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Merge tag 'io_uring-6.14-20250131' of git://git.kernel.dk/linux
Pull more io_uring updates from Jens Axboe:
- Series cleaning up the alloc cache changes from this merge window,
and then another series on top making it better yet.
This also solves an issue with KASAN_EXTRA_INFO, by making io_uring
resilient to KASAN using parts of the freed struct for storage
- Cleanups and simplications to buffer cloning and io resource node
management
- Fix an issue introduced in this merge window where READ/WRITE_ONCE
was used on an atomic_t, which made some archs complain
- Fix for an errant connect retry when the socket has been shut down
- Fix for multishot and provided buffers
* tag 'io_uring-6.14-20250131' of git://git.kernel.dk/linux:
io_uring/net: don't retry connect operation on EPOLLERR
io_uring/rw: simplify io_rw_recycle()
io_uring: remove !KASAN guards from cache free
io_uring/net: extract io_send_select_buffer()
io_uring/net: clean io_msg_copy_hdr()
io_uring/net: make io_net_vec_assign() return void
io_uring: add alloc_cache.c
io_uring: dont ifdef io_alloc_cache_kasan()
io_uring: include all deps for alloc_cache.h
io_uring: fix multishots with selected buffers
io_uring/register: use atomic_read/write for sq_flags migration
io_uring/alloc_cache: get rid of _nocache() helper
io_uring: get rid of alloc cache init_once handling
io_uring/uring_cmd: cleanup struct io_uring_cmd_data layout
io_uring/uring_cmd: use cached cmd_op in io_uring_cmd_sock()
io_uring/msg_ring: don't leave potentially dangling ->tctx pointer
io_uring/rsrc: Move lockdep assert from io_free_rsrc_node() to caller
io_uring/rsrc: remove unused parameter ctx for io_rsrc_node_alloc()
io_uring: clean up io_uring_register_get_file()
io_uring/rsrc: Simplify buffer cloning by locking both rings
Since commit bede169618 ("kbuild: enable objtool for *.mod.o and
additional kernel objects"), Clang LTO builds do not perform any
optimizations when CONFIG_OBJTOOL is disabled (e.g., for ARCH=arm64).
This is because every LLVM bitcode file is immediately converted to
ELF format before the object files are linked together.
This commit fixes the breakage.
Fixes: bede169618 ("kbuild: enable objtool for *.mod.o and additional kernel objects")
Reported-by: Yonghong Song <yonghong.song@linux.dev>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Yonghong Song <yonghong.song@linux.dev>
Due to the fact that runtime const ELF sections are named without a
leading period or double underscore, the RSTRIP logic that removes the
static RELA sections from vmlinux fails to identify them. This results
in a situation like below, where some sections that were supposed to get
removed are left behind.
[Nr] Name Type Address Off Size ES Flg Lk Inf Al
[58] runtime_shift_d_hash_shift PROGBITS ffffffff83500f50 2900f50 000014 00 A 0 0 1
[59] .relaruntime_shift_d_hash_shift RELA 0000000000000000 55b6f00 000078 18 I 70 58 8
[60] runtime_ptr_dentry_hashtable PROGBITS ffffffff83500f68 2900f68 000014 00 A 0 0 1
[61] .relaruntime_ptr_dentry_hashtable RELA 0000000000000000 55b6f78 000078 18 I 70 60 8
[62] runtime_ptr_USER_PTR_MAX PROGBITS ffffffff83500f80 2900f80 000238 00 A 0 0 1
[63] .relaruntime_ptr_USER_PTR_MAX RELA 0000000000000000 55b6ff0 000d50 18 I 70 62 8
So tweak the match expression to strip all sections starting with .rel.
While at it, consolidate the logic used by RISC-V, s390 and x86 into a
single shared Makefile library command.
