All skey functions call skey_check_enable at their start, which checks
if we are in the PSTATE and injects a privileged operation exception
if we are.
Unfortunately they continue processing afterwards and perform the
operation anyhow as skey_check_enable does not deliver an error if the
exception injection was successful.
Let's move the PSTATE check into the skey functions and exit them on
such an occasion, also we now do not enable skey handling anymore in
such a case.
Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Fixes: a7e19ab ("KVM: s390: handle missing storage-key facility")
Cc: <stable@vger.kernel.org> # v4.8+
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Old kernels did not check for zero in the irq_state.flags field and old
QEMUs did not zero the flag/reserved fields when calling
KVM_S390_*_IRQ_STATE. Let's add comments to prevent future uses of
these fields.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Now that the SPDX tag is in all arch/s390/kvm/ files, that identifies
the license in a specific and legally-defined manner. So the extra GPL
text wording can be removed as it is no longer needed at all.
This is done on a quest to remove the 700+ different ways that files in
the kernel describe the GPL license text. And there's unneeded stuff
like the address (sometimes incorrect) for the FSF which is never
needed.
No copyright headers or other non-license-description text was removed.
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Message-Id: <20171124140043.10062-9-gregkh@linuxfoundation.org>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.
Update the arch/s390/kvm/ files with the correct SPDX license
identifier based on the license text in the file itself. The SPDX
identifier is a legally binding shorthand, which can be used instead of
the full boiler plate text.
This work is based on a script and data from Thomas Gleixner, Philippe
Ombredanne, and Kate Stewart.
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Message-Id: <20171124140043.10062-3-gregkh@linuxfoundation.org>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This is to workaround guest driver hang regression after
preemption enable that gvt hasn't enabled handling of that
for guest workload. So in effect this disables preemption
for gvt context now.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
(cherry picked from commit 1603660b33)
We shouldn't mark inactive for vGPU context if preempted,
which would still be re-scheduled later. So keep active state.
Fixes: d6c0511300 ("drm/i915/execlists: Distinguish the incomplete context notifies")
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
(cherry picked from commit da5f99eacc)
mmio_read_from_hw() let vgpu could read hw reg, if vgpu's workload
is running on hw, things is good. Otherwise vgpu will get other
vgpu's reg val, it is unsafe.
This patch limit such hw access to active vgpu. If vgpu isn't
running on hw, the reg read of this vgpu will get the last active
val which saved at schedule_out.
v2: ring timestamp is walking continuously even if the ring is idle.
so read hw directly. (Zhenyu)
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
(cherry picked from commit 295764cd2f)
Since many emulation logic needs to convert the offset of ring registers
into ring id, we export it for other caller which might need it.
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
(cherry picked from commit 62a6a53786)
Our vGPU doesn't have a device ROM, we need follow the PCI spec to
report this info to drivers. Otherwise, we would see below errors.
Inspecting possible rom at 0xfe049000 (vd=8086:1912 bdf=00:10.0)
qemu-system-x86_64: vfio-pci: Cannot read device rom at 00000000-0000-0000-0000-000000000001
Device option ROM contents are probably invalid (check dmesg).
Skip option ROM probe with rombar=0, or load from file with romfile=No option rom signature (got 4860)
I will also send a improvement patch to PCI subsystem related to PCI ROM.
But no idea to omit below error, since no pattern to detect vbios shadow
without touch its content.
0000:00:10.0: Invalid PCI ROM header signature: expecting 0xaa55, got 0x0000
Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
(cherry picked from commit c4270d122c)
Things like this will probably keep showing up for other architectures
and other special cases.
I actually thought we already used %lx for this, and that is indeed
_historically_ the case, but we moved to %p when merging the 32-bit and
64-bit cases as a convenient way to get the formatting right (ie
automatically picking "%08lx" vs "%016lx" based on register size).
So just turn this %p into %px.
Reported-by: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The refcount_t protection on x86 was not intended to use the stricter
GPL export. This adjusts the linkage again to avoid a regression in
the availability of the refcount API.
