When kvm_mmu_get_page() gets a page with unsynced children, the spt
pagetable is unsynchronized with the guest pagetable. But the
guest might not issue a "flush" operation on it when the pagetable
entry is changed from zero or other cases. The hypervisor has the
responsibility to synchronize the pagetables.
KVM behaved as above for many years, But commit 8c8560b833
("KVM: x86/mmu: Use KVM_REQ_TLB_FLUSH_CURRENT for MMU specific flushes")
inadvertently included a line of code to change it without giving any
reason in the changelog. It is clear that the commit's intention was to
change KVM_REQ_TLB_FLUSH -> KVM_REQ_TLB_FLUSH_CURRENT, so we don't
needlessly flush other contexts; however, one of the hunks changed
a nearby KVM_REQ_MMU_SYNC instead. This patch changes it back.
Link: https://lore.kernel.org/lkml/20200320212833.3507-26-sean.j.christopherson@intel.com/
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Message-Id: <20200902135421.31158-1-jiangshanlai@gmail.com>
fixes: 8c8560b833 ("KVM: x86/mmu: Use KVM_REQ_TLB_FLUSH_CURRENT for MMU specific flushes")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
A minor fix for the update of VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL field
in exit_ctls_high.
Fixes: 03a8871add ("KVM: nVMX: Expose load IA32_PERF_GLOBAL_CTRL
VM-{Entry,Exit} control")
Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20200828085622.8365-5-chenyi.qiang@intel.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
when kmalloc() fails in kvm_io_bus_unregister_dev(), before removing
the bus, we should iterate over all other devices linked to it and call
kvm_iodevice_destructor() for them
Fixes: 90db10434b ("KVM: kvm_io_bus_unregister_dev() should never fail")
Cc: stable@vger.kernel.org
Reported-and-tested-by: syzbot+f196caa45793d6374707@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?extid=f196caa45793d6374707
Signed-off-by: Rustam Kovhaev <rkovhaev@gmail.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200907185535.233114-1-rkovhaev@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
check the allocation of per-cpu __pv_cpu_mask. Initialize ops only when
successful.
Signed-off-by: Haiwei Li <lihaiwei@tencent.com>
Message-Id: <d59f05df-e6d3-3d31-a036-cc25a2b2f33f@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When L2 uses PAE, L0 intercepts of L2 writes to CR0/CR3/CR4 call
load_pdptrs to read the possibly updated PDPTEs from the guest
physical address referenced by CR3. It loads them into
vcpu->arch.walk_mmu->pdptrs and sets VCPU_EXREG_PDPTR in
vcpu->arch.regs_dirty.
At the subsequent assumed reentry into L2, the mmu will call
vmx_load_mmu_pgd which calls ept_load_pdptrs. ept_load_pdptrs sees
VCPU_EXREG_PDPTR set in vcpu->arch.regs_dirty and loads
VMCS02.GUEST_PDPTRn from vcpu->arch.walk_mmu->pdptrs[]. This all works
if the L2 CRn write intercept always resumes L2.
The resume path calls vmx_check_nested_events which checks for
exceptions, MTF, and expired VMX preemption timers. If
vmx_check_nested_events finds any of these conditions pending it will
reflect the corresponding exit into L1. Live migration at this point
would also cause a missed immediate reentry into L2.
After L1 exits, vmx_vcpu_run calls vmx_register_cache_reset which
clears VCPU_EXREG_PDPTR in vcpu->arch.regs_dirty. When L2 next
resumes, ept_load_pdptrs finds VCPU_EXREG_PDPTR clear in
vcpu->arch.regs_dirty and does not load VMCS02.GUEST_PDPTRn from
vcpu->arch.walk_mmu->pdptrs[]. prepare_vmcs02 will then load
VMCS02.GUEST_PDPTRn from vmcs12->pdptr0/1/2/3 which contain the stale
values stored at last L2 exit. A repro of this bug showed L2 entering
triple fault immediately due to the bad VMCS02.GUEST_PDPTRn values.