Link: https://lore.kernel.org/all/CAHk-=wjk3ynjomNvFN8jf9A1k=qSc=JFF591W00uXj-qqNUxPQ@mail.gmail.com/
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Charlie Jenkins <charlie@rivosinc.com>
Tested-by: Charlie Jenkins <charlie@rivosinc.com>
Tested-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
- Add ATA_QUIRK_NOLPM for Samsung SSD 870 QVO drives (Daniel)
- Ensure that PIO transfers using libata-sff cannot write outside
the allocated buffer (me)
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Merge tag 'ata-6.14-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull more ata updates from Niklas Cassel:
- Add ATA_QUIRK_NOLPM for Samsung SSD 870 QVO drives (Daniel)
- Ensure that PIO transfers using libata-sff cannot write outside the
allocated buffer (me)
* tag 'ata-6.14-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata-sff: Ensure that we cannot write outside the allocated buffer
ata: libata-core: Add ATA_QUIRK_NOLPM for Samsung SSD 870 QVO drives
As SMB protocol distinguish between symlink to directory and symlink to
file, add some mechanism to disallow resolving incompatible types.
When SMB symlink is of the directory type, ensure that its target path ends
with slash. This forces Linux to not allow resolving such symlink to file.
And when SMB symlink is of the file type and its target path ends with
slash then returns an error as such symlink is unresolvable. Such symlink
always points to invalid location as file cannot end with slash.
As POSIX server does not distinguish between symlinks to file and symlink
directory, do not apply this change for symlinks from POSIX SMB server. For
POSIX SMB servers, this change does nothing.
This mimics Windows behavior of native SMB symlinks.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This change implements support for creating new symlink in WSL-style by
Linux cifs client when -o reparse=wsl mount option is specified. WSL-style
symlink uses reparse point with tag IO_REPARSE_TAG_LX_SYMLINK and symlink
target location is stored in reparse buffer in UTF-8 encoding prefixed by
32-bit flags. Flags bits are unknown, but it was observed that WSL always
sets flags to value 0x02000000. Do same in Linux cifs client.
New symlinks would be created in WSL-style only in case the mount option
-o reparse=wsl is specified, which is not by default. So default CIFS
mounts are not affected by this change.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
There are now more servers which advertise support for IAKerb (passthrough
Kerberos authentication via proxy). IAKerb is a public extension industry
standard Kerberos protocol that allows a client without line-of-sight
to a Domain Controller to authenticate. There can be cases where we
would fail to mount if the server only advertises the OID for IAKerb
in SPNEGO/GSSAPI. Add code to allow us to still upcall to userspace
in these cases to obtain the Kerberos ticket.
Signed-off-by: Steve French <stfrench@microsoft.com>
struct FILE_ALL_INFO for level 263 (0x107) used by QPathInfo does not have
any IndexNumber, AccessFlags, IndexNumber1, CurrentByteOffset, Mode or
AlignmentRequirement members. So remove all of them.
Also adjust code in move_cifs_info_to_smb2() function which converts struct
FILE_ALL_INFO to struct smb2_file_all_info.
Fixed content of struct FILE_ALL_INFO was verified that is correct against:
* [MS-CIFS] section 2.2.8.3.10 SMB_QUERY_FILE_ALL_INFO
* Samba server implementation of trans2 query file/path for level 263
* Packet structure tests against Windows SMB servers
This change fixes CIFSSMBQFileInfo() and CIFSSMBQPathInfo() functions which
directly copy received FILE_ALL_INFO network buffers into kernel structures
of FILE_ALL_INFO type.
struct FILE_ALL_INFO is the response structure returned by the SMB server.
So the incorrect definition of this structure can lead to returning bogus
information in stat() call.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
CIFS client is currently able to parse NFS-style symlinks, but is not able
to create them. This functionality is useful when the mounted SMB share is
used also by Windows NFS server (on Windows Server 2012 or new). It allows
interop of symlinks between SMB share mounted by Linux CIFS client and same
export from Windows NFS server mounted by some NFS client.
New symlinks would be created in NFS-style only in case the mount option
-o reparse=nfs is specified, which is not by default. So default CIFS
mounts are not affected by this change.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Native Windows sockets created by WinSock on Windows 10 April 2018 Update
(version 1803) or Windows Server 2019 (version 1809) or later versions is
reparse point with IO_REPARSE_TAG_AF_UNIX tag, with empty reparse point
data buffer and without any EAs.