Reported-by: Dave Airlie <airlied@gmail.com>
Fixes: 7a46ec0e2f ("locking/refcounts, x86/asm: Implement fast refcount overflow protection")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This changes calling conventions (and simplifies the hell out
the callers). New rules: once struct socket had been passed
to sock_alloc_file(), it's been consumed either by struct file
or by sock_release() done by sock_alloc_file(). Either way
the caller should not do sock_release() after that point.
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
simplifies failure exits considerably...
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
1) it's fput() or sock_release(), not both
2) don't do fd_install() until the last failure exit.
3) not a bug per se, but... don't attach socket to struct file
until it's set up.
Take reserving descriptor into the caller, move fd_install() to the
caller, sanitize failure exits and calling conventions.
Cc: stable@vger.kernel.org # v4.6+
Acked-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Whenever the sock object is in DCCP_CLOSED state,
dccp_disconnect() must free dccps_hc_tx_ccid and
dccps_hc_rx_ccid and set to NULL.
Signed-off-by: Mohamed Ghannam <simo.ghannam@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Potapenko reported use of uninitialized memory [1]
This happens when inserting a request socket into TCP ehash,
in __sk_nulls_add_node_rcu(), since sk_reuseport is not initialized.
Bug was added by commit d894ba18d4 ("soreuseport: fix ordering for
mixed v4/v6 sockets")
Note that d296ba60d8 ("soreuseport: Resolve merge conflict for v4/v6
ordering fix") missed the opportunity to get rid of
hlist_nulls_add_tail_rcu() :
Both UDP sockets and TCP/DCCP listeners no longer use
__sk_nulls_add_node_rcu() for their hash insertion.
Since all other sockets have unique 4-tuple, the reuseport status
has no special meaning, so we can always use hlist_nulls_add_head_rcu()
for them and save few cycles/instructions.
[1]
==================================================================
BUG: KMSAN: use of uninitialized memory in inet_ehash_insert+0xd40/0x1050
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.13.0+ #3288
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:16
dump_stack+0x185/0x1d0 lib/dump_stack.c:52
kmsan_report+0x13f/0x1c0 mm/kmsan/kmsan.c:1016
__msan_warning_32+0x69/0xb0 mm/kmsan/kmsan_instr.c:766
__sk_nulls_add_node_rcu ./include/net/sock.h:684
inet_ehash_insert+0xd40/0x1050 net/ipv4/inet_hashtables.c:413
reqsk_queue_hash_req net/ipv4/inet_connection_sock.c:754
inet_csk_reqsk_queue_hash_add+0x1cc/0x300 net/ipv4/inet_connection_sock.c:765
tcp_conn_request+0x31e7/0x36f0 net/ipv4/tcp_input.c:6414
tcp_v4_conn_request+0x16d/0x220 net/ipv4/tcp_ipv4.c:1314
tcp_rcv_state_process+0x42a/0x7210 net/ipv4/tcp_input.c:5917
tcp_v4_do_rcv+0xa6a/0xcd0 net/ipv4/tcp_ipv4.c:1483
tcp_v4_rcv+0x3de0/0x4ab0 net/ipv4/tcp_ipv4.c:1763
ip_local_deliver_finish+0x6bb/0xcb0 net/ipv4/ip_input.c:216
NF_HOOK ./include/linux/netfilter.h:248
ip_local_deliver+0x3fa/0x480 net/ipv4/ip_input.c:257
dst_input ./include/net/dst.h:477
ip_rcv_finish+0x6fb/0x1540 net/ipv4/ip_input.c:397
NF_HOOK ./include/linux/netfilter.h:248
ip_rcv+0x10f6/0x15c0 net/ipv4/ip_input.c:488
__netif_receive_skb_core+0x36f6/0x3f60 net/core/dev.c:4298
__netif_receive_skb net/core/dev.c:4336
netif_receive_skb_internal+0x63c/0x19c0 net/core/dev.c:4497
napi_skb_finish net/core/dev.c:4858
napi_gro_receive+0x629/0xa50 net/core/dev.c:4889
e1000_receive_skb drivers/net/ethernet/intel/e1000/e1000_main.c:4018
e1000_clean_rx_irq+0x1492/0x1d30
drivers/net/ethernet/intel/e1000/e1000_main.c:4474
e1000_clean+0x43aa/0x5970 drivers/net/ethernet/intel/e1000/e1000_main.c:3819