When L2 is in PAE paging mode add a call to ept_load_pdptrs before
leaving L2. This will update VMCS02.GUEST_PDPTRn if they are dirty in
vcpu->arch.walk_mmu->pdptrs[].
Tested:
kvm-unit-tests with new directed test: vmx_mtf_pdpte_test.
Verified that test fails without the fix.
Also ran Google internal VMM with an Ubuntu 16.04 4.4.0-83 guest running a
custom hypervisor with a 32-bit Windows XP L2 guest using PAE. Prior to fix
would repro readily. Ran 14 simultaneous L2s for 140 iterations with no
failures.
Signed-off-by: Peter Shier <pshier@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Message-Id: <20200820230545.2411347-1-pshier@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- Multiple stolen time fixes, with a new capability to match x86
- Fix for hugetlbfs mappings when PUD and PMD are the same level
- Fix for hugetlbfs mappings when PTE mappings are enforced
(dirty logging, for example)
- Fix tracing output of 64bit values
-----BEGIN PGP SIGNATURE-----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=VBrL
-----END PGP SIGNATURE-----
Merge tag 'kvmarm-fixes-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for Linux 5.9, take #1
- Multiple stolen time fixes, with a new capability to match x86
- Fix for hugetlbfs mappings when PUD and PMD are the same level
- Fix for hugetlbfs mappings when PTE mappings are enforced
(dirty logging, for example)
- Fix tracing output of 64bit values
rapidio/xlnx kconfig fix.
core:
- Documentation fix.
i915:
- audio regression fix
virtio:
- Fix double free in virtio.
- Fix virtio unblank.
- Remove output->enabled from virtio, as it should use crtc_state.
sun4i:
- Add missing put_device in sun4i, and other fixes.
- Handle sun4i alpha on lowest plane correctly.
tv200:
- Fix tve200 enable/disable.
ingenic
- Small ingenic fixes.
-----BEGIN PGP SIGNATURE-----
iQIcBAABAgAGBQJfWyCsAAoJEAx081l5xIa+/2YP/ihZgD7tc36zq+ijkUp6jeWX
05xLx/IReF2o4Byqs/MrFYhyO9ZMWTGZ2xzPD9wzg8CZyaO3w07SZpRfnZPlnuQk
Hs9drv+VXrN0kiyHzoc0PW9to1v6LbjPCNt9tBbvgg3QURuPXbHvhnFNKAQlxOva
0cooHL2eg9XXYC5rOnx5jVJEpYZrwrO6qTFUiPRIl54wb5twp16/EUyG5ML/i5Uw
c7ohr1K+LhDDLQegH+7Z0b3LYwolPYlNLr52ytcj0RjXEVsvOPek9FC5VEhpJNST
Rt1k4FYQO7OHsfyYrwtlWTpFqx6EGNQUBLsYmgTaaRZTsgVaJ9A+Cd6119+qj0Zg
pgPIlEAdsTV4v6o0JBCpn29b1qBnBCrHCMvlLLH4xQdGeDPEa1GdF5DPhXpTxljU
1V/He4z/edCWsFbuiVoOEFSkP9BiAmLw+59k7ecF+uyhNQT8pIkjKZy9YS8BwXjM
+LUNDZod9Z0R4FU0QlwnEqVxOcvv5If0/JepAzvmzB/0Fzmo/0TnQirrD4q39zJT
/9ObQONrLnrI8uzSpbaTYk4c1jfbLUgTGve4uGxPv0R9euVWQFDeJNDgQlnDJ7vU
OwRMmqDpaVYusAKsagQILV3DNqdr+SMp/66xXRt4aPOQkT1l1joz7FhGOBXovFK0
+37zbV1+hG4pmBZQrOED
=AdfG
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-2020-09-11' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Regular fixes, not much a major amount. One thing though is Laurent
fixed some Kconfig issues, and I'm carrying the rapidio kconfig change
so the drm one for xlnx driver works. He hadn't got a response from
rapidio maintainers.
