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Rename the original retbleed return thunk and untrain_ret to
retbleed_return_thunk() and retbleed_untrain_ret().
No functional changes.
Suggested-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230814121148.909378169@infradead.org
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Use the existing configurable return thunk. There is absolute no
justification for having created this __x86_return_thunk alternative.
To clarify, the whole thing looks like:
Zen3/4 does:
srso_alias_untrain_ret:
nop2
lfence
jmp srso_alias_return_thunk
int3
srso_alias_safe_ret: // aliasses srso_alias_untrain_ret just so
add $8, %rsp
ret
int3
srso_alias_return_thunk:
call srso_alias_safe_ret
ud2
While Zen1/2 does:
srso_untrain_ret:
movabs $foo, %rax
lfence
call srso_safe_ret (jmp srso_return_thunk ?)
int3
srso_safe_ret: // embedded in movabs instruction
add $8,%rsp
ret
int3
srso_return_thunk:
call srso_safe_ret
ud2
While retbleed does:
zen_untrain_ret:
test $0xcc, %bl
lfence
jmp zen_return_thunk
int3
zen_return_thunk: // embedded in the test instruction
ret
int3
Where Zen1/2 flush the BTB entry using the instruction decoder trick
(test,movabs) Zen3/4 use BTB aliasing. SRSO adds a return sequence
(srso_safe_ret()) which forces the function return instruction to
speculate into a trap (UD2). This RET will then mispredict and
execution will continue at the return site read from the top of the
stack.
Pick one of three options at boot (evey function can only ever return
once).
[ bp: Fixup commit message uarch details and add them in a comment in
the code too. Add a comment about the srso_select_mitigation()
dependency on retbleed_select_mitigation(). Add moar ifdeffery for
32-bit builds. Add a dummy srso_untrain_ret_alias() definition for
32-bit alternatives needing the symbol. ]
Fixes: fb3bd914b3ec ("x86/srso: Add a Speculative RAS Overflow mitigation")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230814121148.842775684@infradead.org
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There is infrastructure to rewrite return thunks to point to any
random thunk one desires, unwrap that from CALL_THUNKS, which up to
now was the sole user of that.
[ bp: Make the thunks visible on 32-bit and add ifdeffery for the
32-bit builds. ]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230814121148.775293785@infradead.org
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Objtool --rethunk does two things:
- it collects all (tail) call's of __x86_return_thunk and places them
into .return_sites. These are typically compiler generated, but
RET also emits this same.
- it fudges the validation of the __x86_return_thunk symbol; because
this symbol is inside another instruction, it can't actually find
the instruction pointed to by the symbol offset and gets upset.
Because these two things pertained to the same symbol, there was no
pressing need to separate these two separate things.
However, alas, along comes SRSO and more crazy things to deal with
appeared.
The SRSO patch itself added the following symbol names to identify as
rethunk:
'srso_untrain_ret', 'srso_safe_ret' and '__ret'
Where '__ret' is the old retbleed return thunk, 'srso_safe_ret' is a
new similarly embedded return thunk, and 'srso_untrain_ret' is
completely unrelated to anything the above does (and was only included
because of that INT3 vs UD2 issue fixed previous).
Clear things up by adding a second category for the embedded instruction
thing.
Fixes: fb3bd914b3ec ("x86/srso: Add a Speculative RAS Overflow mitigation")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230814121148.704502245@infradead.org
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vmlinux.o: warning: objtool: srso_untrain_ret() falls through to next function __x86_return_skl()
vmlinux.o: warning: objtool: __x86_return_thunk() falls through to next function __x86_return_skl()
This is because these functions (can) end with CALL, which objtool
does not consider a terminating instruction. Therefore, replace the
INT3 instruction (which is a non-fatal trap) with UD2 (which is a
fatal-trap).
This indicates execution will not continue past this point.
Fixes: fb3bd914b3ec ("x86/srso: Add a Speculative RAS Overflow mitigation")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230814121148.637802730@infradead.org
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Commit
fb3bd914b3ec ("x86/srso: Add a Speculative RAS Overflow mitigation")
reimplemented __x86_return_thunk with a mix of SYM_FUNC_START and
SYM_CODE_END, this is not a sane combination.
Since nothing should ever actually 'CALL' this, make it consistently
CODE.
Fixes: fb3bd914b3ec ("x86/srso: Add a Speculative RAS Overflow mitigation")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230814121148.571027074@infradead.org
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retpolines and IBT
The kprobes optimization check can_optimize() calls
insn_is_indirect_jump() to detect indirect jump instructions in
a target function. If any is found, creating an optprobe is disallowed
in the function because the jump could be from a jump table and could
potentially land in the middle of the target optprobe.
With retpolines, insn_is_indirect_jump() additionally looks for calls to
indirect thunks which the compiler potentially used to replace original
jumps. This extra check is however unnecessary because jump tables are
disabled when the kernel is built with retpolines. The same is currently
the case with IBT.
