic branch tlb-flushing from the s390 tree to get the no-dat base features - merge of kvm/master to avoid conflicts with additional sthyi fixes - wire up the no-dat enhancements in KVM - multiple epoch facility (z14 feature) - Configuration z/Architecture Mode - more sthyi fixes - gdb server range checking fix - small code cleanups |
||
|
Borislav Petkov
|
21d9bb4a05 |
x86/mm: Make the SME mask a u64
The SME encryption mask is for masking 64-bit pagetable entries. It
being an unsigned long works fine on X86_64 but on 32-bit builds in
truncates bits leading to Xen guests crashing very early.
And regardless, the whole SME mask handling shouldnt've leaked into
32-bit because SME is X86_64-only feature. So, first make the mask u64.
And then, add trivial 32-bit versions of the __sme_* macros so that
nothing happens there.
Reported-and-tested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Tested-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Tom Lendacky <Thomas.Lendacky@amd.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas <Thomas.Lendacky@amd.com>
Fixes:
|
||
|
Linus Torvalds
|
d34fc1adf0 |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: - various misc bits - DAX updates - OCFS2 - most of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (119 commits) mm,fork: introduce MADV_WIPEONFORK x86,mpx: make mpx depend on x86-64 to free up VMA flag mm: add /proc/pid/smaps_rollup mm: hugetlb: clear target sub-page last when clearing huge page mm: oom: let oom_reap_task and exit_mmap run concurrently swap: choose swap device according to numa node mm: replace TIF_MEMDIE checks by tsk_is_oom_victim mm, oom: do not rely on TIF_MEMDIE for memory reserves access z3fold: use per-cpu unbuddied lists mm, swap: don't use VMA based swap readahead if HDD is used as swap mm, swap: add sysfs interface for VMA based swap readahead mm, swap: VMA based swap readahead mm, swap: fix swap readahead marking mm, swap: add swap readahead hit statistics mm/vmalloc.c: don't reinvent the wheel but use existing llist API mm/vmstat.c: fix wrong comment selftests/memfd: add memfd_create hugetlbfs selftest mm/shmem: add hugetlbfs support to memfd_create() mm, devm_memremap_pages: use multi-order radix for ZONE_DEVICE lookups mm/vmalloc.c: halve the number of comparisons performed in pcpu_get_vm_areas() ... |
||
|
Andy Lutomirski
|
1c9fe4409c |
x86/mm: Document how CR4.PCIDE restore works
While debugging a problem, I thought that using cr4_set_bits_and_update_boot() to restore CR4.PCIDE would be helpful. It turns out to be counterproductive. Add a comment documenting how this works. Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Andy Lutomirski
|
72c0098d92 |
x86/mm: Reinitialize TLB state on hotplug and resume
When Linux brings a CPU down and back up, it switches to init_mm and then
loads swapper_pg_dir into CR3. With PCID enabled, this has the side effect
of masking off the ASID bits in CR3.
This can result in some confusion in the TLB handling code. If we
bring a CPU down and back up with any ASID other than 0, we end up
with the wrong ASID active on the CPU after resume. This could
cause our internal state to become corrupt, although major
corruption is unlikely because init_mm doesn't have any user pages.
More obviously, if CONFIG_DEBUG_VM=y, we'll trip over an assertion
in the next context switch. The result of *that* is a failure to
resume from suspend with probability 1 - 1/6^(cpus-1).
Fix it by reinitializing cpu_tlbstate on resume and CPU bringup.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Jiri Kosina <jikos@kernel.org>
Fixes:
|
||
|
Rik van Riel
|
d2cd9ede6e |
mm,fork: introduce MADV_WIPEONFORK
Introduce MADV_WIPEONFORK semantics, which result in a VMA being empty
in the child process after fork. This differs from MADV_DONTFORK in one
important way.
If a child process accesses memory that was MADV_WIPEONFORK, it will get
zeroes. The address ranges are still valid, they are just empty.