Create AF_UNIX sockets in this native format if -o nonativesocket was not
specified.
This change makes AF_UNIX sockets created by Linux CIFS client compatible
with AF_UNIX sockets created by Windows applications on NTFS volumes.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
- The biggest changes are the TLB flushing scalability optimizations,
to update the mm_cpumask lazily and related changes. This feature
has both a track record and a continued risk of performance regressions,
so it was already delayed by a cycle - but it's all 100% perfect now™.
(Rik van Riel)
- Also miscellaneous fixes and cleanups. (Gautam Somani,
Kirill A. Shutemov, Sebastian Andrzej Siewior)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-mm-2025-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar:
- The biggest changes are the TLB flushing scalability optimizations,
to update the mm_cpumask lazily and related changes.
This feature has both a track record and a continued risk of
performance regressions, so it was already delayed by a cycle - but
it's all 100% perfect now™ (Rik van Riel)
- Also miscellaneous fixes and cleanups. (Gautam Somani, Kirill
Shutemov, Sebastian Andrzej Siewior)
* tag 'x86-mm-2025-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Remove unnecessary include of <linux/extable.h>
x86/mtrr: Rename mtrr_overwrite_state() to guest_force_mtrr_state()
x86/mm/selftests: Fix typo in lam.c
x86/mm/tlb: Only trim the mm_cpumask once a second
x86/mm/tlb: Also remove local CPU from mm_cpumask if stale
x86/mm/tlb: Add tracepoint for TLB flush IPI to stale CPU
x86/mm/tlb: Update mm_cpumask lazily
cleanups from Liang and Slava, all in CephFS.
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Merge tag 'ceph-for-6.14-rc1' of https://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"A fix for a memory leak from Antoine (marked for stable) and two
cleanups from Liang and Slava"
* tag 'ceph-for-6.14-rc1' of https://github.com/ceph/ceph-client:
ceph: exchange hardcoded value on NAME_MAX
ceph: streamline request head structures in MDS client
ceph: fix memory leak in ceph_mds_auth_match()
queue_limits_cancel_update() must only be called if
queue_limits_start_update() is called first. Remove the
queue_limits_cancel_update() call from linear_set_limits() because
there is no corresponding queue_limits_start_update() call.
This bug was discovered by annotating all mutex operations with clang
thread-safety attributes and by building the kernel with clang and
-Wthread-safety.
Cc: Yu Kuai <yukuai3@huawei.com>
Cc: Coly Li <colyli@kernel.org>
Cc: Mike Snitzer <snitzer@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Fixes: 127186cfb1 ("md: reintroduce md-linear")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250129225636.2667932-1-bvanassche@acm.org
Signed-off-by: Song Liu <song@kernel.org>
Do not access the state variable directly, instead use proper
synchronization so not stale data is read.
Fixes: e6e7f7ac03 ("nvme: ensure reset state check ordering")
Signed-off-by: Daniel Wagner <wagi@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>
To suppress the compiler "warning: symbol 'nvme_tls_attrs_group' was not
declared. Should it be static?"
Fixes: 1e48b34c9b ("nvme: split off TLS sysfs attributes into a separate group")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Idea behind having ice_rx_buf::act was to simplify and speed up the Rx
data path by walking through buffers that were representing cleaned HW
Rx descriptors. Since it caused us a major headache recently and we
rolled back to old approach that 'puts' Rx buffers right after running
XDP prog/creating skb, this is useless now and should be removed.
Get rid of ice_rx_buf::act and related logic. We still need to take care
of a corner case where XDP program releases a particular fragment.
Make ice_run_xdp() to return its result and use it within
ice_put_rx_mbuf().
Fixes: 2fba7dc515 ("ice: Add support for XDP multi-buffer on Rx side")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
If we store the pgcnt on few fragments while being in the middle of
gathering the whole frame and we stumbled upon DD bit not being set, we
terminate the NAPI Rx processing loop and come back later on. Then on
next NAPI execution we work on previously stored pgcnt.