napi_poll net/core/dev.c:5500
net_rx_action+0x73c/0x1820 net/core/dev.c:5566
__do_softirq+0x4b4/0x8dd kernel/softirq.c:284
invoke_softirq kernel/softirq.c:364
irq_exit+0x203/0x240 kernel/softirq.c:405
exiting_irq+0xe/0x10 ./arch/x86/include/asm/apic.h:638
do_IRQ+0x15e/0x1a0 arch/x86/kernel/irq.c:263
common_interrupt+0x86/0x86
Fixes: d894ba18d4 ("soreuseport: fix ordering for mixed v4/v6 sockets")
Fixes: d296ba60d8 ("soreuseport: Resolve merge conflict for v4/v6 ordering fix")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Alexander Potapenko <glider@google.com>
Acked-by: Craig Gallek <kraig@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Subash Abhinov Kasiviswanathan says:
====================
net: qualcomm: rmnet: Fix leaks in failure scenarios
Patch 1 fixes a leak in transmit path where a skb cannot be
transmitted due to insufficient headroom to stamp the map header.
Patch 2 fixes a leak in rmnet_newlink() failure because the
rmnet endpoint was never freed
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
If the rmnet device creation fails in the newlink either while
registering with the physical device or after subsequent
operations, the rmnet endpoint information is never freed.
Fixes: ceed73a2cf ("drivers: net: ethernet: qualcomm: rmnet: Initial implementation")
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
If a skb in transmit path does not have sufficient headroom to add
the map header, the skb is not sent out and is never freed.
Fixes: ceed73a2cf ("drivers: net: ethernet: qualcomm: rmnet: Initial implementation")
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the device descriptor is closed, the `substream->runtime` pointer
is freed. But another thread may be in the ioctl handler, case
SNDRV_CTL_IOCTL_PCM_INFO. This case calls snd_pcm_info_user() which
calls snd_pcm_info() which accesses the now freed `substream->runtime`.
Note: this fixes CVE-2017-0861
Signed-off-by: Robb Glasser <rglasser@google.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
vmx_io_bitmap_b should not be allocated twice.
Fixes: 2361133293 ("KVM: VMX: refactor setup of global page-sized bitmaps")
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
This fixes CVE-2017-1000407.
KVM allows guests to directly access I/O port 0x80 on Intel hosts. If
the guest floods this port with writes it generates exceptions and
instability in the host kernel, leading to a crash. With this change
guest writes to port 0x80 on Intel will behave the same as they
currently behave on AMD systems.
Prevent the flooding by removing the code that sets port 0x80 as a
passthrough port. This is essentially the same as upstream patch
99f85a28a7, except that patch was
for AMD chipsets and this patch is for Intel.
Signed-off-by: Andrew Honig <ahonig@google.com>
Signed-off-by: Jim Mattson <jmattson@google.com>
Fixes: fdef3ad1b3 ("KVM: VMX: Enable io bitmaps to avoid IO port 0x80 VMEXITs")
Cc: <stable@vger.kernel.org>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Now that get_fpu and put_fpu do nothing, because the scheduler will
automatically load and restore the guest FPU context for us while we
are in this code (deep inside the vcpu_run main loop), we can get rid
of the get_fpu and put_fpu hooks.
Signed-off-by: Rik van Riel <riel@redhat.com>
Suggested-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Currently, every time a VCPU is scheduled out, the host kernel will
first save the guest FPU/xstate context, then load the qemu userspace
FPU context, only to then immediately save the qemu userspace FPU
context back to memory. When scheduling in a VCPU, the same extraneous
FPU loads and saves are done.