Based on this observation, remove the logic to look for calls to
indirect thunks and skip the check for indirect jumps altogether if the
kernel is built with retpolines or IBT. Remove subsequently the symbols
__indirect_thunk_start and __indirect_thunk_end which are no longer
needed.
Dropping this logic indirectly fixes a problem where the range
[__indirect_thunk_start, __indirect_thunk_end] wrongly included also the
return thunk. It caused that machines which used the return thunk as
a mitigation and didn't have it patched by any alternative ended up not
being able to use optprobes in any regular function.
Fixes: 0b53c374b9ef ("x86/retpoline: Use -mfunction-return")
Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Suggested-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Link: https://lore.kernel.org/r/20230711091952.27944-3-petr.pavlu@suse.com
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The linker script arch/x86/kernel/vmlinux.lds.S matches the thunk
sections ".text.__x86.*" from arch/x86/lib/retpoline.S as follows:
.text {
[...]
TEXT_TEXT
[...]
__indirect_thunk_start = .;
*(.text.__x86.*)
__indirect_thunk_end = .;
[...]
}
Macro TEXT_TEXT references TEXT_MAIN which normally expands to only
".text". However, with CONFIG_LTO_CLANG, TEXT_MAIN becomes
".text .text.[0-9a-zA-Z_]*" which wrongly matches also the thunk
sections. The output layout is then different than expected. For
instance, the currently defined range [__indirect_thunk_start,
__indirect_thunk_end] becomes empty.
Prevent the problem by using ".." as the first separator, for example,
".text..__x86.indirect_thunk". This pattern is utilized by other
explicit section names which start with one of the standard prefixes,
such as ".text" or ".data", and that need to be individually selected in
the linker script.
[ nathan: Fix conflicts with SRSO and fold in fix issue brought up by
Andrew Cooper in post-review:
https://lore.kernel.org/20230803230323.1478869-1-andrew.cooper3@citrix.com ]
Fixes: dc5723b02e52 ("kbuild: add support for Clang LTO")
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230711091952.27944-2-petr.pavlu@suse.com
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Skip the srso cmd line parsing which is not needed on Zen1/2 with SMT
disabled and with the proper microcode applied (latter should be the
case anyway) as those are not affected.
Fixes: 5a15d8348881 ("x86/srso: Tie SBPB bit setting to microcode patch detection")
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230813104517.3346-1-bp@alien8.de
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Initially, it was thought that doing an innocuous division in the #DE
handler would take care to prevent any leaking of old data from the
divider but by the time the fault is raised, the speculation has already
advanced too far and such data could already have been used by younger
operations.
Therefore, do the innocuous division on every exit to userspace so that
userspace doesn't see any potentially old data from integer divisions in
kernel space.
Do the same before VMRUN too, to protect host data from leaking into the
guest too.
Fixes: 77245f1c3c64 ("x86/CPU/AMD: Do not leak quotient data after a division by 0")
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: <stable@kernel.org>
Link: https://lore.kernel.org/r/20230811213824.10025-1-bp@alien8.de
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Use LEA instead of ADD when adjusting %rsp in srso_safe_ret{,_alias}()
so as to avoid clobbering flags. Drop one of the INT3 instructions to
account for the LEA consuming one more byte than the ADD.
KVM's emulator makes indirect calls into a jump table of sorts, where
the destination of each call is a small blob of code that performs fast
emulation by executing the target instruction with fixed operands.
E.g. to emulate ADC, fastop() invokes adcb_al_dl():
adcb_al_dl:
<+0>: adc %dl,%al
<+2>: jmp <__x86_return_thunk>
A major motivation for doing fast emulation is to leverage the CPU to
handle consumption and manipulation of arithmetic flags, i.e. RFLAGS is
both an input and output to the target of the call. fastop() collects
the RFLAGS result by pushing RFLAGS onto the stack and popping them back
into a variable (held in %rdi in this case):
asm("push %[flags]; popf; " CALL_NOSPEC " ; pushf; pop %[flags]\n"
<+71>: mov 0xc0(%r8),%rdx
<+78>: mov 0x100(%r8),%rcx
<+85>: push %rdi
<+86>: popf
<+87>: call *%rsi
<+89>: nop
<+90>: nop
<+91>: nop
<+92>: pushf
<+93>: pop %rdi
and then propagating the arithmetic flags into the vCPU's emulator state:
ctxt->eflags = (ctxt->eflags & ~EFLAGS_MASK) | (flags & EFLAGS_MASK);
<+64>: and $0xfffffffffffff72a,%r9
<+94>: and $0x8d5,%edi
<+109>: or %rdi,%r9
<+122>: mov %r9,0x10(%r8)
The failures can be most easily reproduced by running the "emulator"
test in KVM-Unit-Tests.