Imagine that second half of page was used actively by networking stack
and by the time we came back, stack is not busy with this page anymore
and decremented the refcnt. The page reuse algorithm in this case should
be good to reuse the page but given the old refcnt it will not do so and
attempt to release the page via page_frag_cache_drain() with
pagecnt_bias used as an arg. This in turn will result in negative refcnt
on struct page, which was initially observed by Xu Du.
Therefore, move the page count storage from ice_get_rx_buf() to a place
where we are sure that whole frame has been collected, but before
calling XDP program as it internally can also change the page count of
fragments belonging to xdp_buff.
Fixes: ac07533911 ("ice: Store page count inside ice_rx_buf")
Reported-and-tested-by: Xu Du <xudu@redhat.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Co-developed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Introduce a new helper ice_put_rx_mbuf() that will go through gathered
frags from current frame and will call ice_put_rx_buf() on them. Current
logic that was supposed to simplify and optimize the driver where we go
through a batch of all buffers processed in current NAPI instance turned
out to be broken for jumbo frames and very heavy load that was coming
from both multi-thread iperf and nginx/wrk pair between server and
client. The delay introduced by approach that we are dropping is simply
too big and we need to take the decision regarding page
recycling/releasing as quick as we can.
While at it, address an error path of ice_add_xdp_frag() - we were
missing buffer putting from day 1 there.
As a nice side effect we get rid of annoying and repetitive three-liner:
xdp->data = NULL;
rx_ring->first_desc = ntc;
rx_ring->nr_frags = 0;
by embedding it within introduced routine.
Fixes: 1dc1a7e7f4 ("ice: Centrallize Rx buffer recycling")
Reported-and-tested-by: Xu Du <xudu@redhat.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Co-developed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
I got a syzbot report: slab-out-of-bounds Read in
orangefs_debug_write... several people suggested fixes,
I tested Al Viro's suggestion and made this patch.
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Merge tag 'for-linus-6.14-ofs4' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux
Pull orangefs fix from Mike Marshall:
"Fix a oob in orangefs_debug_write
I got a syzbot report: "slab-out-of-bounds Read in orangefs_debug_write"
Several people suggested fixes, I tested Al Viro's suggestion and made
this patch"
* tag 'for-linus-6.14-ofs4' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
orangefs: fix a oob in orangefs_debug_write
use of strcpy() with overlapping source and destination is a UB;
original loop hadn't been. More to the point, the whole thing
is much easier done with memcpy() + memmove().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull hostfs fix from Al Viro:
"Fix hostfs __dentry_name() string handling.
The use of strcpy() with overlapping source and destination is a UB;
original loop hadn't been. More to the point, the whole thing is much
easier done with memcpy() + memmove()"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
hostfs: fix string handling in __dentry_name()
Here is a collection of fixes that have been gathered since the
previous PR. All about device-specific fixes and quirks, and most
of them are pretty small and trivial.
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Merge tag 'sound-fix-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here is a collection of fixes that have been gathered since the
previous pull request.
All about device-specific fixes and quirks, and most of them are
pretty small and trivial"
* tag 'sound-fix-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (25 commits)
ALSA: hda/realtek: Workaround for resume on Dell Venue 11 Pro 7130
ALSA: hda: Fix headset detection failure due to unstable sort
ALSA: pcm: use new array-copying-wrapper
ASoC: codec: es8316: "DAC Soft Ramp Rate" is just a 2 bit control
ASoC: amd: acp: Fix possible deadlock
firmware: cs_dsp: FW_CS_DSP_KUNIT_TEST should not select REGMAP
ALSA: usb-audio: Add delay quirk for iBasso DC07 Pro
ALSA: hda/realtek: Fix quirk matching for Legion Pro 7
ASoC: renesas: SND_SIU_MIGOR should depend on DMADEVICES
ASoC: Intel: bytcr_rt5640: Add DMI quirk for Vexia Edu Atla 10 tablet 5V
ASoC: da7213: Initialize the mutex
ASoC: use to_platform_device() instead of container_of()
ASoC: acp: Support microphone from Lenovo Go S
ASoC: SOF: imx8m: Add entry for new 8M Plus revision
ASoC: SOF: imx8: Add entries for new 8QM and 8QXP revisions
ASoC: SOF: imx: Add mach entry to select cs42888 topology
dt-bindings: arm: imx: Add board revisions for i.MX8MP, i.MX8QM and i.MX8QXP
ASoC: fsl_asrc_m2m: select CONFIG_DMA_SHARED_BUFFER
ASoC: audio-graph-card2: use correct endpoint when getting link parameters
ASoC: SOF: imx8m: add SAI2,5,6,7
...