This could be avoided by moving from a model where the guest FPU is
loaded and stored with preemption disabled, to a model where the
qemu userspace FPU is swapped out for the guest FPU context for
the duration of the KVM_RUN ioctl.
This is done under the VCPU mutex, which is also taken when other
tasks inspect the VCPU FPU context, so the code should already be
safe for this change. That should come as no surprise, given that
s390 already has this optimization.
This can fix a bug where KVM calls get_user_pages while owning the
FPU, and the file system ends up requesting the FPU again:
[258270.527947] __warn+0xcb/0xf0
[258270.527948] warn_slowpath_null+0x1d/0x20
[258270.527951] kernel_fpu_disable+0x3f/0x50
[258270.527953] __kernel_fpu_begin+0x49/0x100
[258270.527955] kernel_fpu_begin+0xe/0x10
[258270.527958] crc32c_pcl_intel_update+0x84/0xb0
[258270.527961] crypto_shash_update+0x3f/0x110
[258270.527968] crc32c+0x63/0x8a [libcrc32c]
[258270.527975] dm_bm_checksum+0x1b/0x20 [dm_persistent_data]
[258270.527978] node_prepare_for_write+0x44/0x70 [dm_persistent_data]
[258270.527985] dm_block_manager_write_callback+0x41/0x50 [dm_persistent_data]
[258270.527988] submit_io+0x170/0x1b0 [dm_bufio]
[258270.527992] __write_dirty_buffer+0x89/0x90 [dm_bufio]
[258270.527994] __make_buffer_clean+0x4f/0x80 [dm_bufio]
[258270.527996] __try_evict_buffer+0x42/0x60 [dm_bufio]
[258270.527998] dm_bufio_shrink_scan+0xc0/0x130 [dm_bufio]
[258270.528002] shrink_slab.part.40+0x1f5/0x420
[258270.528004] shrink_node+0x22c/0x320
[258270.528006] do_try_to_free_pages+0xf5/0x330
[258270.528008] try_to_free_pages+0xe9/0x190
[258270.528009] __alloc_pages_slowpath+0x40f/0xba0
[258270.528011] __alloc_pages_nodemask+0x209/0x260
[258270.528014] alloc_pages_vma+0x1f1/0x250
[258270.528017] do_huge_pmd_anonymous_page+0x123/0x660
[258270.528021] handle_mm_fault+0xfd3/0x1330
[258270.528025] __get_user_pages+0x113/0x640
[258270.528027] get_user_pages+0x4f/0x60
[258270.528063] __gfn_to_pfn_memslot+0x120/0x3f0 [kvm]
[258270.528108] try_async_pf+0x66/0x230 [kvm]
[258270.528135] tdp_page_fault+0x130/0x280 [kvm]
[258270.528149] kvm_mmu_page_fault+0x60/0x120 [kvm]
[258270.528158] handle_ept_violation+0x91/0x170 [kvm_intel]
[258270.528162] vmx_handle_exit+0x1ca/0x1400 [kvm_intel]
No performance changes were detected in quick ping-pong tests on
my 4 socket system, which is expected since an FPU+xstate load is
on the order of 0.1us, while ping-ponging between CPUs is on the
order of 20us, and somewhat noisy.
Cc: stable@vger.kernel.org
Signed-off-by: Rik van Riel <riel@redhat.com>
Suggested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[Fixed a bug where reset_vcpu called put_fpu without preceding load_fpu,
which happened inside from KVM_CREATE_VCPU ioctl. - Radim]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Since commit 3b4477d2dc ("VSOCK: use TCP
state constants for sk_state") VSOCK has used TCP_* constants for
sk_state.
Commit b4562ca792 ("hv_sock: add locking
in the open/close/release code paths") reintroduced the SS_DISCONNECTING
constant.
This patch replaces the old SS_DISCONNECTING with the new TCP_CLOSING
constant.
CC: Dexuan Cui <decui@microsoft.com>
CC: Cathy Avery <cavery@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the function tipc_accept_from_sock() fails to create an instance of
struct tipc_subscriber it omits to free the already created instance of
struct tipc_conn instance before it returns.