If you're feeling a bit of deja vu, see commit b63f20a778c8
("x86/retpoline: Don't clobber RFLAGS during CALL_NOSPEC on i386").
In addition, this breaks booting of clang-compiled guest on
a gcc-compiled host where the host contains the %rsp-modifying SRSO
mitigations.
[ bp: Massage commit message, extend, remove addresses. ]
Fixes: fb3bd914b3ec ("x86/srso: Add a Speculative RAS Overflow mitigation")
Closes: https://lore.kernel.org/all/de474347-122d-54cd-eabf-9dcc95ab9eae@amd.com
Reported-by: Srikanth Aithal <sraithal@amd.com>
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/20230810013334.GA5354@dev-arch.thelio-3990X/
Link: https://lore.kernel.org/r/20230811155255.250835-1-seanjc@google.com
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Clear errno before calling getline()
- Fix a modpost warning for ARCH=alpha
* tag 'kbuild-fixes-v6.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
alpha: remove __init annotation from exported page_is_ram()
scripts/kallsyms: Fix build failure by setting errno before calling getline()
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform drivers fixes from Hans de Goede:
- lenovo-ymc driver causes keyboard + touchpad to not work with >= 6.4
on some Thinkbook models, fix this
- A set of small fixes for mlx-platform
- Other small fixes and hw-id additions
* tag 'platform-drivers-x86-v6.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: lenovo-ymc: Only bind on machines with a convertible DMI chassis-type
platform: mellanox: Change register offset addresses
platform: mellanox: mlx-platform: Modify graceful shutdown callback and power down mask
platform: mellanox: mlx-platform: Fix signals polarity and latch mask
platform: mellanox: Fix order in exit flow
platform/x86: ISST: Reduce noise for missing numa information in logs
platform/x86: msi-ec: Fix the build
ACPI: scan: Create platform device for CS35L56
platform/x86/amd/pmf: Fix unsigned comparison with less than zero
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Eleven small fixes, ten in drivers.
Of the two fixes marked core, one is in the raid helper class (used by
some raid device drivers) and the other one is the /proc/scsi/scsi
parsing fix for potential reads beyond the end of the buffer"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qedf: Fix firmware halt over suspend and resume
scsi: qedi: Fix firmware halt over suspend and resume
scsi: qedi: Fix potential deadlock on &qedi_percpu->p_work_lock
scsi: lpfc: Remove reftag check in DIF paths
scsi: ufs: renesas: Fix private allocation
scsi: snic: Fix possible memory leak if device_add() fails
scsi: core: Fix possible memory leak if device_add() fails
scsi: core: Fix legacy /proc parsing buffer overflow
scsi: 53c700: Check that command slot is not NULL
scsi: fnic: Replace return codes in fnic_clean_pending_aborts()
scsi: storvsc: Fix handling of virtual Fibre Channel timeouts
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chassis-type
The lenovo-ymc driver is causing the keyboard + touchpad to stop working
on some regular laptop models such as the Lenovo ThinkBook 13s G2 ITL 20V9.
The problem is that there are YMC WMI GUID methods in the ACPI tables
of these laptops, despite them not being Yogas and lenovo-ymc loading
causes libinput to see a SW_TABLET_MODE switch with state 1.
This in turn causes libinput to ignore events from the builtin keyboard
and touchpad, since it filters those out for a Yoga in tablet mode.
Similar issues with false-positive SW_TABLET_MODE=1 reporting have
been seen with the intel-hid driver.
Copy the intel-hid driver approach to fix this and only bind to the WMI
device on machines where the DMI chassis-type indicates the machine
is a convertible.
Add a 'force' module parameter to allow overriding the chassis-type check
so that users can easily test if the YMC interface works on models which
report an unexpected chassis-type.
Fixes: e82882cdd241 ("platform/x86: Add driver for Yoga Tablet Mode switch")
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2229373
Cc: André Apitzsch <git@apitzsch.eu>
Cc: stable@vger.kernel.org
Tested-by: Andrew Kallmeyer <kallmeyeras@gmail.com>
Tested-by: Gergő Köteles <soyer@irl.hu>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230812144818.383230-1-hdegoede@redhat.com
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Move debug register offsets to different location due to hardware changes.
Fixes: dd635e33b5c9 ("platform: mellanox: Introduce support of new Nvidia L1 switch")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Link: https://lore.kernel.org/r/20230813083735.39090-5-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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power down mask
Use kernel_power_off() instead of kernel_halt() to pass through
machine_power_off() -> pm_power_off(), otherwise axillary power does
not go off.
Change "power down" bitmask.
Fixes: dd635e33b5c9 ("platform: mellanox: Introduce support of new Nvidia L1 switch")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Link: https://lore.kernel.org/r/20230813083735.39090-4-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Change polarity of chassis health and power signals and fix latch reset
mask for L1 switch.
