Commit 59d58189f3 ("crash: fix crash memory reserve exceed system memory
bug") fails crashkernel parsing if the crash size is found to be higher
than system RAM, which makes the memory_limit adjustment code ineffective
due to an early exit from reserve_crashkernel().
Regardless lets not violate the user-specified memory limit by adjusting
it. Remove this adjustment to ensure all reservations stay within the
limit. Commit f94f5ac079 ("powerpc/fadump: Don't update the
user-specified memory limit") did the same for fadump.
Link: https://lkml.kernel.org/r/20250131113830.925179-6-sourabhjain@linux.ibm.com
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Reviewed-by: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Acked-by: Hari Bathini <hbathini@linux.ibm.com>
Cc: Baoquan he <bhe@redhat.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
On PowerPC, the memory reserved for the crashkernel can contain components
like RTAS, TCE, OPAL, etc., which should be avoided when loading kexec
segments into crashkernel memory. Due to these special components,
PowerPC has its own set of APIs to locate holes in the crashkernel memory
for loading kexec segments for kdump. However, for loading kexec segments
in the kexec case, PowerPC already uses generic APIs to locate holes.
The previous patch in this series, titled "crash: Let arch decide usable
memory range in reserved area," introduced arch-specific hook to handle
such special regions in the crashkernel area. So, switch PowerPC to use
the generic APIs to locate memory holes for kdump and remove the redundant
PowerPC-specific APIs.
Link: https://lkml.kernel.org/r/20250131113830.925179-5-sourabhjain@linux.ibm.com
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Cc: Baoquan he <bhe@redhat.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Although the crashkernel area is reserved, on architectures like PowerPC,
it is possible for the crashkernel reserved area to contain components
like RTAS, TCE, OPAL, etc. To avoid placing kexec segments over these
components, PowerPC has its own set of APIs to locate holes in the
crashkernel reserved area.
Add an arch hook in the generic locate mem hole APIs so that architectures
can handle such special regions in the crashkernel area while locating
memory holes for kexec segments using generic APIs. With this, a lot of
redundant arch-specific code can be removed, as it performs the exact same
job as the generic APIs.
To keep the generic and arch-specific changes separate, the changes
related to moving PowerPC to use the generic APIs and the removal of
PowerPC-specific APIs for memory hole allocation are done in a subsequent
patch titled "powerpc/crash: Use generic APIs to locate memory hole for
kdump.
Link: https://lkml.kernel.org/r/20250131113830.925179-4-sourabhjain@linux.ibm.com
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
cmdline argument is not used in reserve_crashkernel_generic() so remove
it. Correspondingly, all the callers have been updated as well.
No functional change intended.
Link: https://lkml.kernel.org/r/20250131113830.925179-3-sourabhjain@linux.ibm.com
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Acked-by: Hari Bathini <hbathini@linux.ibm.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "powerpc/crash: use generic crashkernel reservation", v3.
Commit 0ab97169aa ("crash_core: add generic function to do reservation")
added a generic function to reserve crashkernel memory. So let's use the
same function on powerpc and remove the architecture-specific code that
essentially does the same thing.
The generic crashkernel reservation also provides a way to split the
crashkernel reservation into high and low memory reservations, which can
be enabled for powerpc in the future.
Additionally move powerpc to use generic APIs to locate memory hole for
kexec segments while loading kdump kernel.
This patch (of 7):
kexec_elf_load() loads an ELF executable and sets the address of the
lowest PT_LOAD section to the address held by the lowest_load_addr
function argument.
To determine the lowest PT_LOAD address, a local variable lowest_addr
(type unsigned long) is initialized to UINT_MAX. After loading each
PT_LOAD, its address is compared to lowest_addr. If a loaded PT_LOAD
address is lower, lowest_addr is updated. However, setting lowest_addr to
UINT_MAX won't work when the kernel image is loaded above 4G, as the
returned lowest PT_LOAD address would be invalid. This is resolved by
initializing lowest_addr to ULONG_MAX instead.
This issue was discovered while implementing crashkernel high/low
reservation on the PowerPC architecture.
Link: https://lkml.kernel.org/r/20250131113830.925179-1-sourabhjain@linux.ibm.com
Link: https://lkml.kernel.org/r/20250131113830.925179-2-sourabhjain@linux.ibm.com
Fixes: a0458284f0 ("powerpc: Add support code for kexec_file_load()")
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Acked-by: Hari Bathini <hbathini@linux.ibm.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
In the operation of plist_requeue(), "node" is deleted from the list
before queueing it back to the list again, which involves looping to find
the tail of same-prio entries.