We fix that with this commit.
Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Petazzoni says:
====================
net: sh_eth: DMA mapping API fixes
Here are two patches that fix how the sh_eth driver is using the DMA
mapping API: a bogus struct device is used in some places, or a NULL
struct device is used.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Using NULL as argument for the DMA mapping API is bogus, as the DMA
mapping API may use information from the "struct device" to perform
the DMA mapping operation. Therefore, pass the appropriate "struct
device".
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are two types of "struct device": the one representing the
physical device on its physical bus (platform, SPI, PCI, etc.), and
the one representing the logical device in its device class (net,
etc.).
The DMA mapping API expects to receive as argument a "struct device"
representing the physical device, as the "struct device" contains
information about the bus that the DMA API needs.
However, the sh_eth driver mistakenly uses the "struct device"
representing the logical device (embedded in "struct net_device")
rather than the "struct device" representing the physical device on
its bus.
This commit fixes that by adjusting all calls to the DMA mapping API.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nogah Frankel says:
====================
RED qdisc fixes
Add some input validation checks to RED qdisc.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Check the qmin & qmax values doesn't overflow for the given Wlog value.
Check that qmin <= qmax.
Fixes: a783474591 ("[PKT_SCHED]: Generic RED layer")
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Do not allow delta value to be zero since it is used as a divisor.
Fixes: 8af2a218de ("sch_red: Adaptative RED AQM")
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When we detect consecutive allocation of pages swap them to avoid
accidentally freeing them as huge page.
v2: use swap
v3: check if it's really the first allocated page
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Roger He <Hongbo.He@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
e.g. shrink reqeust is less than 512, the logic will skip huge pool
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
to indicate page order for each element in the pool
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
We have a bunch of fixes for aacraid, a set of coherency fixes that
only affect non-coherent platforms and one coccinelle detected null
check after use.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"A bunch of fixes for aacraid, a set of coherency fixes that only
affect non-coherent platforms and one coccinelle detected null check
after use"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: libsas: align sata_device's rps_resp on a cacheline
scsi: use dma_get_cache_alignment() as minimum DMA alignment
scsi: dma-mapping: always provide dma_get_cache_alignment
scsi: ufs: ufshcd: fix potential NULL pointer dereference in ufshcd_config_vreg
scsi: aacraid: Prevent crash in case of free interrupt during scsi EH path
scsi: aacraid: Perform initialization reset only once
scsi: aacraid: Check for PCI state of device in a generic way
fix for a regression in iWarp if SELinux is enabled, a fix for a compilation
regression introduced in this merge window, and one obscure kconfig
combination that oops's the kernel.
For drivers, we have hns fixes needed to make their devices work on certain
ARM IOMMU configurations, a stack data leak for hfi1, and various testing
discovered -rc bug fixes for i40iw.
This cycle we pushed back on the driver maintainers to have better commit
messages for -rc material.
You may need to pull my latest PGP key from the GPG key servers for this, I am
not certain if the subkey update will make it to kernel.org's WKD before you
need it.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"Here is the first rc pull request for RDMA. This includes an important
core fix for a regression in iWarp if SELinux is enabled, a fix for a
compilation regression introduced in this merge window, and one
obscure kconfig combination that oops's the kernel.
For drivers, we have hns fixes needed to make their devices work on
certain ARM IOMMU configurations, a stack data leak for hfi1, and
various testing discovered -rc bug fixes for i40iw.
This cycle we pushed back on the driver maintainers to have better
commit messages for -rc material"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
IB/core: Only enforce security for InfiniBand
RDMA/hns: Get rid of page operation after dma_alloc_coherent
RDMA/hns: Get rid of virt_to_page and vmap calls after dma_alloc_coherent
RDMA/hns: Fix the issue of IOVA not page continuous in hip08
IB/core: Init subsys if compiled to vmlinuz-core
RDMA/cma: Make sure that PSN is not over max allowed
i40iw: Notify user of established connection after QP in RTS
i40iw: Move MPA request event for loopback after connect
i40iw: Correct ARP index mask
i40iw: Do not free sqbuf when event is I40IW_TIMER_TYPE_CLOSE
i40iw: Allocate a sdbuf per CQP WQE
IB: INFINIBAND should depend on HAS_DMA
IB/hfi1: Initialize bth1 in 16B rc ack builder
Here are some small misc driver fixes for 4.15-rc3 to resolve reported
issues. Specifically these are:
- binder fix for a memory leak
- vpd driver fixes for a number of reported problems
- hyperv driver fix for memory accesses where it shouldn't be.