Fixes: dd635e33b5c9 ("platform: mellanox: Introduce support of new Nvidia L1 switch")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Link: https://lore.kernel.org/r/20230813083735.39090-3-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Fix exit flow order: call mlxplat_post_exit() after
mlxplat_i2c_main_exit() in order to unregister main i2c driver before
to "mlxplat" driver.
Fixes: 0170f616f496 ("platform: mellanox: Split initialization procedure")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Link: https://lore.kernel.org/r/20230813083735.39090-2-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"More fixes, some of them going back to older releases and there are
fixes for hangs in stress tests regarding space caching:
- fixes and progress tracking for hangs in free space caching, found
by test generic/475
- writeback fixes, write pages in integrity mode and skip writing
pages that have been written meanwhile
- properly clear end of extent range after an error
- relocation fixes:
- fix race betwen qgroup tree creation and relocation
- detect and report invalid reloc roots"
* tag 'for-6.5-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: set cache_block_group_error if we find an error
btrfs: reject invalid reloc tree root keys with stack dump
btrfs: exit gracefully if reloc roots don't match
btrfs: avoid race between qgroup tree creation and relocation
btrfs: properly clear end of the unreserved range in cow_file_range
btrfs: don't wait for writeback on clean pages in extent_write_cache_pages
btrfs: don't stop integrity writeback too early
btrfs: wait for actual caching progress during allocation
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- mark virtual chips exposed by gpio-sim as ones that can sleep
(callbacks must not be called from interrupt context)
- fix an off-by-one error in gpio-ws16c48
* tag 'gpio-fixes-for-v6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: ws16c48: Fix off-by-one error in WS16C48 resource region extent
gpio: sim: mark the GPIO chip as a one that can sleep
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The only remaining consumer is new_inode, where it showed up in 2001 as
commit c37fa164f793 ("v2.4.9.9 -> v2.4.9.10") in a historical repo [1]
with a changelog which does not mention it.
Since then the line got only touched up to keep compiling.
While it may have been of benefit back in the day, it is guaranteed to
at best not get in the way in the multicore setting -- as the code
performs *a lot* of work between the prefetch and actual lock acquire,
any contention means the cacheline is already invalid by the time the
routine calls spin_lock(). It adds spurious traffic, for short.
On top of it prefetch is notoriously tricky to use for single-threaded
purposes, making it questionable from the get go.
As such, remove it.
I admit upfront I did not see value in benchmarking this change, but I
can do it if that is deemed appropriate.
Removal from new_inode and of the entire thing are in the same patch as
requested by Linus, so whatever weird looks can be directed at that guy.
Link: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git/commit/fs/inode.c?id=c37fa164f793735b32aa3f53154ff1a7659e6442 [1]
Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc driver fixes from Greg KH:
"Here are some small char/misc driver fixes for 6.5-rc6 that resolve
some reported issues. Included in here are:
- bunch of iio driver fixes for reported problems
- interconnect driver fixes
- counter driver build fix
- cardreader driver fixes
- binder driver fixes
- other tiny driver fixes
All of these have been in linux-next for a while with no reported
problems"
* tag 'char-misc-6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits)
misc: tps6594-esm: Disable ESM for rev 1 PMIC
misc: rtsx: judge ASPM Mode to set PETXCFG Reg
binder: fix memory leak in binder_init()
iio: cros_ec: Fix the allocation size for cros_ec_command
tools/counter: Makefile: Replace rmdir by rm to avoid make,clean failure
iio: imu: lsm6dsx: Fix mount matrix retrieval
iio: adc: meson: fix core clock enable/disable moment
iio: core: Prevent invalid memory access when there is no parent
iio: frequency: admv1013: propagate errors from regulator_get_voltage()
counter: Fix menuconfig "Counter support" submenu entries disappearance
dt-bindings: iio: adi,ad74115: remove ref from -nanoamp
iio: adc: ina2xx: avoid NULL pointer dereference on OF device match
iio: light: bu27008: Fix intensity data type
iio: light: bu27008: Fix scale format
iio: light: bu27034: Fix scale format
iio: adc: ad7192: Fix ac excitation feature
interconnect: qcom: sa8775p: add enable_mask for bcm nodes
interconnect: qcom: sm8550: add enable_mask for bcm nodes
interconnect: qcom: sm8450: add enable_mask for bcm nodes
interconnect: qcom: Add support for mask-based BCMs
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt driver fixes from Greg KH:
"Here are some small USB and Thunderbolt driver fixes for reported
problems. Included in here are:
- thunderbolt driver memory leak fix
- thunderbolt display flicker fix
- usb dwc3 driver fix
- usb gadget uvc disconnect crash fix
- usb typec Kconfig build dependency fix
- usb typec small fixes
- usb-con-gpio bugfix
- usb-storage old driver bugfix
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