If "node" is the head of same-prio entries which means its prio_list is on
the priority list, then "node_next" can be retrieve immediately by the
next entry of prio_list, instead of looping nodes on node_list.
The shortcut implementation can benefit plist_requeue() running the below
test, and the test result is shown in the following table.
One can observe from the test result that when the number of nodes of
same-prio entries is smaller, then the probability of hitting the shortcut
can be bigger, thus the benefit can be more significant.
While it tends to behave almost the same for long same-prio entries, since
the probability of taking the shortcut is much smaller.
-----------------------------------------------------------------------
| Test size | 200 | 400 | 600 | 800 | 1000 |
-----------------------------------------------------------------------
| new_plist_requeue | 271521| 1007913| 2148033| 4346792| 12200940|
-----------------------------------------------------------------------
| old_plist_requeue | 301395| 1105544| 2488301| 4632980| 12217275|
-----------------------------------------------------------------------
The test is done on x86_64 architecture with v6.9 kernel and
Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz.
Test script( executed in kernel module mode ):
int init_module(void)
{
unsigned int test_data[test_size];
/* Split the list into 10 different priority
* , when test_size is larger, the number of
* nodes within each priority is larger.
*/
for (i = 0; i < ARRAY_SIZE(test_data); i++) {
test_data[i] = i % 10;
}
ktime_t start, end, time_elapsed = 0;
plist_head_init(&test_head_local);
for (i = 0; i < ARRAY_SIZE(test_node_local); i++) {
plist_node_init(test_node_local + i, 0);
test_node_local[i].prio = test_data[i];
}
for (i = 0; i < ARRAY_SIZE(test_node_local); i++) {
if (plist_node_empty(test_node_local + i)) {
plist_add(test_node_local + i, &test_head_local);
}
}
for (i = 0; i < ARRAY_SIZE(test_node_local); i += 1) {
start = ktime_get();
plist_requeue(test_node_local + i, &test_head_local);
end = ktime_get();
time_elapsed += (end - start);
}
pr_info("plist_requeue() elapsed time : %lld, size %d\n", time_elapsed, test_size);
return 0;
}
[akpm@linux-foundation.org: tweak comment and code layout]
Link: https://lkml.kernel.org/r/20250119062408.77638-1-richard120310@gmail.com
Signed-off-by: I Hsin Cheng <richard120310@gmail.com>
Cc: Ching-Chun (Jim) Huang <jserv@ccns.ncku.edu.tw>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Add a paragraph explaining what sort of capabilities a process would need
to read procfs data for some other process. Also mention that reading
data for its own process doesn't require any extra permissions.
Link: https://lkml.kernel.org/r/20250129001747.759990-1-andrii@kernel.org
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jann Horn <jannh@google.com>
Cc: Kees Cook <kees@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: "Mike Rapoport (IBM)" <rppt@kernel.org>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
There is currently no tool to extract a firmware blob that is built-in
on vmlinux to the best of my knowledge. So if we have a kernel image
containing the blobs, and we want to rebuild the kernel with some debug
patches for example (and given that the image also has IKCONFIG=y), we
currently can't do that for the same versions for all the firmware
blobs, _unless_ we have exact commits of linux-firmware for the
specific versions for each firmware included.
Through the options CONFIG_EXTRA_FIRMWARE{_DIR} one is able to build a
kernel including firmware blobs in a built-in fashion. This is usually
the case of built-in drivers that require some blobs in order to work
properly, for example, like in non-initrd based systems.
Add hereby a script to extract these blobs from a non-stripped vmlinux,
similar to the idea of "extract-ikconfig". The firmware loader interface
saves such built-in blobs as rodata entries, having a field for the FW
name as "_fw_<module_name>_<firmware_name>_bin"; the tool extracts files
named "<module_name>_<firmware_name>" for each rodata firmware entry
detected. It makes use of awk, bash, dd and readelf, pretty standard
tooling for Linux development.
With this tool, we can blindly extract the FWs and easily re-add them
in the new debug kernel build, allowing a more deterministic testing
without the burden of "hunting down" the proper version of each
firmware binary.