If a child process accesses memory that was MADV_DONTFORK, it will get a
segmentation fault, since those address ranges are no longer valid in
the child after fork.
Since MADV_DONTFORK also seems to be used to allow very large programs
to fork in systems with strict memory overcommit restrictions, changing
the semantics of MADV_DONTFORK might break existing programs.
MADV_WIPEONFORK only works on private, anonymous VMAs.
The use case is libraries that store or cache information, and want to
know that they need to regenerate it in the child process after fork.
Examples of this would be:
- systemd/pulseaudio API checks (fail after fork) (replacing a getpid
check, which is too slow without a PID cache)
- PKCS#11 API reinitialization check (mandated by specification)
- glibc's upcoming PRNG (reseed after fork)
- OpenSSL PRNG (reseed after fork)
The security benefits of a forking server having a re-inialized PRNG in
every child process are pretty obvious. However, due to libraries
having all kinds of internal state, and programs getting compiled with
many different versions of each library, it is unreasonable to expect
calling programs to re-initialize everything manually after fork.
A further complication is the proliferation of clone flags, programs
bypassing glibc's functions to call clone directly, and programs calling
unshare, causing the glibc pthread_atfork hook to not get called.
It would be better to have the kernel take care of this automatically.
The patch also adds MADV_KEEPONFORK, to undo the effects of a prior
MADV_WIPEONFORK.
This is similar to the OpenBSD minherit syscall with MAP_INHERIT_ZERO:
https://man.openbsd.org/minherit.2
[akpm@linux-foundation.org: numerically order arch/parisc/include/uapi/asm/mman.h #defines]
Link: http://lkml.kernel.org/r/20170811212829.29186-3-riel@redhat.com
Signed-off-by: Rik van Riel <riel@redhat.com>
Reported-by: Florian Weimer <fweimer@redhat.com>
Reported-by: Colm MacCártaigh <colm@allcosts.net>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Kees Cook <keescook@chromium.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Drewry <wad@chromium.org>
Cc: <linux-api@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
|
Rik van Riel
|
df3735c5b4 |
x86,mpx: make mpx depend on x86-64 to free up VMA flag
Patch series "mm,fork,security: introduce MADV_WIPEONFORK", v4.
If a child process accesses memory that was MADV_WIPEONFORK, it will get
zeroes. The address ranges are still valid, they are just empty.
If a child process accesses memory that was MADV_DONTFORK, it will get a
segmentation fault, since those address ranges are no longer valid in
the child after fork.
Since MADV_DONTFORK also seems to be used to allow very large programs
to fork in systems with strict memory overcommit restrictions, changing
the semantics of MADV_DONTFORK might break existing programs.
The use case is libraries that store or cache information, and want to
know that they need to regenerate it in the child process after fork.
Examples of this would be:
- systemd/pulseaudio API checks (fail after fork) (replacing a getpid
check, which is too slow without a PID cache)
- PKCS#11 API reinitialization check (mandated by specification)
- glibc's upcoming PRNG (reseed after fork)
- OpenSSL PRNG (reseed after fork)
The security benefits of a forking server having a re-inialized PRNG in
every child process are pretty obvious. However, due to libraries
having all kinds of internal state, and programs getting compiled with
many different versions of each library, it is unreasonable to expect
calling programs to re-initialize everything manually after fork.
A further complication is the proliferation of clone flags, programs
bypassing glibc's functions to call clone directly, and programs calling
unshare, causing the glibc pthread_atfork hook to not get called.
It would be better to have the kernel take care of this automatically.
The patchset also adds MADV_KEEPONFORK, to undo the effects of a prior
MADV_WIPEONFORK.
This is similar to the OpenBSD minherit syscall with MAP_INHERIT_ZERO:
https://man.openbsd.org/minherit.2
This patch (of 2):
MPX only seems to be available on 64 bit CPUs, starting with Skylake and
Goldmont. Move VM_MPX into the 64 bit only portion of vma->vm_flags, in
order to free up a VMA flag.