All of these have been in linux-next for a while. There's also one more
MAINTAINERS file update that came in today to get the Android
developer's emails correct, which is also in this pull request, that was
not in linux-next, but should not be an issue.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fixes from Greg KH:
"Here are some small misc driver fixes for 4.15-rc3 to resolve reported
issues. Specifically these are:
- binder fix for a memory leak
- vpd driver fixes for a number of reported problems
- hyperv driver fix for memory accesses where it shouldn't be.
All of these have been in linux-next for a while. There's also one
more MAINTAINERS file update that came in today to get the Android
developer's emails correct, which is also in this pull request, that
was not in linux-next, but should not be an issue"
* tag 'char-misc-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
MAINTAINERS: update Android driver maintainers.
firmware: vpd: Fix platform driver and device registration/unregistration
firmware: vpd: Tie firmware kobject to device lifetime
firmware: vpd: Destroy vpd sections in remove function
hv: kvp: Avoid reading past allocated blocks from KVP file
Drivers: hv: vmbus: Fix a rescind issue
ANDROID: binder: fix transaction leak.
Here are 3 small fixes for some reported issues:
- a debugfs build error that lots of people have reported
- a Kconfig help text cleanup now that the firmware is not in
the kernel tree
- a isa bus bug fix for a reported issue that has been there
since 2.6.18.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are 3 small fixes for some reported issues:
- a debugfs build error that lots of people have reported
- a Kconfig help text cleanup now that the firmware is not in the
kernel tree
- an ISA bus bug fix for a reported issue that has been there since
2.6.18.
All of these have been in linux-next with no reported issues"
* tag 'driver-core-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
firmware: cleanup FIRMWARE_IN_KERNEL message
isa: Prevent NULL dereference in isa_bus driver callbacks
debugfs: fix debugfs_real_fops() build error
Here are a number of small staging and iio driver fixes for reported
issues for 4.15-rc3. Nothing major here, the majority is IIO issues,
like normal, but there are also some small bugfixes for a few staging
drivers as well.
Full details are in the shortlog.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and iio driver fixes from Greg KH:
"Here are a number of small staging and iio driver fixes for reported
issues for 4.15-rc3. Nothing major here, the majority is IIO issues,
like normal, but there are also some small bugfixes for a few staging
drivers as well.
Full details are in the shortlog.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
iio: stm32: fix adc/trigger link error
iio: health: max30102: Temperature should be in milli Celsius
iio: fix kernel-doc build errors
iio: adc: meson-saradc: Meson8 and Meson8b do not have REG11 and REG13
iio: adc: meson-saradc: initialize the bandgap correctly on older SoCs
iio: adc: meson-saradc: fix the bit_idx of the adc_en clock
iio: proximity: sx9500: Assign interrupt from GpioIo()
iio: adc: cpcap: fix incorrect validation
staging: octeon-usb: use __delay() instead of cvmx_wait()
staging: rtl8188eu: Fix incorrect response to SIOCGIWESSID
staging: ccree: fix leak of import() after init()
staging: comedi: ni_atmio: fix license warning.