Link: https://lkml.kernel.org/r/20250120190436.127578-1-gpiccoli@igalia.com
Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Suggested-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
Reviewed-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Luis Chamberalin <mcgrof@kernel.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nicolas Schier <nicolas@fjasle.eu>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Russ Weight <russ.weight@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Balbir Singh is the unique maintainer of PER-TASK DELAY ACCOUNTING, and he
had started work on cgroupstats a long time back, this subsystem then is
not growing at a very rapid pace. With their excellent work delay
accounting is still very useful for observing and optimizing system delay,
but still needs continuous improvement. Yang Yang with his team had
worked for most of the recent patches of the subsystem, and he has a
strong willing to help, Balbir Singh is glad to see that, so add him as a
co-maintainer.
Link: https://lkml.kernel.org/r/20250117222013817zWHgBaSigRI_eRJt1hqnu@zte.com.cn
Signed-off-by: Yang Yang <yang.yang29@zte.com.cn>
Cc: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
It's very common for various tracing and profiling toolis to need to
access /proc/PID/maps contents for stack symbolization needs to learn
which shared libraries are mapped in memory, at which file offset, etc.
Currently, access to /proc/PID/maps requires CAP_SYS_PTRACE (unless we are
looking at data for our own process, which is a trivial case not too
relevant for profilers use cases).
Unfortunately, CAP_SYS_PTRACE implies way more than just ability to
discover memory layout of another process: it allows to fully control
arbitrary other processes. This is problematic from security POV for
applications that only need read-only /proc/PID/maps (and other similar
read-only data) access, and in large production settings CAP_SYS_PTRACE is
frowned upon even for the system-wide profilers.
On the other hand, it's already possible to access similar kind of
information (and more) with just CAP_PERFMON capability. E.g., setting up
PERF_RECORD_MMAP collection through perf_event_open() would give one
similar information to what /proc/PID/maps provides.
CAP_PERFMON, together with CAP_BPF, is already a very common combination
for system-wide profiling and observability application. As such, it's
reasonable and convenient to be able to access /proc/PID/maps with
CAP_PERFMON capabilities instead of CAP_SYS_PTRACE.
For procfs, these permissions are checked through common mm_access()
helper, and so we augment that with cap_perfmon() check *only* if
requested mode is PTRACE_MODE_READ. I.e., PTRACE_MODE_ATTACH wouldn't be
permitted by CAP_PERFMON. So /proc/PID/mem, which uses
PTRACE_MODE_ATTACH, won't be permitted by CAP_PERFMON, but /proc/PID/maps,
/proc/PID/environ, and a bunch of other read-only contents will be
allowable under CAP_PERFMON.
Besides procfs itself, mm_access() is used by process_madvise() and
process_vm_{readv,writev}() syscalls. The former one uses
PTRACE_MODE_READ to avoid leaking ASLR metadata, and as such CAP_PERFMON
seems like a meaningful allowable capability as well.
process_vm_{readv,writev} currently assume PTRACE_MODE_ATTACH level of
permissions (though for readv PTRACE_MODE_READ seems more reasonable, but
that's outside the scope of this change), and as such won't be affected by
this patch.
Link: https://lkml.kernel.org/r/20250127222114.1132392-1-andrii@kernel.org
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jann Horn <jannh@google.com>
Cc: Kees Cook <kees@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: "Mike Rapoport (IBM)" <rppt@kernel.org>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
- Use the specified $(LD) when building userprogs with Clang
- Pass the correct target triple when compile-testing UAPI headers
with Clang
- Fix pacman-pkg build error with KBUILD_OUTPUT
-----BEGIN PGP SIGNATURE-----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=V4ee
-----END PGP SIGNATURE-----
Merge tag 'kbuild-fixes-v6.14-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Use the specified $(LD) when building userprogs with Clang
- Pass the correct target triple when compile-testing UAPI headers
with Clang
- Fix pacman-pkg build error with KBUILD_OUTPUT
* tag 'kbuild-fixes-v6.14-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: install-extmod-build: Fix build when specifying KBUILD_OUTPUT
docs: Kconfig: fix defconfig description
kbuild: hdrcheck: fix cross build with clang
kbuild: userprogs: use correct lld when linking through clang
Here are some small USB driver fixes for some reported issues for
6.14-rc6. These contain:
- typec driver fixes
- dwc3 driver fixes
- xhci driver fixes
- renesas controller fixes
- gadget driver fixes
- a new USB quirk added
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZ83RpQ8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ykjuwCgtiIGxLWcgV/ZjynWswrovKFX3akAnAh6kW1G
+E7ta+MbasbGhI/Kp5pD
=iCYy
-----END PGP SIGNATURE-----
Merge tag 'usb-6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB driver fixes for some reported issues. These
contain:
- typec driver fixes
- dwc3 driver fixes
- xhci driver fixes
- renesas controller fixes
- gadget driver fixes
- a new USB quirk added
All of these have been in linux-next with no reported issues"
* tag 'usb-6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: typec: ucsi: Fix NULL pointer access
usb: quirks: Add DELAY_INIT and NO_LPM for Prolific Mass Storage Card Reader
usb: xhci: Fix host controllers "dying" after suspend and resume
usb: dwc3: Set SUSPENDENABLE soon after phy init
usb: hub: lack of clearing xHC resources
usb: renesas_usbhs: Flush the notify_hotplug_work
usb: renesas_usbhs: Use devm_usb_get_phy()
usb: renesas_usbhs: Call clk_put()
usb: dwc3: gadget: Prevent irq storm when TH re-executes
usb: gadget: Check bmAttributes only if configuration is valid
xhci: Restrict USB4 tunnel detection for USB3 devices to Intel hosts
usb: xhci: Enable the TRB overfetch quirk on VIA VL805
usb: gadget: Fix setting self-powered state on suspend
usb: typec: ucsi: increase timeout for PPM reset operations
acpi: typec: ucsi: Introduce a ->poll_cci method
usb: typec: tcpci_rt1711h: Unmask alert interrupts to fix functionality
usb: gadget: Set self-powered based on MaxPower and bmAttributes
usb: gadget: u_ether: Set is_suspend flag if remote wakeup fails
usb: atm: cxacru: fix a flaw in existing endpoint checks
Here is a single driver core fix that resolves a reported memory leak.
It's been in linux-next for 2 weeks now with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZ83SEA8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ym7mQCdHxQgl9imsXkR5hT/QwqAadAnOYAAoNW2ftG5
va3lcukik6Br13qKJchV
=86UC
-----END PGP SIGNATURE-----
Merge tag 'driver-core-6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fix from Greg KH:
"Here is a single driver core fix that resolves a reported memory leak.
It's been in linux-next for 2 weeks now with no reported problems"
* tag 'driver-core-6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
drivers: core: fix device leak in __fw_devlink_relax_cycles()
Here are a number of misc and char and iio driver fixes that have been
sitting in my tree for way too long, and should be merged for 6.14-rc6.
They contain:
- iio driver fixes for reported issues
- regression fix for rtsx_usb card reader
- mei and mhi driver fixes
- small virt driver fixes
- ntsync permissions fix
- other tiny driver fixes for reported problems.
All of these have been in linux-next for quite a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZ83Szw8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ykt1wCeMzZF9wk1OSGvUA1rZk86FFPHQd4AniYEv4Ze
/FY8PmjKxqkQhJIKCKS4
=7Jpe
-----END PGP SIGNATURE-----
Merge tag 'char-misc-6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc/IIO driver fixes from Greg KH:
"Here are a number of misc and char and iio driver fixes that have been
sitting in my tree for way too long. They contain:
- iio driver fixes for reported issues
- regression fix for rtsx_usb card reader
- mei and mhi driver fixes
- small virt driver fixes
- ntsync permissions fix
- other tiny driver fixes for reported problems.
All of these have been in linux-next for quite a while with no
reported issues"
* tag 'char-misc-6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (30 commits)
Revert "drivers/card_reader/rtsx_usb: Restore interrupt based detection"
ntsync: Check wait count based on byte size.
bus: simple-pm-bus: fix forced runtime PM use
char: misc: deallocate static minor in error path
eeprom: digsy_mtc: Make GPIO lookup table match the device
drivers: virt: acrn: hsm: Use kzalloc to avoid info leak in pmcmd_ioctl
binderfs: fix use-after-free in binder_devices
slimbus: messaging: Free transaction ID in delayed interrupt scenario
vbox: add HAS_IOPORT dependency
cdx: Fix possible UAF error in driver_override_show()
intel_th: pci: Add Panther Lake-P/U support
intel_th: pci: Add Panther Lake-H support
intel_th: pci: Add Arrow Lake support
intel_th: msu: Fix less trivial kernel-doc warnings
intel_th: msu: Fix kernel-doc warnings
MAINTAINERS: change maintainer for FSI
ntsync: Set the permissions to be 0666
bus: mhi: host: pci_generic: Use pci_try_reset_function() to avoid deadlock
mei: vsc: Use "wakeuphostint" when getting the host wakeup GPIO
mei: me: add panther lake P DID
...