Otherwise, virtio, sun4i, tve200, ingenic have some fixes, one audio
fix for i915 and a core docs fix.
kconfig:
- rapidio/xlnx kconfig fix
core:
- Documentation fix
i915:
- audio regression fix
virtio:
- Fix double free in virtio
- Fix virtio unblank
- Remove output->enabled from virtio, as it should use crtc_state
sun4i:
- Add missing put_device in sun4i, and other fixes
- Handle sun4i alpha on lowest plane correctly
tv200:
- Fix tve200 enable/disable
ingenic
- Small ingenic fixes"
* tag 'drm-fixes-2020-09-11' of git://anongit.freedesktop.org/drm/drm:
drm/i915: fix regression leading to display audio probe failure on GLK
drm: xlnx: dpsub: Fix DMADEVICES Kconfig dependency
rapidio: Replace 'select' DMAENGINES 'with depends on'
drm/virtio: drop virtio_gpu_output->enabled
drm/sun4i: backend: Disable alpha on the lowest plane on the A20
drm/sun4i: backend: Support alpha property on lowest plane
drm/sun4i: Fix DE2 YVU handling
drm/tve200: Stabilize enable/disable
dma-buf: fence-chain: Document missing dma_fence_chain_init() parameter in kerneldoc
dma-buf: Fix kerneldoc of dma_buf_set_name()
drm/virtio: fix unblank
Documentation: fix dma-buf.rst underline length warning
drm/sun4i: Fix dsi dcs long write function
drm/ingenic: Fix driver not probing when IPU port is missing
drm/ingenic: Fix leak of device_node pointer
drm/sun4i: add missing put_device() call in sun8i_r40_tcon_tv_set_mux()
drm/virtio: Revert "drm/virtio: Call the right shmem helpers"
A number of driver bug fixes and a few recent regressions:
- Several bug fixes for bnxt_re. Crashing, incorrect data reported,
and corruption on new HW
- Memory leak and crash in rxe
- Fix sysfs corruption in rxe if the netdev name is too long
- Fix a crash on error unwind in the new cq_pool code
- Fix kobject panics in rtrs by working device lifetime properly
- Fix a data corruption bug in iser target related to misaligned buffers
-----BEGIN PGP SIGNATURE-----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=2DDd
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"A number of driver bug fixes and a few recent regressions:
- Several bug fixes for bnxt_re. Crashing, incorrect data reported,
and corruption on new HW
- Memory leak and crash in rxe
- Fix sysfs corruption in rxe if the netdev name is too long
- Fix a crash on error unwind in the new cq_pool code
- Fix kobject panics in rtrs by working device lifetime properly
- Fix a data corruption bug in iser target related to misaligned
buffers"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
IB/isert: Fix unaligned immediate-data handling
RDMA/rtrs-srv: Set .release function for rtrs srv device during device init
RDMA/bnxt_re: Remove set but not used variable 'qplib_ctx'
RDMA/core: Fix reported speed and width
RDMA/core: Fix unsafe linked list traversal after failing to allocate CQ
RDMA/bnxt_re: Remove the qp from list only if the qp destroy succeeds
RDMA/bnxt_re: Fix driver crash on unaligned PSN entry address
RDMA/bnxt_re: Restrict the max_gids to 256
RDMA/bnxt_re: Static NQ depth allocation
RDMA/bnxt_re: Fix the qp table indexing
RDMA/bnxt_re: Do not report transparent vlan from QP1
RDMA/mlx4: Read pkey table length instead of hardcoded value
RDMA/rxe: Fix panic when calling kmem_cache_create()
RDMA/rxe: Fix memleak in rxe_mem_init_user
RDMA/rxe: Fix the parent sysfs read when the interface has 15 chars
RDMA/rtrs-srv: Replace device_register with device_initialize and device_add
Using gcov to collect coverage data for kernels compiled with GCC 10.1
causes random malfunctions and kernel crashes. This is the result of a
changed GCOV_COUNTERS value in GCC 10.1 that causes a mismatch between
the layout of the gcov_info structure created by GCC profiling code and
the related structure used by the kernel.