Link: http://lkml.kernel.org/r/20170811212829.29186-2-riel@redhat.com
Signed-off-by: Rik van Riel <riel@redhat.com>
Acked-by: Dave Hansen <dave.hansen@intel.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Will Drewry <wad@chromium.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Colm MacCártaigh <colm@allcosts.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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Mike Kravetz
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aafd4562df |
mm: arch: consolidate mmap hugetlb size encodings
A non-default huge page size can be encoded in the flags argument of the mmap system call. The definitions for these encodings are in arch specific header files. However, all architectures use the same values. Consolidate all the definitions in the primary user header file (uapi/linux/mman.h). Include definitions for all known huge page sizes. Use the generic encoding definitions in hugetlb_encode.h as the basis for these definitions. Link: http://lkml.kernel.org/r/1501527386-10736-3-git-send-email-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Dou Liyang
|
f0cd340613 |
metag/numa: remove the unused parent_node() macro
Commit
|
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Linus Torvalds
|
80cee03bf1 |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: "Here is the crypto update for 4.14: API: - Defer scompress scratch buffer allocation to first use. - Add __crypto_xor that takes separte src and dst operands. - Add ahash multiple registration interface. - Revamped aead/skcipher algif code to fix async IO properly. Drivers: - Add non-SIMD fallback code path on ARM for SVE. - Add AMD Security Processor framework for ccp. - Add support for RSA in ccp. - Add XTS-AES-256 support for CCP version 5. - Add support for PRNG in sun4i-ss. - Add support for DPAA2 in caam. - Add ARTPEC crypto support. - Add Freescale RNGC hwrng support. - Add Microchip / Atmel ECC driver. - Add support for STM32 HASH module" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (116 commits) crypto: af_alg - get_page upon reassignment to TX SGL crypto: cavium/nitrox - Fix an error handling path in 'nitrox_probe()' crypto: inside-secure - fix an error handling path in safexcel_probe() crypto: rockchip - Don't dequeue the request when device is busy crypto: cavium - add release_firmware to all return case crypto: sahara - constify platform_device_id MAINTAINERS: Add ARTPEC crypto maintainer crypto: axis - add ARTPEC-6/7 crypto accelerator driver crypto: hash - add crypto_(un)register_ahashes() dt-bindings: crypto: add ARTPEC crypto crypto: algif_aead - fix comment regarding memory layout crypto: ccp - use dma_mapping_error to check map error lib/mpi: fix build with clang crypto: sahara - Remove leftover from previous used spinlock crypto: sahara - Fix dma unmap direction crypto: af_alg - consolidation of duplicate code crypto: caam - Remove unused dentry members crypto: ccp - select CONFIG_CRYPTO_RSA crypto: ccp - avoid uninitialized variable warning crypto: serpent - improve __serpent_setkey with UBSAN ... |
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Linus Torvalds
|
aae3dbb477 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
1) Support ipv6 checksum offload in sunvnet driver, from Shannon
Nelson.
2) Move to RB-tree instead of custom AVL code in inetpeer, from Eric
Dumazet.
3) Allow generic XDP to work on virtual devices, from John Fastabend.
4) Add bpf device maps and XDP_REDIRECT, which can be used to build
arbitrary switching frameworks using XDP. From John Fastabend.
5) Remove UFO offloads from the tree, gave us little other than bugs.
6) Remove the IPSEC flow cache, from Florian Westphal.
7) Support ipv6 route offload in mlxsw driver.
8) Support VF representors in bnxt_en, from Sathya Perla.
9) Add support for forward error correction modes to ethtool, from
Vidya Sagar Ravipati.
10) Add time filter for packet scheduler action dumping, from Jamal Hadi
Salim.
11) Extend the zerocopy sendmsg() used by virtio and tap to regular
sockets via MSG_ZEROCOPY. From Willem de Bruijn.