* Fix a couple of bugs affecting pKVM's PSCI relay implementation
when running in the hVHE mode, resulting in the host being entered
with the MMU in an unknown state, and EL2 being in the wrong mode.
x86:
* Set RFLAGS.IF in C code on SVM to get VMRUN out of the STI shadow.
* Ensure DEBUGCTL is context switched on AMD to avoid running the guest with
the host's value, which can lead to unexpected bus lock #DBs.
* Suppress DEBUGCTL.BTF on AMD (to match Intel), as KVM doesn't properly
emulate BTF. KVM's lack of context switching has meant BTF has always been
broken to some extent.
* Always save DR masks for SNP vCPUs if DebugSwap is *supported*, as the guest
can enable DebugSwap without KVM's knowledge.
* Fix a bug in mmu_stress_tests where a vCPU could finish the "writes to RO
memory" phase without actually generating a write-protection fault.
* Fix a printf() goof in the SEV smoke test that causes build failures with
-Werror.
* Explicitly zero EAX and EBX in CPUID.0x8000_0022 output when PERFMON_V2
isn't supported by KVM.
-----BEGIN PGP SIGNATURE-----
iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmfNSeUUHHBib256aW5p
QHJlZGhhdC5jb20ACgkQv/vSX3jHroNKngf/cLgQAT9AF4nFqcwh5b5uucKHVJ8W
uTiGlWqLAf2UN53L63eZ/7vKQWGQYkOTFvormR14Jam6IYtytsZw1xLBH4fGtUyB
qVjk0EPzaKGqn3LrgyneQNCXdyxJv7EBVBgoOKH0pvOksoW2E5ZizhhtRFtL7nCE
Yk8FQKpP0mIBk04RMsvzJVEFKIb4OZgJadWo0gryg1oF2aAv7mxQjyqUWsBDsb3q
99c0ElSBfV39FeT8xeok4k7S5jbBWii2KiaH72ZsNiBu0rYmEuLwIoygCNNWL9Wu
FPdQ+r//YrzfCJSXwGPfdUaRaF4p2642S6oiXQuusNNUmhK6/MRo3mZo8A==
=XQHm
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"arm64:
- Fix a couple of bugs affecting pKVM's PSCI relay implementation
when running in the hVHE mode, resulting in the host being entered
with the MMU in an unknown state, and EL2 being in the wrong mode
x86:
- Set RFLAGS.IF in C code on SVM to get VMRUN out of the STI shadow
- Ensure DEBUGCTL is context switched on AMD to avoid running the
guest with the host's value, which can lead to unexpected bus lock
#DBs
- Suppress DEBUGCTL.BTF on AMD (to match Intel), as KVM doesn't
properly emulate BTF. KVM's lack of context switching has meant BTF
has always been broken to some extent
- Always save DR masks for SNP vCPUs if DebugSwap is *supported*, as
the guest can enable DebugSwap without KVM's knowledge
- Fix a bug in mmu_stress_tests where a vCPU could finish the "writes
to RO memory" phase without actually generating a write-protection
fault
- Fix a printf() goof in the SEV smoke test that causes build
failures with -Werror
- Explicitly zero EAX and EBX in CPUID.0x8000_0022 output when
PERFMON_V2 isn't supported by KVM"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: Explicitly zero EAX and EBX when PERFMON_V2 isn't supported by KVM
KVM: selftests: Fix printf() format goof in SEV smoke test
KVM: selftests: Ensure all vCPUs hit -EFAULT during initial RO stage
KVM: SVM: Don't rely on DebugSwap to restore host DR0..DR3
KVM: SVM: Save host DR masks on CPUs with DebugSwap
KVM: arm64: Initialize SCTLR_EL1 in __kvm_hyp_init_cpu()
KVM: arm64: Initialize HCR_EL2.E2H early
KVM: x86: Snapshot the host's DEBUGCTL after disabling IRQs
KVM: SVM: Manually context switch DEBUGCTL if LBR virtualization is disabled
KVM: x86: Snapshot the host's DEBUGCTL in common x86
KVM: SVM: Suppress DEBUGCTL.BTF on AMD
KVM: SVM: Drop DEBUGCTL[5:2] from guest's effective value
KVM: selftests: Assert that STI blocking isn't set after event injection
KVM: SVM: Set RFLAGS.IF=1 in C code, to get VMRUN out of the STI shadow
- Set RFLAGS.IF in C code on SVM to get VMRUN out of the STI shadow.