thunderbolt: Fix memory leak in tb_handle_dp_bandwidth_request()
usb: dwc3: Properly handle processing of pending events
usb-storage: alauda: Fix uninit-value in alauda_check_media()
usb: common: usb-conn-gpio: Prevent bailing out if initial role is none
USB: Gadget: core: Help prevent panic during UVC unconfigure
usb: typec: mux: intel: Add dependency on USB_COMMON
usb: typec: nb7vpq904m: Add an error handling path in nb7vpq904m_probe()
usb: typec: altmodes/displayport: Signal hpd when configuring pin assignment
usb: typec: tcpm: Fix response to vsafe0V event
thunderbolt: Fix Thunderbolt 3 display flickering issue on 2nd hot plug onwards
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Do not parse the confidential computing blob on non-AMD hardware as
it leads to an EFI config table ending up unmapped
- Use the correct segment selector in the 32-bit version of getcpu() in
the vDSO
- Make sure vDSO and VVAR regions are placed in the 47-bit VA range
even on 5-level paging systems
- Add models 0x90-0x91 to the range of AMD Zenbleed-affected CPUs
* tag 'x86_urgent_for_v6.5_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu/amd: Enable Zenbleed fix for AMD Custom APU 0405
x86/mm: Fix VDSO and VVAR placement on 5-level paging machines
x86/linkage: Fix typo of BUILD_VDSO in asm/linkage.h
x86/vdso: Choose the right GDT_ENTRY_CPUNODE for 32-bit getcpu() on 64-bit kernel
x86/sev: Do not try to parse for the CC blob on non-AMD hardware
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mitigation fixes from Borislav Petkov:
"The first set of fallout fixes after the embargo madness. There will
be another set next week too.
- A first series of cleanups/unifications and documentation
improvements to the SRSO and GDS mitigations code which got
postponed to after the embargo date
- Fix the SRSO aliasing addresses assertion so that the LLVM linker
can parse it too"
* tag 'x86_bugs_for_v6.5_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
driver core: cpu: Fix the fallback cpu_show_gds() name
x86: Move gds_ucode_mitigated() declaration to header
x86/speculation: Add cpu_show_gds() prototype
driver core: cpu: Make cpu_show_not_affected() static
x86/srso: Fix build breakage with the LLVM linker
Documentation/srso: Document IBPB aspect and fix formatting
driver core: cpu: Unify redundant silly stubs
Documentation/hw-vuln: Unify filename specification in index
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git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull tpm irq fixes from Jarkko Sakkinen:
"These change the probing and enabling of interrupts advertised by the
platform firmware (i.e. ACPI, Device Tree) to be an opt-in for tpm_tis,
which can be set from the kernel command-line.
Note that the opt-in change is only for the PC MMIO tpm_tis module. It
does not affect other similar drivers using IRQs, like tpm_tis_spi and
synquacer"
* tag 'tpmdd-v6.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
tpm_tis: Opt-in interrupts
tpm: tpm_tis: Fix UPX-i11 DMI_MATCH condition
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Pull rdma fixes from Jason Gunthorpe:
"A few small bugs:
- Fix longstanding mlx5 bug where ODP would fail with certain MR
alignments
- cancel work to prevent a hfi1 UAF
- MAINTAINERS update
- UAF, missing mutex_init and an error unwind bug in bnxt_re"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/bnxt_re: Initialize dpi_tbl_lock mutex
RDMA/bnxt_re: Fix error handling in probe failure path
RDMA/bnxt_re: Properly order ib_device_unalloc() to avoid UAF
MAINTAINERS: Remove maintainer of HiSilicon RoCE
IB/hfi1: Fix possible panic during hotplug remove
RDMA/umem: Set iova in ODP flow
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git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs
Pull zonefs fix from Damien Le Moal:
- The switch to using iomap for executing a direct synchronous write to
sequential files using a zone append BIO overlooked cases where the
BIO built by iomap is too large and needs splitting, which is not
allowed with zone append.
Fix this by using regular write commands instead. The use of zone
append commands will be reintroduced later with proper support from
iomap.
* tag 'zonefs-6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
zonefs: fix synchronous direct writes to sequential files
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Fix sporadic comunication errors in pmbus/bel-pfe and
aquacomputer_d5next drivers
* tag 'hwmon-for-v6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (aquacomputer_d5next) Add selective 200ms delay after sending ctrl report
hwmon: (pmbus/bel-pfe) Enable PMBUS_SKIP_STATUS_CHECK for pfe1100
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Cc: stable@vger.kernel.org # v6.4+
Link: https://lore.kernel.org/linux-integrity/CAHk-=whRVp4h8uWOX1YO+Y99+44u4s=XxMK4v00B6F1mOfqPLg@mail.gmail.com/
Fixes: e644b2f498d2 ("tpm, tpm_tis: Enable interrupt test")
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
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The patch which made it to the kernel somehow changed the
match condition from
DMI_MATCH(DMI_PRODUCT_NAME, "UPX-TGL01")
to
DMI_MATCH(DMI_PRODUCT_VERSION, "UPX-TGL")
Revert back to the correct match condition to disable the
interrupt mode on the board.