Fix this by updating the in-kernel GCOV_COUNTERS value. Also re-enable
config GCOV_KERNEL for use with GCC 10.
Reported-by: Colin Ian King <colin.king@canonical.com>
Reported-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Tested-by: Leon Romanovsky <leonro@nvidia.com>
Tested-and-Acked-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* powercap:
powercap: make documentation reflect code
powercap/intel_rapl: add support for AlderLake
powercap/intel_rapl: add support for RocketLake
powercap/intel_rapl: add support for TigerLake Desktop
- Misc code cleanups. Thanks to Colin, Xu and Rikard
- Features for the ASPEED FSI master
* Detect connection type and routing for Tacoma
* Run at full speed (200MHz) by default
* Set bus speed with a parameter
* CFAM reset GPIO
* 23 bit addressing
- Core features
* Disable unused links
* Set LBUS ownership
-----BEGIN PGP SIGNATURE-----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=pl/5
-----END PGP SIGNATURE-----
Merge tag 'fsi-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi into char-misc-next
Joel writes:
FSI changes for 5.10
- Misc code cleanups. Thanks to Colin, Xu and Rikard
- Features for the ASPEED FSI master
* Detect connection type and routing for Tacoma
* Run at full speed (200MHz) by default
* Set bus speed with a parameter
* CFAM reset GPIO
* 23 bit addressing
- Core features
* Disable unused links
* Set LBUS ownership
* tag 'fsi-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi:
fsi: aspeed: Support CFAM reset GPIO
fsi: aspeed: Add module param for bus divisor
fsi: aspeed: Run the bus at maximum speed
fsi: aspeed: Support cabled FSI
dt-bindings: fsi: Document gpios
fsi: scom: Constify scom_ids
fsi: sbefifo: Constify sbefifo_ids
fsi: master: Constify hub_master_ids
fsi: master: Remove link enable read-back
fsi: core: Set slave local bus ownership during init
fsi: core: Disable link when slave init fails
fsi: master: Add boolean parameter to link_enable function
fsi: fsi-occ: fix return value check in occ_probe()
fsi: aspeed: Enable 23-bit addressing
fsi: master-ast-cf: fix spelling mistake "firwmare" -> "firmware"
- Fix double free in virtio.
- Add missing put_device in sun4i, and other fixes.
- Small ingenic fixes.
- Handle sun4i alpha on lowest plane correctly.
- Remove output->enabled from virtio, as it should use crtc_state.
- Fix tve200 enable/disable.
- Documentation fix.
- Fix virtio unblank.
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEuXvWqAysSYEJGuVH/lWMcqZwE8MFAl9Y6koACgkQ/lWMcqZw
E8P5CxAAvH5B60s23LQdi7JWgWY4r560jneCtBtnesOKMan3ckVHZSX1XEsvvodQ
Ihvm8EriajcYDTOSCgXg5CitPpFDD3WaxUPWZ5VNiLnQInncbP0+Scz147/bVyHo
1XoPyLqqjCrUcHEQSxYGZfFtJPEpm4CoRgqHDQk0QAdYtopgLf1ff6Z2gYGUC7kD
8nIOVakRdDlRlhQYIy9AzznUTPJvN4vm0cLmJS4xDlVpVJcLI7X9qiMEF1OsZvhw
x6sH+3uttbQRzMJqARyANbMc0VD3osqwzTnHHehu6xGI03MLZW2NC6+LpQEe2zK1
AST/H8si7OpemXCyztevkqeDXj6jOBNgnIlr5gv2rUSK5Iva7ZKj4P/2xxr6qm4E
7Ip1Qa1WXMMJJiFGddcYZ2fjEpWUPGAmigtZtwVebugmqSgWigphengqhDZb3gMM
IsVABfbAM0DZcV8iVeHYDq5OJmdOD+/qzAKOayaj4Sgq5G7LokkkIuYhtU7i28rQ
Bl8vCR0VprxdyfKweS98PLBpbgo4oSh20zRTqvLtiNbVWZoVhTdladd9hlL2IChg
cx5bOf7fkboX1hTy7vdU16BIuGzEFc38XgexXDYJuvvy/T+GvYDUtw4HL1vJwT79
/Ef6psjt6EqVE4JfTYvwv54Hbz4PrvLRUngZK/vzkzefDygw9Sc=
=pqMB
-----END PGP SIGNATURE-----
Merge tag 'drm-misc-fixes-2020-09-09' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
drm-misc-fixes for v5.9-rc5:
- Fix double free in virtio.