12) Significantly rework value tracking in the BPF verifier, from Edward
Cree.
13) Add new jump instructions to eBPF, from Daniel Borkmann.
14) Rework rtnetlink plumbing so that operations can be run without
taking the RTNL semaphore. From Florian Westphal.
15) Support XDP in tap driver, from Jason Wang.
16) Add 32-bit eBPF JIT for ARM, from Shubham Bansal.
17) Add Huawei hinic ethernet driver.
18) Allow to report MD5 keys in TCP inet_diag dumps, from Ivan
Delalande.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1780 commits)
i40e: point wb_desc at the nvm_wb_desc during i40e_read_nvm_aq
i40e: avoid NVM acquire deadlock during NVM update
drivers: net: xgene: Remove return statement from void function
drivers: net: xgene: Configure tx/rx delay for ACPI
drivers: net: xgene: Read tx/rx delay for ACPI
rocker: fix kcalloc parameter order
rds: Fix non-atomic operation on shared flag variable
net: sched: don't use GFP_KERNEL under spin lock
vhost_net: correctly check tx avail during rx busy polling
net: mdio-mux: add mdio_mux parameter to mdio_mux_init()
rxrpc: Make service connection lookup always check for retry
net: stmmac: Delete dead code for MDIO registration
gianfar: Fix Tx flow control deactivation
cxgb4: Ignore MPS_TX_INT_CAUSE[Bubble] for T6
cxgb4: Fix pause frame count in t4_get_port_stats
cxgb4: fix memory leak
tun: rename generic_xdp to skb_xdp
tun: reserve extra headroom only when XDP is set
net: dsa: bcm_sf2: Configure IMP port TC2QOS mapping
net: dsa: bcm_sf2: Advertise number of egress queues
...
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Linus Torvalds
|
ec3604c7a5 |
Writeback error handling fixes for v4.14
-----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJZrTy3AAoJEAAOaEEZVoIVaucP/ApBAj2S5wzvlV1u6l8E6ae7 ZeEEZfcWwzRYlKjZAkTWqj9XvGpDGO5gLq4wsZK2edFAq++/MJF8ZVtN4tdZ1kUZ DUvRodtVOrT08Kp9wZXGT7JOFrf6U/6gMcR6p0MuWnHndeKYvlpcFi9NPT4EC9/z Zm9V7gtlPdSOha7eaSjUS0+vLERkxqXLBW3Av9QUOBP/lbI3lqIroGKeHDYnVdya 2P/k5EcRRJMyJP6TqyYxmmJl+UWjJFMLvnlUDBslHnD/u3mIUhw3JLHYBjn5dZRE Xjq56IDPoXDUvzlBhtn/Uqyx+/wtwsNsylpmKv6K5G1JfdeuSsPVsCey+A1cqV64 LpE5896wf9TmnmI9LNyh6vDn925xPSGBiF45UEp5f9aO7jXeY0MaEZ8g+ENqFIDK v4gtZdS9FhYHV+/l4qEwYMKrqSbwKEs1r1FT+f4wnABby1ojfdA57ZPlp5PV2Vjp szTp88Zkb7cMvZwEnWwxWofcJNmgS7uNahvnQF3IJ4ITsioEkuyYR3K4ZQMaaaV9 wCp6G0FhXZaK3OI7o9WiDwaO2elp9Hxc8bnqKpiBbHZkY0NLh7/++5VxpeNbTHFy AGijQiiKGNNyYqNj93wq9jpVdMNjB0pXrHRxfav8v7MtQ+WfbEoAENF4T7hN7iXn UuF6eSWEC5O1UCRUk1A+ =LLY3 -----END PGP SIGNATURE----- Merge tag 'wberr-v4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux Pull writeback error handling updates from Jeff Layton: "This pile continues the work from last cycle on better tracking writeback errors. In v4.13 we added some basic errseq_t infrastructure and converted a few filesystems to use it. This set continues refining that infrastructure, adds documentation, and converts most of the other filesystems to use it. The main exception at this point is the NFS client" * tag 'wberr-v4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux: ecryptfs: convert to file_write_and_wait in ->fsync mm: remove optimizations based on i_size in mapping writeback waits fs: convert a pile of fsync routines to errseq_t based reporting gfs2: convert to errseq_t based writeback error reporting for fsync fs: convert sync_file_range to use errseq_t based error-tracking mm: add file_fdatawait_range and file_write_and_wait fuse: convert to errseq_t based error tracking for fsync mm: consolidate dax / non-dax checks for writeback Documentation: add some docs for errseq_t errseq: rename __errseq_set to errseq_set |