Add basic support for the new AIC200 product. The PCIe Device ID is
0xa110. With this, we can turn on the lights for AIC200 by leveraging
much of the existing driver.
Co-developed-by: Youssef Samir <quic_yabdulra@quicinc.com>
Signed-off-by: Youssef Samir <quic_yabdulra@quicinc.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Lizhi Hou <lizhi.hou@amd.com>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250117170943.2643280-8-quic_jhugo@quicinc.com
As the number of cards supported by the driver grows, their
configurations will differ. The driver needs to become more dynamic
to support these configurations. Currently, each card may differ in
the exposed BARs, the regions they map to, and the family.
Create config structs for each card, and let the driver configure the
qaic_device struct based on the configurations passed to the driver.
Co-developed-by: Youssef Samir <quic_yabdulra@quicinc.com>
Signed-off-by: Youssef Samir <quic_yabdulra@quicinc.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250117170943.2643280-7-quic_jhugo@quicinc.com
During the initialization of the qaic device, pci_select_bars() is
used to fetch a bitmask of the BARs exposed by the device. On devices
that have Virtual Functions capabilities, the bitmask includes SR-IOV
BARs.
Use a mask to filter out SR-IOV BARs if they exist.
Signed-off-by: Youssef Samir <quic_yabdulra@quicinc.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250117170943.2643280-6-quic_jhugo@quicinc.com
AIC200 device will support MSI-X while AIC100 devices will keep using
MSI. pci_alloc_irq_vectors() will try to allocate MSI-X vectors if it
is supported by the target device, otherwise, it will fallback to MSI.
Add support for MSI-X vectors allocation for AIC200 devices.
Signed-off-by: Youssef Samir <quic_yabdulra@quicinc.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250117170943.2643280-5-quic_jhugo@quicinc.com
Devices use 1 MSI vector for the MHI controller and as many vectors as
the DMA bridge channels on the device. During the probing of the
device, the driver allocates 32 MSI vectors, which is usually more
than what is needed for AIC100 devices, which is wasting resources.
Allocate only the needed number of MSI vectors per device.
Signed-off-by: Youssef Samir <quic_yabdulra@quicinc.com>
Reviewed-by: Troy Hanson <quic_thanson@quicinc.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250117170943.2643280-4-quic_jhugo@quicinc.com
Currently, MHI host only performs firmware transfer via BHI in PBL and
BHIe from SBL. To support BHIe transfer directly from PBL, a policy
needs to be added.
With this policy, BHIe will be used to transfer firmware in PBL if the
MHI controller has BHIe regs, sets seg_len, and does not set
fbc_download. The intention is to transfer firmware using BHIe in PBL
without further BHIe transfers in SBL.
Signed-off-by: Matthew Leung <quic_mattleun@quicinc.com>
Reviewed-by: Youssef Samir <quic_yabdulra@quicinc.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250117170943.2643280-3-quic_jhugo@quicinc.com
Refactor the firmware loading code to have distinct helper functions for
BHI and BHIe operations. This lays the foundation for separating the
firmware loading protocol from the firmware being loaded and the EE it
is loaded in.
Signed-off-by: Matthew Leung <quic_mattleun@quicinc.com>
Reviewed-by: Youssef Samir <quic_yabdulra@quicinc.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250117170943.2643280-2-quic_jhugo@quicinc.com
Currently, intel_dp_dsc_max_src_input_bpc can return 0 for platforms not
supporting DSC, which could theoretically cause issues in clamp()
due to a low limit being greater than the high limit.