- Add missing put_device in sun4i, and other fixes.
- Small ingenic fixes.
- Handle sun4i alpha on lowest plane correctly.
- Remove output->enabled from virtio, as it should use crtc_state.
- Fix tve200 enable/disable.
- Documentation fix.
- Fix virtio unblank.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/478b49d1-b1b3-c983-7056-8a89249be435@mblankhorst.nl
This introduces some bug fixes including 1) SMR drive fix, 2) infinite loop
when building free node ids, 3) EOF at DIO read.
-----BEGIN PGP SIGNATURE-----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=gbal
-----END PGP SIGNATURE-----
Merge tag 'f2fs-for-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs fixes from Jaegeuk Kim:
"Small bug fixes for:
- SMR drive fix
- infinite loop when building free node ids
- EOF at DIO read"
* tag 'f2fs-for-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
f2fs: Return EOF on unaligned end of file DIO read
f2fs: fix indefinite loop scanning for free nid
f2fs: Fix type of section block count variables
Fix up the documentation of the struct powercap_control_type members
to match the code.
Also fixup stray whitespace.
Signed-off-by: Amit Kucheria <amitk@kernel.org>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Fix kernel-doc warning in <linux/device.h>:
../include/linux/device.h:613: warning: Function parameter or member 'em_pd' not described in 'device'
Fixes: 1bc138c622 ("PM / EM: add support for other devices than CPUs in Energy Model")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add intel_rapl support for the AlderLake platform.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add intel_rapl support for the RocketLake platform.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add intel_rapl support for the TigerLake desktop platform.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The HiKey 970 board is similar to Hikey 960 with regards
to its USB configutation: it also relies on a USB HUB
that is used when DWC3 is at host mode.
However, it requires a few extra DT settings, as it
uses a voltage regulator and GPIO reset pin.
Add support for them.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/62843df9927b4d8dac5dc7c4a189567fa52ab2bb.1599717402.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The HiKey960 has a fairly complex USB configuration due to it
needing to support a USB-C port for host/device mode and multiple
USB-A ports in host mode, all using a single USB controller.
See schematics here:
https://github.com/96boards/documentation/raw/master/consumer/hikey/hikey960/hardware-docs/HiKey960_Schematics.pdf
This driver acts as a usb-role-switch intermediary, intercepting
the role switch notifications from the tcpm code, and passing
them on to the dwc3 core.
In doing so, it also controls the onboard hub and power gpios in
order to properly route the data lines between the USB-C port
and the onboard hub to the USB-A ports.
Signed-off-by: Yu Chen <chenyu56@huawei.com>
[jstultz: Major rework to make the driver a usb-role-switch
intermediary]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/c263f72e1d803c18c45a69ce2c333e79a7ed89ff.1599717402.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Instead of full GNU diff (which smaller boot environments may not have),
use "comm" which is more available.
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: linux-kselftest@vger.kernel.org
Fixes: f131d9edc2 ("selftests/lkdtm: Don't clear dmesg when running tests")
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20200909211700.2399399-1-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 14775b0496 as there
were still some parsing problems with it, and the follow-on patch for
it.