Cc: stable@vger.kernel.org # v6.4+
Fixes: edb13d7bb034 ("tpm: tpm_tis: Disable interrupts *only* for AEON UPX-i11")
Link: https://lore.kernel.org/lkml/20230524085844.11580-1-peter.ujfalusi@linux.intel.com/
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"14 hotfixes. 11 of these are cc:stable and the remainder address
post-6.4 issues, or are not considered suitable for -stable
backporting"
* tag 'mm-hotfixes-stable-2023-08-11-13-44' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/damon/core: initialize damo_filter->list from damos_new_filter()
nilfs2: fix use-after-free of nilfs_root in dirtying inodes via iput
selftests: cgroup: fix test_kmem_basic false positives
fs/proc/kcore: reinstate bounce buffer for KCORE_TEXT regions
MAINTAINERS: add maple tree mailing list
mm: compaction: fix endless looping over same migrate block
selftests: mm: ksm: fix incorrect evaluation of parameter
hugetlb: do not clear hugetlb dtor until allocating vmemmap
mm: memory-failure: avoid false hwpoison page mapped error info
mm: memory-failure: fix potential unexpected return value from unpoison_memory()
mm/swapfile: fix wrong swap entry type for hwpoisoned swapcache page
radix tree test suite: fix incorrect allocation size for pthreads
crypto, cifs: fix error handling in extract_iter_to_sg()
zsmalloc: fix races between modifications of fullness and isolated
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Commit
522b1d69219d ("x86/cpu/amd: Add a Zenbleed fix")
provided a fix for the Zen2 VZEROUPPER data corruption bug affecting
a range of CPU models, but the AMD Custom APU 0405 found on SteamDeck
was not listed, although it is clearly affected by the vulnerability.
Add this CPU variant to the Zenbleed erratum list, in order to
unconditionally enable the fallback fix until a proper microcode update
is available.
Fixes: 522b1d69219d ("x86/cpu/amd: Add a Zenbleed fix")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230811203705.1699914-1-cristian.ciocaltea@collabora.com
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The WinSystems WS16C48 I/O address region spans offsets 0x0 through 0xA,
which is a total of 11 bytes. Fix the WS16C48_EXTENT define to the
correct value of 11 so that access to necessary device registers is
properly requested in the ws16c48_probe() callback by the
devm_request_region() function call.
Fixes: 2c05a0f29f41 ("gpio: ws16c48: Implement and utilize register structures")
Cc: stable@vger.kernel.org
Cc: Paul Demetrotion <pdemetrotion@winsystems.com>
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"Rework the handling of interrupt overrides on AMD Zen-based machines
to avoid recently introduced regressions (Hans de Goede).
Note that this is intended as a short-term mitigation for 6.5 and the
long-term approach will be to attempt to use the configuration left by
the BIOS, but it requires more investigation"
* tag 'acpi-6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: resource: Add IRQ override quirk for PCSpecialist Elimina Pro 16 M
ACPI: resource: Honor MADT INT_SRC_OVR settings for IRQ1 on AMD Zen
ACPI: resource: Always use MADT override IRQ settings for all legacy non i8042 IRQs
ACPI: resource: revert "Remove "Zen" specific match and quirks"
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix an amd-pstate cpufreq driver issues and recently introduced
hibernation-related breakage.
Specifics:
- Make amd-pstate use device_attributes as expected by the CPU root
kobject (Thomas Weißschuh)
- Restore the previous behavior of resume_store() when hibernation is
not available which is to return the full number of bytes that were
to be written by user space (Vlastimil Babka)"
* tag 'pm-6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: amd-pstate: fix global sysfs attribute type
PM: hibernate: fix resume_store() return value when hibernation not available
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Pull block fixes from Jens Axboe:
- NVMe pull request via Keith:
- Fixes for request_queue state (Ming)
- Another uuid quirk (August)
- RCU poll fix for NVMe (Ming)
- Fix for an IO stall with polled IO (me)
- Fix for blk-iocost stats enable/disable accounting (Chengming)
- Regression fix for large pages for zram (Christoph)
* tag 'block-6.5-2023-08-11' of git://git.kernel.dk/linux:
nvme: core: don't hold rcu read lock in nvme_ns_chr_uring_cmd_iopoll
blk-iocost: fix queue stats accounting
block: don't make REQ_POLLED imply REQ_NOWAIT
block: get rid of unused plug->nowait flag
zram: take device and not only bvec offset into account
nvme-pci: add NVME_QUIRK_BOGUS_NID for Samsung PM9B1 256G and 512G
nvme-rdma: fix potential unbalanced freeze & unfreeze
nvme-tcp: fix potential unbalanced freeze & unfreeze
nvme: fix possible hang when removing a controller during error recovery
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Pull io_uring fixes from Jens Axboe:
"A followup fix for the parisc/SHM_COLOUR fix, also from Helge, which
is heading to stable.