Instead, return the minimum bpc supported by the source to prevent
such issues.
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Closes: https://lore.kernel.org/all/CA+G9fYtNfM399_=_ff81zeRJv=0+z7oFJfPGmJgTp6yrJmU+1w@mail.gmail.com/
Fixes: 160672b86b ("drm/i915/dp: Use clamp for pipe_bpp limits with DSC")
Cc: Suraj Kandpal <suraj.kandpal@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Tested-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250131041342.3086716-1-ankit.k.nautiyal@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
When block drivers or the core block code perform allocations with a
frozen queue, this could try to recurse into the block device to
reclaim memory and deadlock. Thus all allocations done by a process
that froze a queue need to be done without __GFP_IO and __GFP_FS.
Instead of tying to track all of them down, force a noio scope as
part of freezing the queue.
Note that nvme is a bit of a mess here due to the non-owner freezes,
and they will be addressed separately.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250131120352.1315351-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
If the hotplug detect of a display is low for longer than one second
(configurable through drm_dp_cec_unregister_delay), then the CEC adapter
is unregistered since we assume the display was disconnected. If the
HPD went low for less than one second, then we check if the properties
of the CEC adapter have changed, since that indicates that we actually
switch to new hardware and we have to unregister the old CEC device and
register a new one.
Unfortunately, the test for changed properties was written poorly, and
after a new CEC capability was added to the CEC core code the test always
returned true (i.e. the properties had changed).
As a result the CEC device was unregistered and re-registered for every
HPD toggle. If the CEC remote controller integration was also enabled
(CONFIG_MEDIA_CEC_RC was set), then the corresponding input device was
also unregistered and re-registered. As a result the input device in
/sys would keep incrementing its number, e.g.:
/sys/devices/pci0000:00/0000:00:08.1/0000:e7:00.0/rc/rc0/input20
Since short HPD toggles are common, the number could over time get into
the thousands.
While not a serious issue (i.e. nothing crashes), it is not intended
to work that way.
This patch changes the test so that it only checks for the single CEC
capability that can actually change, and it ignores any other
capabilities, so this is now safe as well if new caps are added in
the future.
With the changed test the bit under #ifndef CONFIG_MEDIA_CEC_RC can be
dropped as well, so that's a nice cleanup.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Reported-by: Farblos <farblos@vodafonemail.de>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Fixes: 2c6d1fffa1 ("drm: add support for DisplayPort CEC-Tunneling-over-AUX")
Tested-by: Farblos <farblos@vodafonemail.de>
Link: https://patchwork.freedesktop.org/patch/msgid/361bb03d-1691-4e23-84da-0861ead5dbdc@xs4all.nl
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
In some rare situations a non default storage key is already set on the
memory used by the test. Within normal VMs the key is reset / zapped
when the memory is added to the VM. This is not the case for ucontrol
VMs. With the initial iske check removed this test case can work in all
situations. The function of the iske instruction is still validated by
the remaining code.
Fixes: 0185fbc6a2 ("KVM: s390: selftests: Add uc_skey VM test case")
Signed-off-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Link: https://lore.kernel.org/r/20250128131803.1047388-1-schlameuss@linux.ibm.com
Message-ID: <20250128131803.1047388-1-schlameuss@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Shadow page tables use page->index to keep the g2 address of the guest
page table being shadowed.
Instead of keeping the information in page->index, split the address
and smear it over the 16-bit softbits areas of 4 PGSTEs.
This removes the last s390 user of page->index.
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Link: https://lore.kernel.org/r/20250123144627.312456-16-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-16-imbrenda@linux.ibm.com>
Move the softbits in the PGSTEs to the other usable area.
This leaves the 16-bit block of usable bits free, which will be used in the
next patch for something else.
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Link: https://lore.kernel.org/r/20250123144627.312456-15-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-15-imbrenda@linux.ibm.com>
The page->index field for VSIE dat tables is only used for segment
tables.
Stop setting the field for all region tables.