Let's revisit it later, just drop it for now.
Cc: <jbaron@akamai.com>
Cc: Jim Cromie <jim.cromie@gmail.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 14775b0496 ("dyndbg: accept query terms like file=bar and module=foo")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 42f07816ac as it
still causes problems. It will be resolved later, let's revert it so we
can also revert the original patch this was supposed to be helping with.
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Fixes: 42f07816ac ("dyndbg: fix problem parsing format="foo bar"")
Cc: Jim Cromie <jim.cromie@gmail.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
On non-EFI systems, it wasn't possible to test the platform firmware
loader because it will have never set "checked_fw" during __init.
Instead, allow the test code to override this check. Additionally split
the declarations into a private symbol namespace so there is greater
enforcement of the symbol visibility.
Fixes: 548193cba2 ("test_firmware: add support for firmware_request_platform")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20200909225354.3118328-1-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A new bus type "dfl" is introduced for private features which are not
initialized by DFL feature drivers (dfl-fme & dfl-afu drivers). So these
private features could be handled by separate driver modules.
DFL feature drivers (dfl-fme, dfl-port) will create DFL devices on
enumeration. DFL drivers could be registered on this bus to match these
DFL devices. They are matched by dfl type & feature_id.
[mdf@kernel.org: Add missing Documentation part to MAINTAINERS file]
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Acked-by: Wu Hao <hao.wu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Systems have a line for restting the remote CFAM. This is not part of
the FSI master, but is associated with it, so it makes sense to include
it in the master driver.
This exposes a sysfs interface to reset the cfam, abstracting away the
direction and polarity of the GPIO, as well as the timing of the reset
pulse. Userspace will be blocked until the reset pulse is finished.
The reset is hard coded to be in the range of (900, 1000) us. It was
observed with a scope to regularly be just over 1ms.
If the device tree property is not preset the driver will silently
continue.
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20200728025527.174503-6-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
For testing and hardware debugging a user may wish to override the
divisor at runtime. By setting fsi_master_aspeed.bus_div=N, the divisor
will be set to N, if 0 < N <= 0x3ff.
This is a module parameter and not a device tree option as it will only
need to be set when testing or debugging.
Reviewed-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20200728025527.174503-5-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
Testing of Tacoma has shown that the ASPEED master can be run at maximum
speed.
The exception is when wired externally with a cable, in which case we
use a divisor of two to ensure reliable operation.
Reviewed-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20200728025527.174503-4-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
Some FSI capable systems have internal FSI signals, and some have
external cabled FSI. Software can detect which machine this is by
reading a jumper GPIO, and also control which pins the signals are
routed to through a mux GPIO.
This attempts to find the GPIOs at probe time. If they are not present
in the device tree the driver will not error and continue as before.
The mux GPIO is owned by the FSI driver to ensure it is not modified at
runtime. The routing jumper obtained as non-exclusive to allow other
software to inspect it's state.
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20200728025527.174503-3-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
The only usage of scom_ids is to assign its address to the id_table
field in the fsi_driver struct, which is a const pointer, so make it
const to allow the compiler to put it in read-only memory
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
The only usage of sbefifo_ids is to assign its address to the id_table
field in the fsi_driver struct, which is a const pointer, so make it
const to allow the compiler to put it in read-only memory
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
The only usage of hub_master_ids is to assign its address to the
id_table field in the fsi_driver struct, which is a const pointer, so
make it const to allow the compiler to put it in read-only memory.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Both the Aspeed and hub masters read back the link enable register
after enabling the link, but this is unnecessary, so remove it.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
The driver ought to claim local bus ownership of the slave it's
communicating with.
This is for multi-master setups. The slave (in theory) will deny access
to masters who try to access the CFAM address space but who don't "own"
the bus.
As driver doesn't seem to perform any other teardown there is no need to
"un-claim" ownership at teardown. Also I'm not aware of any multi-master
setup using this driver so it shouldn't actually matter. Also, the
hardware doesn't seem to enforce this despite being required in the
specification...