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Matt Redfearn
|
56dfb7001a |
MIPS: Refactor handling of stack pointer in get_frame_info
Commit
|
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Matt Redfearn
|
41885b0212 |
MIPS: Stacktrace: Fix microMIPS stack unwinding on big endian systems
The stack unwinding code uses the mips_instuction union to decode the
instructions it finds. That union uses the __BITFIELD_FIELD macro to
reorder depending on endianness. The stack unwinding code always places
16bit instructions in halfword 1 of the union. This makes the union
accesses correct for little endian systems. Similarly, 32bit
instructions are reordered such that they are correct for little endian
systems. This handling leaves unwinding the stack on big endian systems
broken, as the mips_instruction union will then look for the fields in
the wrong halfword.
To fix this, use a logical shift to place the 16bit instruction into the
correct position in the word field of the union. Use the same shifting
to order the 2 halfwords of 32bit instuctions. Then replace accesses to
the halfword with accesses to the shifted word.
In the case of the ADDIUS5 instruction, switch to using the
mm16_r5_format union member to avoid the need for a 16bit shift.
Fixes:
|
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Matt Redfearn
|
cea8cd498f |
MIPS: microMIPS: Fix decoding of swsp16 instruction
When the immediate encoded in the instruction is accessed, it is sign
extended due to being a signed value being assigned to a signed integer.
The ISA specifies that this operation is an unsigned operation.
The sign extension leads us to incorrectly decode:
801e9c8e: cbf1 sw ra,68(sp)
As having an immediate of 1073741809.
Since the instruction format does not specify signed/unsigned, and this
is currently the only location to use this instuction format, change it
to an unsigned immediate.
Fixes:
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Matt Redfearn
|
a0ae2b0833 |
MIPS: microMIPS: Fix decoding of addiusp instruction
Commit |
||
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Matt Redfearn
|
b332fec048 |
MIPS: microMIPS: Fix detection of addiusp instruction
The addiusp instruction uses the pool16d opcode, with bit 0 of the
immediate set. The test for the addiusp opcode erroneously did a logical
and of the immediate with mm_addiusp_func, which has value 1, so this
test always passes when the immediate is non-zero.
Fix the test by replacing the logical and with a bitwise and.
Fixes:
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||
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Matt Redfearn
|
11887ed172 |
MIPS: Handle non word sized instructions when examining frame
Commit |
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Jonas Gorski
|
a18097b767 |
MIPS: ralink: allow NULL clock for clk_get_rate
Make the behaviour of clk_get_rate consistent with common clk's
clk_get_rate by accepting NULL clocks as parameter. Some device
drivers rely on this, and will cause an OOPS otherwise.
Fixes:
|
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Jonas Gorski
|
386787b1fc |
MIPS: Loongson 2F: allow NULL clock for clk_get_rate
Make the behaviour of clk_get_rate consistent with common clk's
clk_get_rate by accepting NULL clocks as parameter, as some device
drivers rely on this.
Make the behaviour of clk_get_rate consistent with common clk's
clk_get_rate by accepting NULL clocks as parameter. Some device
drivers rely on this, and will cause an OOPS otherwise.