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Link: https://lore.kernel.org/r/20250123144627.312456-14-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-14-imbrenda@linux.ibm.com>
Until now, every dat table allocated to map a guest was put in a
linked list. The page->lru field of struct page was used to keep track
of which pages were being used, and when the gmap is torn down, the
list was walked and all pages freed.
This patch gets rid of the usage of page->lru. Page tables are now
freed by recursively walking the dat table tree.
Since s390_unlist_old_asce() becomes useless now, remove it.
Acked-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Link: https://lore.kernel.org/r/20250123144627.312456-12-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-12-imbrenda@linux.ibm.com>
The host_to_guest radix tree will now map userspace addresses to guest
addresses, instead of userspace addresses to segment tables.
When segment tables and page tables are needed, they are found using an
additional gmap_table_walk().
This gets rid of all usage of page->index for non-shadow gmaps.
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Link: https://lore.kernel.org/r/20250123144627.312456-11-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-11-imbrenda@linux.ibm.com>
Move some gmap shadowing functions from mm/gmap.c to kvm/kvm-s390.c and
the newly created kvm/gmap-vsie.c
This is a step toward removing gmap from mm.
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Link: https://lore.kernel.org/r/20250123144627.312456-10-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-10-imbrenda@linux.ibm.com>
Add gpa_to_hva(), which uses memslots, and use it to replace all uses
of gmap_translate().
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Link: https://lore.kernel.org/r/20250123144627.312456-9-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-9-imbrenda@linux.ibm.com>
All gmap page faults are already handled in kvm by the function
kvm_s390_handle_dat_fault(); only few users of gmap_fault remained, all
within kvm.
Convert those calls to use kvm_s390_handle_dat_fault() instead.
Remove gmap_fault() entirely since it has no more users.
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Link: https://lore.kernel.org/r/20250123144627.312456-8-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-8-imbrenda@linux.ibm.com>
Refactor the existing page fault handling code to use __kvm_faultin_pfn().
This possible now that memslots are always present.
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Link: https://lore.kernel.org/r/20250123144627.312456-7-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-7-imbrenda@linux.ibm.com>
Move gmap related functions from kernel/uv into kvm.
Create a new file to collect gmap-related functions.
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
[fixed unpack_one(), thanks mhartmay@linux.ibm.com]
Link: https://lore.kernel.org/r/20250123144627.312456-6-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-6-imbrenda@linux.ibm.com>
With the latest patch, attempting to create a memslot from userspace
will result in an EEXIST error for UCONTROL VMs, instead of EINVAL,
since the new memslot will collide with the internal memslot. There is
no simple way to bring back the previous behaviour.
This is not a problem, but the test needs to be fixed accordingly.
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Link: https://lore.kernel.org/r/20250123144627.312456-5-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-5-imbrenda@linux.ibm.com>
Create a fake memslot for ucontrol VMs. The fake memslot identity-maps
userspace.
Now memslots will always be present, and ucontrol is not a special case
anymore.
Suggested-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Link: https://lore.kernel.org/r/20250123144627.312456-4-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-4-imbrenda@linux.ibm.com>
Exempt KVM-internal memslots from the KVM_MEM_MAX_NR_PAGES restriction, as
the limit on the number of pages exists purely to play nice with dirty
bitmap operations, which use 32-bit values to index the bitmaps, and dirty
logging isn't supported for KVM-internal memslots.
Link: https://lore.kernel.org/all/20240802205003.353672-6-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/r/20250123144627.312456-2-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-2-imbrenda@linux.ibm.com>
Now that we no longer use page->index and the page refcount explicitly,
let's avoid messing with "struct page" completely.
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Tested-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Message-ID: <20250107154344.1003072-5-david@redhat.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Let's stop messing with the page refcount, and use a flag that is set /
cleared atomically to remember whether a vsie page is currently in use.
Note that we could use a page flag, or a lower bit of the scb_gpa. Let's
keep it simple for now, we have sufficient space.
While at it, stop passing "struct kvm *" to put_vsie_page(), it's
unused.
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Tested-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Message-ID: <20250107154344.1003072-4-david@redhat.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