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
In the case that links don't have slaves or fail to be accessed, the
master should disable the link during the scan since it won't be using
the slave.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Add the ability to disable a link with a boolean parameter to the
link_enable function. This is necessary so that the master can disable
links that it isn't using; for example, links to slaves that fail
initialization.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
In case of error, the function platform_device_register_full()
returns ERR_PTR() and never returns NULL. The NULL test in the
return value check should be replaced with IS_ERR().
Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Joel Stanley <joel@jms.id.au>
In order to access more than the second hub link, 23-bit addressing is
required. The core provides the highest two bits of address as the slave
ID to the master.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Acked-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
There is a spelling mistake in a dev_err error message. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Pull crypto fix from Herbert Xu:
"This fixes a regression in padata"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
padata: fix possible padata_works_lock deadlock
The string was incorrectly defined before from least to most specific,
swap the compatible strings accordingly.
Fixes: ff73917d38 ("ARM64: dts: Add QSPI Device Tree node for NS2")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
The string was incorrectly defined before from least to most
specific, swap the compatible strings accordingly.
Fixes: 1c8f406507 ("ARM: dts: BCM5301X: convert to iProc QSPI")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
The string was incorrectly defined before from least to most
specific, swap the compatible strings accordingly.
Fixes: 329f98c197 ("ARM: dts: NSP: Add QSPI nodes to NSPI and bcm958625k DTSes")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
The string was incorrectly defined before from least to most specific,
swap the compatible strings accordingly.
Fixes: b9099ec754 ("ARM: dts: Add Broadcom Hurricane 2 DTS include file")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
The binding is currently incorrectly defining the compatible strings
from least specifice to most specific instead of the converse. Re-order
them from most specific (left) to least specific (right) and fix the
examples as well.
Fixes: 5fc78f4c84 ("spi: Broadcom BRCMSTB, NSP, NS2 SoC bindings")
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Highlights include:
Bugfixes:
- Fix an NFS/RDMA resource leak
- Fix the error handling during delegation recall
- NFSv4.0 needs to return the delegation on a zero-stateid SETATTR
- Stop printk reading past end of string
-----BEGIN PGP SIGNATURE-----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=3fw2
-----END PGP SIGNATURE-----
Merge tag 'nfs-for-5.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
- Fix an NFS/RDMA resource leak
- Fix the error handling during delegation recall
- NFSv4.0 needs to return the delegation on a zero-stateid SETATTR
- Stop printk reading past end of string
* tag 'nfs-for-5.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
SUNRPC: stop printk reading past end of string
NFS: Zero-stateid SETATTR should first return delegation
NFSv4.1 handle ERR_DELAY error reclaiming locking state on delegation recall
xprtrdma: Release in-flight MRs on disconnect
Currently we allocate rx buffers in a single contiguous buffers for
headers (iser and iscsi) and data trailer. This means that most likely the
data starting offset is aligned to 76 bytes (size of both headers).
This worked fine for years, but at some point this broke, resulting in
data corruptions in isert when a command comes with immediate data and the
underlying backend device assumes 512 bytes buffer alignment.
We assume a hard-requirement for all direct I/O buffers to be 512 bytes
aligned. To fix this, we should avoid passing unaligned buffers for I/O.
Instead, we allocate our recv buffers with some extra space such that we
can have the data portion align to 512 byte boundary. This also means that
we cannot reference headers or data using structure but rather
accessors (as they may move based on alignment). Also, get rid of the
wrong __packed annotation from iser_rx_desc as this has only harmful
effects (not aligned to anything).
This affects the rx descriptors for iscsi login and data plane.
Fixes: 3d75ca0ade ("block: introduce multi-page bvec helpers")
Link: https://lore.kernel.org/r/20200904195039.31687-1-sagi@grimberg.me
Reported-by: Stephen Rust <srust@blockbridge.com>
Tested-by: Doug Dumitru <doug@dumitru.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