Fixes:
|
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Jonas Gorski
|
1b495faec2 |
MIPS: BCM63XX: allow NULL clock for clk_get_rate
Make the behaviour of clk_get_rate consistent with common clk's
clk_get_rate by accepting NULL clocks as parameter. Some device
drivers rely on this, and will cause an OOPS otherwise.
Fixes:
|
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Jonas Gorski
|
585e0e9d02 |
MIPS: AR7: allow NULL clock for clk_get_rate
Make the behaviour of clk_get_rate consistent with common clk's
clk_get_rate by accepting NULL clocks as parameter. Some device
drivers rely on this, and will cause an OOPS otherwise.
Fixes:
|
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Jonas Gorski
|
eebc6056d3 |
MIPS: BCM63XX: fix ENETDMA_6345_MAXBURST_REG offset
The channels are only 0x40 bytes large, so 0x40 would be the next one's CHANCFG_REG. Also the position makes it clear that this was intended to be 0x04. So clearly a typo. Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: linux-mips@linux-mips.org Cc: bcm-kernel-feedback-list@broadcom.com Patchwork: https://patchwork.linux-mips.org/patch/15316/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> |
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Corey Minyard
|
5b6b084728 |
mips: Save all registers when saving the frame
The MIPS frame save code was just saving a few registers, enough to do a backtrace if every function set up a frame. However, this is not working if you are using DWARF unwinding, because most of the registers are wrong. This was causing kdump backtraces to be short or bogus. So save all the registers. Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/16989/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> |
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Corey Minyard
|
866b6a89c6 |
MIPS: Add DWARF unwinding to assembly
This will allow kdump dumps to work correclty with MIPS and future DWARF unwinding of the stack to give accurate tracebacks. Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/16990/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> |
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Corey Minyard
|
9fef686863 |
MIPS: Make SAVE_SOME more standard
Modify the SAVE_SOME macro to look more like a standard function, doing the arithmetic for the frame on the SP register instead of copying it from K1, and by saving the stored EPC from the RA. This lets the get_frame_info() function process this function like any other. It also remove an instruction or two from the kernel entry, making it more efficient. unwind_stack_by_address() has special handling for the top of the interrupt stack, but without this change unwinding will still fail if you get an interrupt while handling an interrupt and try to do a traceback from the second interrupt. This change modifies the get_saved_sp macro to optionally store the fetched value right into sp and store the old SP value into K0. Then it's just a matter of subtracting the frame from SP and storing the old SP from K0. This required changing the DADDI workaround a bit, since K0 holds the SP, we had to use K1 for AT. But it eliminated some of the special handling for the DADDI workaround. Saving the RA register was moved up to before fetching the CP0_EPC register, so the CP0_EPC register could be stored into RA and the saved. This lets the traceback code know where RA is actually stored. Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/16991/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> |
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Corey Minyard
|
aee16625b1 |
MIPS: Fix issues in backtraces
I saw two problems when doing backtraces: The compiler was putting a "fast return" at the top of some functions, before it set up the frame. The backtrace code would stop when it saw a jump instruction, so it would never get to the stack frame setup and would thus misinterpret it. To fix this, don't look for jump instructions until the frame setup has been seen. The assembly code here is: ffffffff80b885a0 <serial8250_handle_irq>: ffffffff80b885a0: c8a00003 bbit0 a1,0x0,ffffffff80b885b0 <serial8250_handle_irq+0x10> ffffffff80b885a4: 0000102d move v0,zero ffffffff80b885a8: 03e00008 jr ra ffffffff80b885ac: 00000000 nop ffffffff80b885b0: 67bdffd0 daddiu sp,sp,-48 ffffffff80b885b4: ffb00008 sd s0,8(sp) The second problem was the compiler was putting the last instruction of the frame save in the delay slot of the jump instruction. If