And then just the io_uring equivalent of the RESOLVE_CACHED fix in
commit a0fc452a5d7f from last week for build_open_flags()"
* tag 'io_uring-6.5-2023-08-11' of git://git.kernel.dk/linux:
io_uring/parisc: Adjust pgoff in io_uring mmap() for parisc
io_uring: correct check for O_TMPFILE
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In
6524c798b727 ("driver core: cpu: Make cpu_show_not_affected() static")
I fat-fingered the name of cpu_show_gds(). Usually, I'd rebase but since
those are extraordinary embargoed times, the commit above was already
pulled into another tree so no no.
Therefore, fix it ontop.
Fixes: 6524c798b727 ("driver core: cpu: Make cpu_show_not_affected() static")
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230811095831.27513-1-bp@alien8.de
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Merge a cpufreq fix for 6.5-rc6.
This makes amd-pstate use device_attributes as expected by the CPU root
kobject.
* pm-cpufreq:
cpufreq: amd-pstate: fix global sysfs attribute type
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git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci fixes from Bjorn Helgaas:
- Add Manivannan Sadhasivam as DesignWare PCIe driver co-maintainer
(Krzysztof Wilczyński)
- Revert "PCI: dwc: Wait for link up only if link is started" to fix a
regression on Qualcomm platforms that don't reach interconnect sync
state if the slot is empty (Johan Hovold)
- Revert "PCI: mvebu: Mark driver as BROKEN" so people can use
pci-mvebu even though some others report problems (Bjorn Helgaas)
- Avoid a NULL pointer dereference when using acpiphp for root bus
hotplug to fix a regression added in v6.5-rc1 (Igor Mammedov)
* tag 'pci-v6.5-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI: acpiphp: Use pci_assign_unassigned_bridge_resources() only for non-root bus
Revert "PCI: mvebu: Mark driver as BROKEN"
Revert "PCI: dwc: Wait for link up only if link is started"
MAINTAINERS: Add Manivannan Sadhasivam as DesignWare PCIe driver maintainer
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- Fixes for a pair of kexec_file_load() failures
- A fix to ensure the direct mapping is PMD-aligned
- A fix for CPU feature detection on SMP=n
- The MMIO ordering fences have been strengthened to ensure ordering
WRT delay()
- Fixes for a pair of -Wmissing-variable-declarations warnings
- A fix to avoid PUD mappings in vmap on sv39
- flush_cache_vmap() now flushes the TLB to avoid issues on systems
that cache invalid mappings
* tag 'riscv-for-linus-6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Implement flush_cache_vmap()
riscv: Do not allow vmap pud mappings for 3-level page table
riscv: mm: fix 2 instances of -Wmissing-variable-declarations
riscv,mmio: Fix readX()-to-delay() ordering
riscv: Fix CPU feature detection with SMP disabled
riscv: Start of DRAM should at least be aligned on PMD size for the direct mapping
riscv/kexec: load initrd high in available memory
riscv/kexec: handle R_RISCV_CALL_PLT relocation type
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc architecture fixes from Helge Deller:
"A bugfix in the LWS code, which used different lock words than the
parisc lightweight spinlock checks. This inconsistency triggered false
positives when the lightweight spinlock checks checked the locks of
mutexes.
The other patches are trivial cleanups and most of them fix sparse
warnings.
Summary:
- Fix LWS code to use same lock words as for the parisc lightweight
spinlocks
- Use PTR_ERR_OR_ZERO() in pdt init code
- Fix lots of sparse warnings"
* tag 'parisc-for-6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: perf: Make cpu_device variable static
parisc: ftrace: Add declaration for ftrace_function_trampoline()
parisc: boot: Nuke some sparse warnings in decompressor
parisc: processor: Include asm/smp.h for init_per_cpu()
parisc: unaligned: Include linux/sysctl.h for unaligned_enabled
parisc: Move proc_mckinley_root and proc_runway_root to sba_iommu
parisc: dma: Add prototype for pcxl_dma_start
parisc: parisc_ksyms: Include libgcc.h for libgcc prototypes
parisc: ucmpdi2: Fix no previous prototype for '__ucmpdi2' warning
parisc: firmware: Mark pdc_result buffers local
parisc: firmware: Fix sparse context imbalance warnings
parisc: signal: Fix sparse incorrect type in assignment warning
parisc: ioremap: Fix sparse warnings
parisc: fault: Use C99 arrary initializers
parisc: pdt: Use PTR_ERR_OR_ZERO() to simplify code
parisc: Fix lightweight spinlock checks to not break futexes
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm
Pull cpuidle psci fixes from Ulf Hansson:
"A couple of cpuidle-psci fixes. Usually, this is managed by arm-soc
maintainers or Rafael, although due to a busy period I have stepped in
to help out:
- Fix the error path to prevent reverting from OSI back to PC mode"
* tag 'cpuidle-psci-v6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
cpuidle: psci: Move enabling OSI mode after power domains creation
cpuidle: dt_idle_genpd: Add helper function to remove genpd topology
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Pull drm fixes from Dave Airlie:
"This week's fixes, as expected amdgpu is probably a little larger
since it skipped a week, but otherwise a few nouveau fixes, a couple
of bridge, rockchip and ivpu fixes.