Here are some small serdev and serial fixes for 4.15-rc3. They resolve
some reported problems:
- a number of serdev fixes to resolve crashes
- MIPS build fixes for their serial port
- a new 8250 device id
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are some small serdev and serial fixes for 4.15-rc3. They resolve
some reported problems:
- a number of serdev fixes to resolve crashes
- MIPS build fixes for their serial port
- a new 8250 device id
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
MIPS: Add custom serial.h with BASE_BAUD override for generic kernel
serdev: ttyport: fix tty locking in close
serdev: ttyport: fix NULL-deref on hangup
serdev: fix receive_buf return value when no callback
serdev: ttyport: add missing receive_buf sanity checks
serial: 8250_early: Only set divisor if valid clk & baud
serial: 8250_pci: Add Amazon PCI serial device ID
Fixes:
- A number of issues in the vgic discovered using SMATCH
- A bit one-off calculation in out stage base address mask (32-bit and
64-bit)
- Fixes to single-step debugging instructions that trap for other
reasons such as MMMIO aborts
- Printing unavailable hyp mode as error
- Potential spinlock deadlock in the vgic
- Avoid calling vgic vcpu free more than once
- Broken bit calculation for big endian systems
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Merge tag 'kvm-arm-fixes-for-v4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm
KVM/ARM Fixes for v4.15.
Fixes:
- A number of issues in the vgic discovered using SMATCH
- A bit one-off calculation in out stage base address mask (32-bit and
64-bit)
- Fixes to single-step debugging instructions that trap for other
reasons such as MMMIO aborts
- Printing unavailable hyp mode as error
- Potential spinlock deadlock in the vgic
- Avoid calling vgic vcpu free more than once
- Broken bit calculation for big endian systems
Here are a few minor USB fixes for 4.15-rc3.
The largest here is the Kconfig text and configuration changes for the
USB TypeC build options that you reported during the -rc1 merge window.
The others are all just small fixes for reported issues, as well as some
new device ids.
The most "interesting" of anything here is the usbip fixes as it seems
lots of people are starting to pay attention to that driver at the
moment. These fixes should resolve all of the reported problems as of
now.
Of course there are the usual xhci and gadget fixes as well, can't go a
pull request without those...
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a few minor USB fixes for 4.15-rc3.
The largest here is the Kconfig text and configuration changes for the
USB TypeC build options that you reported during the -rc1 merge
window. The others are all just small fixes for reported issues, as
well as some new device ids.
The most "interesting" of anything here is the usbip fixes as it seems
lots of people are starting to pay attention to that driver at the
moment. These fixes should resolve all of the reported problems as of
now.
Of course there are the usual xhci and gadget fixes as well, can't go
a pull request without those...
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (22 commits)
usb: xhci: fix panic in xhci_free_virt_devices_depth_first
xhci: Don't show incorrect WARN message about events for empty rings
usbip: fix usbip attach to find a port that matches the requested speed
usbip: Fix USB device hang due to wrong enabling of scatter-gather
uas: Always apply US_FL_NO_ATA_1X quirk to Seagate devices
usb: quirks: Add no-lpm quirk for KY-688 USB 3.1 Type-C Hub
usb: build drivers/usb/common/ when USB_SUPPORT is set
usb: hub: Cycle HUB power when initialization fails
USB: core: Add type-specific length check of BOS descriptors
usb: host: fix incorrect updating of offset
USB: ulpi: fix bus-node lookup
USB: usbfs: Filter flags passed in from user space
usb: add user selectable option for the whole USB Type-C Support
usb: f_fs: Force Reserved1=1 in OS_DESC_EXT_COMPAT
usb: gadget: core: Fix ->udc_set_speed() speed handling
usb: gadget: allow to enable legacy drivers without USB_ETH
usb: gadget: udc: renesas_usb3: fix number of the pipes
usb: gadget: don't dereference g until after it has been null checked
USB: serial: usb_debug: add new USB device id
usb: bdc: fix platform_no_drv_owner.cocci warnings
...
According to LS1021A RM, the value of PAL can be set so that the start of the
IP header in the receive data buffer is aligned to a 32-bit boundary. Normally,
setting PAL = 2 provides minimal padding to ensure such alignment of the IP
header.
However every incoming packet's 8-byte time stamp will be inserted into the
packet data buffer as padding alignment bytes when hardware time stamping is
enabled.