it saved the RA in there, the backtrace could would miss it and misinterpret the frame. To fix this, make sure to process the instruction after the first jump seen. The assembly code for this is: ffffffff80806fd0 <plat_irq_dispatch>: ffffffff80806fd0: 67bdffd0 daddiu sp,sp,-48 ffffffff80806fd4: ffb30020 sd s3,32(sp) ffffffff80806fd8: 24130018 li s3,24 ffffffff80806fdc: ffb20018 sd s2,24(sp) ffffffff80806fe0: 3c12811c lui s2,0x811c ffffffff80806fe4: ffb10010 sd s1,16(sp) ffffffff80806fe8: 3c11811c lui s1,0x811c ffffffff80806fec: ffb00008 sd s0,8(sp) ffffffff80806ff0: 3c10811c lui s0,0x811c ffffffff80806ff4: 08201c03 j ffffffff8080700c <plat_irq_dispa tch+0x3c> ffffffff80806ff8: ffbf0028 sd ra,40(sp) Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/16992/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> |
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|
Mathieu Malaterre
|
ed32661699 |
MIPS: jz4780: DTS: Probe the jz4740-rtc driver from devicetree
The jz4740-rtc driver supports both jz4740 & jz4780, setup the compatible string to jz4780. Signed-off-by: Mathieu Malaterre <malat@debian.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Paul Cercueil <paul@crapouillou.net> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/17237/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> |
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|
Mathieu Malaterre
|
c76a5ba29c |
MIPS: Ci20: Enable RTC driver
Update the Ci20's defconfig to enable the JZ4780's RTC driver. Signed-off-by: Mathieu Malaterre <malat@debian.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Paul Cercueil <paul@crapouillou.net> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/17236/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> |
||
|
Martin Schwidefsky
|
f28a4b4ddf |
s390/mm: use a single lock for the fields in mm_context_t
The three locks 'lock', 'pgtable_lock' and 'gmap_lock' in the mm_context_t can be reduced to a single lock. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> |
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|
Martin Schwidefsky
|
60f07c8ec5 |
s390/mm: fix race on mm->context.flush_mm
The order in __tlb_flush_mm_lazy is to flush TLB first and then clear the mm->context.flush_mm bit. This can lead to missed flushes as the bit can be set anytime, the order needs to be the other way aronud. But this leads to a different race, __tlb_flush_mm_lazy may be called on two CPUs concurrently. If mm->context.flush_mm is cleared first then another CPU can bypass __tlb_flush_mm_lazy although the first CPU has not done the flush yet. In a virtualized environment the time until the flush is finally completed can be arbitrarily long. Add a spinlock to serialize __tlb_flush_mm_lazy and use the function in finish_arch_post_lock_switch as well. Cc: <stable@vger.kernel.org> Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> |
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|
Martin Schwidefsky
|
b3e5dc45fd |
s390/mm: fix local TLB flushing vs. detach of an mm address space
The local TLB flushing code keeps an additional mask in the mm.context, the cpu_attach_mask. At the time a global flush of an address space is done the cpu_attach_mask is copied to the mm_cpumask in order to avoid future global flushes in case the mm is used by a single CPU only after the flush. Trouble is that the reset of the mm_cpumask is racy against the detach of an mm address space by switch_mm. The current order is first the global TLB flush and then the copy of the cpu_attach_mask to the mm_cpumask. The order needs to be the other way around. Cc: <stable@vger.kernel.org> Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> |
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|
Harald Freudenberger
|
46fde9a9d2 |
s390/zcrypt: externalize AP queue interrupt control
KVM has a need to control the interrupts on real and virtualized AP queue devices. This fix provides a new function to control the interrupt facilities of an AP queue device. Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> |
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|
Harald Freudenberger
|
050349b5b7 |
s390/zcrypt: externalize AP config info query
KVM has a need to fetch the crypto configuration information as it is returned by the PQAP(QCI) instruction. This patch introduces a new API ap_query_configuration() which provides this info in a handy way for the caller. Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> |