amdgpu:
- S/G display workaround for platforms with >= 64G of memory
- S0i3 fix
- SMU 13.0.0 fixes
- Disable SMU 13.x OD features temporarily while the interface is
reworked to enable additional functionality
- Fix cursor gamma issues on DCN3+
- SMU 13.0.6 fixes
- Fix possible UAF in CS IOCTL
- Polaris display regression fix
- Only enable CP GFX shadowing on SR-IOV
amdkfd:
- Raven/Picasso KFD regression fix
bridge:
- it6505: runtime PM fix
- lt9611: revert Do not generate HFP/HBP/HSA and EOT packet
nouveau:
- enable global memory loads for helper invocations for userspace
driver
- dp 1.3 dpcd+ workaround fix
- remove unused function
- revert incorrect NULL check
accel/ivpu:
- Add set_pages_array_wc/uc for internal buffers
rockchip:
- Don't spam logs in atomic check"
* tag 'drm-fixes-2023-08-11' of git://anongit.freedesktop.org/drm/drm: (23 commits)
drm/shmem-helper: Reset vma->vm_ops before calling dma_buf_mmap()
drm/amdkfd: disable IOMMUv2 support for Raven
drm/amdkfd: disable IOMMUv2 support for KV/CZ
drm/amdkfd: ignore crat by default
drm/amdgpu/gfx11: only enable CP GFX shadowing on SR-IOV
drm/amd/display: Fix a regression on Polaris cards
drm/amdgpu: fix possible UAF in amdgpu_cs_pass1()
drm/amd/pm: Fix SMU v13.0.6 energy reporting
drm/amd/display: check attr flag before set cursor degamma on DCN3+
drm/amd/pm: disable the SMU13 OD feature support temporarily
drm/amd/pm: correct the pcie width for smu 13.0.0
drm/amd/display: Don't show stack trace for missing eDP
drm/amdgpu: Match against exact bootloader status
drm/amd/pm: skip the RLC stop when S0i3 suspend for SMU v13.0.4/11
drm/amd: Disable S/G for APUs when 64GB or more host memory
drm/rockchip: Don't spam logs in atomic check
accel/ivpu: Add set_pages_array_wc/uc for internal buffers
drm/nouveau/disp: Revert a NULL check inside nouveau_connector_get_modes
Revert "drm/bridge: lt9611: Do not generate HFP/HBP/HSA and EOT packet"
drm/nouveau: remove unused tu102_gr_load() function
...
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Now nvme_ns_chr_uring_cmd_iopoll() has switched to request based io
polling, and the associated NS is guaranteed to be live in case of
io polling, so request is guaranteed to be valid because blk-mq uses
pre-allocated request pool.
Remove the rcu read lock in nvme_ns_chr_uring_cmd_iopoll(), which
isn't needed any more after switching to request based io polling.
Fix "BUG: sleeping function called from invalid context" because
set_page_dirty_lock() from blk_rq_unmap_user() may sleep.
Fixes: 585079b6e425 ("nvme: wire up async polling for io passthrough commands")
Reported-by: Guangwu Zhang <guazhang@redhat.com>
Cc: Kanchan Joshi <joshi.k@samsung.com>
Cc: Anuj Gupta <anuj20.g@samsung.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Tested-by: Guangwu Zhang <guazhang@redhat.com>
Link: https://lore.kernel.org/r/20230809020440.174682-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-6.5-2023-08-09:
amdgpu:
- S/G display workaround for platforms with >= 64G of memory
- S0i3 fix
- SMU 13.0.0 fixes
- Disable SMU 13.x OD features temporarily while the interface is reworked
to enable additional functionality
- Fix cursor gamma issues on DCN3+
- SMU 13.0.6 fixes
- Fix possible UAF in CS IOCTL
- Polaris display regression fix
- Only enable CP GFX shadowing on SR-IOV
amdkfd:
- Raven/Picasso KFD regression fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230809182827.8135-1-alexander.deucher@amd.com
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Multiple fixes for nouveau around memory safety and DisplayPort, one fix
to reduce the log level of rockchip, a power state fix for the it6505
bridge, a timing fix for the lt9611 bridge, a cache maintenance fix for
ivpu and one to reset vma->vm_ops on mmap for shmem-helper.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/fwed6gzdtkse5ocrgd37elhyw7qirfptsvfp5mqqverdzifhxj@4da3vesxcqp2
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