So we set the padding 8+2 here to avoid the flooded alignment faults:
root@128:~# cat /proc/cpu/alignment
User: 0
System: 17539 (inet_gro_receive+0x114/0x2c0)
Skipped: 0
Half: 0
Word: 0
DWord: 0
Multi: 17539
User faults: 2 (fixup)
Also shown when exception report enablement
CPU: 0 PID: 161 Comm: irq/66-eth1_g0_ Not tainted 4.1.21-rt13-WR8.0.0.0_preempt-rt #16
Hardware name: Freescale LS1021A
[<8001b420>] (unwind_backtrace) from [<8001476c>] (show_stack+0x20/0x24)
[<8001476c>] (show_stack) from [<807cfb48>] (dump_stack+0x94/0xac)
[<807cfb48>] (dump_stack) from [<80025d70>] (do_alignment+0x720/0x958)
[<80025d70>] (do_alignment) from [<80009224>] (do_DataAbort+0x40/0xbc)
[<80009224>] (do_DataAbort) from [<80015398>] (__dabt_svc+0x38/0x60)
Exception stack(0x86ad1cc0 to 0x86ad1d08)
1cc0: f9b3e080 86b3d072 2d78d287 00000000 866816c0 86b3d05e 86e785d0 00000000
1ce0: 00000011 0000000e 80840ab0 86ad1d3c 86ad1d08 86ad1d08 806d7fc0 806d806c
1d00: 40070013 ffffffff
[<80015398>] (__dabt_svc) from [<806d806c>] (inet_gro_receive+0x114/0x2c0)
[<806d806c>] (inet_gro_receive) from [<80660eec>] (dev_gro_receive+0x21c/0x3c0)
[<80660eec>] (dev_gro_receive) from [<8066133c>] (napi_gro_receive+0x44/0x17c)
[<8066133c>] (napi_gro_receive) from [<804f0538>] (gfar_clean_rx_ring+0x39c/0x7d4)
[<804f0538>] (gfar_clean_rx_ring) from [<804f0bf4>] (gfar_poll_rx_sq+0x58/0xe0)
[<804f0bf4>] (gfar_poll_rx_sq) from [<80660b10>] (net_rx_action+0x27c/0x43c)
[<80660b10>] (net_rx_action) from [<80033638>] (do_current_softirqs+0x1e0/0x3dc)
[<80033638>] (do_current_softirqs) from [<800338c4>] (__local_bh_enable+0x90/0xa8)
[<800338c4>] (__local_bh_enable) from [<8008025c>] (irq_forced_thread_fn+0x70/0x84)
[<8008025c>] (irq_forced_thread_fn) from [<800805e8>] (irq_thread+0x16c/0x244)
[<800805e8>] (irq_thread) from [<8004e490>] (kthread+0xe8/0x104)
[<8004e490>] (kthread) from [<8000fda8>] (ret_from_fork+0x14/0x2c)
Signed-off-by: Zumeng Chen <zumeng.chen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Fix the UART2 RTS pin mode on Intel Denverton.
- Fix the direction_output() behaviour on the Armada 37xx.
- Fix the groups selection per-SoC on the Gemini.
- Fix the interrupt pin bank on the Sunxi A80.
- Fix the UART mux on the Sunxi A64.
- Disable the strict mode on the Sunxi H5 driver.
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=/auO
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Merge tag 'pinctrl-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"As with GPIO not much action in pin control. All are driver fixes:
- fix the UART2 RTS pin mode on Intel Denverton
- fix the direction_output() behaviour on the Armada 37xx
- fix the groups selection per-SoC on the Gemini
- fix the interrupt pin bank on the Sunxi A80
- fix the UART mux on the Sunxi A64
- disable the strict mode on the Sunxi H5 driver"
* tag 'pinctrl-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: sunxi: Disable strict mode for H5 driver
pinctrl: sunxi: Fix A64 UART mux value
pinctrl: sunxi: Fix A80 interrupt pin bank
pinctrl: gemini: Fix usage of 3512 groups
pinctrl: armada-37xx: Fix direction_output() callback behavior
pinctrl: denverton: Fix UART2 RTS pin mode