- Ensure DEBUGCTL is context switched on AMD to avoid running the guest with
the host's value, which can lead to unexpected bus lock #DBs.
- Suppress DEBUGCTL.BTF on AMD (to match Intel), as KVM doesn't properly
emulate BTF. KVM's lack of context switching has meant BTF has always been
broken to some extent.
- Always save DR masks for SNP vCPUs if DebugSwap is *supported*, as the guest
can enable DebugSwap without KVM's knowledge.
- Fix a bug in mmu_stress_tests where a vCPU could finish the "writes to RO
memory" phase without actually generating a write-protection fault.
- Fix a printf() goof in the SEV smoke test that causes build failures with
-Werror.
- Explicitly zero EAX and EBX in CPUID.0x8000_0022 output when PERFMON_V2
isn't supported by KVM.
-----BEGIN PGP SIGNATURE-----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=as6u
-----END PGP SIGNATURE-----
Merge tag 'kvm-x86-fixes-6.14-rcN.2' of https://github.com/kvm-x86/linux into HEAD
KVM x86 fixes for 6.14-rcN #2
- Set RFLAGS.IF in C code on SVM to get VMRUN out of the STI shadow.
- Ensure DEBUGCTL is context switched on AMD to avoid running the guest with
the host's value, which can lead to unexpected bus lock #DBs.
- Suppress DEBUGCTL.BTF on AMD (to match Intel), as KVM doesn't properly
emulate BTF. KVM's lack of context switching has meant BTF has always been
broken to some extent.
- Always save DR masks for SNP vCPUs if DebugSwap is *supported*, as the guest
can enable DebugSwap without KVM's knowledge.
- Fix a bug in mmu_stress_tests where a vCPU could finish the "writes to RO
memory" phase without actually generating a write-protection fault.
- Fix a printf() goof in the SEV smoke test that causes build failures with
-Werror.
- Explicitly zero EAX and EBX in CPUID.0x8000_0022 output when PERFMON_V2
isn't supported by KVM.
- Fix a couple of bugs affecting pKVM's PSCI relay implementation
when running in the hVHE mode, resulting in the host being entered
with the MMU in an unknown state, and EL2 being in the wrong mode.
-----BEGIN PGP SIGNATURE-----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=1NeA
-----END PGP SIGNATURE-----
Merge tag 'kvmarm-fixes-6.14-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 6.14, take #4
- Fix a couple of bugs affecting pKVM's PSCI relay implementation
when running in the hVHE mode, resulting in the host being entered
with the MMU in an unknown state, and EL2 being in the wrong mode.
or aren't considered necessary for -stable kernels.
26 are for MM and 7 are for non-MM.
- "mm: memory_failure: unmap poisoned folio during migrate properly"
from Ma Wupeng fixes a couple of two year old bugs involving the
migration of hwpoisoned folios.
- "selftests/damon: three fixes for false results" from SeongJae Park
fixes three one year old bugs in the SAMON selftest code.
The remainder are singletons and doubletons. Please see the individual
changelogs for details.
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZ8zgnAAKCRDdBJ7gKXxA
jmTzAP9LsTIpkPkRXDpwxPR/Si5KPwOkE6sGj4ETEqbX3vUvcAEA/Lp7oafc7Vqr
XxlC1VFush1ZK29Tecxzvnapl2/VSAs=
=zBvY
-----END PGP SIGNATURE-----
Merge tag 'mm-hotfixes-stable-2025-03-08-16-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"33 hotfixes. 24 are cc:stable and the remainder address post-6.13
issues or aren't considered necessary for -stable kernels.
26 are for MM and 7 are for non-MM.
- "mm: memory_failure: unmap poisoned folio during migrate properly"
from Ma Wupeng fixes a couple of two year old bugs involving the
migration of hwpoisoned folios.
- "selftests/damon: three fixes for false results" from SeongJae Park
fixes three one year old bugs in the SAMON selftest code.
The remainder are singletons and doubletons. Please see the individual
changelogs for details"
* tag 'mm-hotfixes-stable-2025-03-08-16-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (33 commits)
mm/page_alloc: fix uninitialized variable
rapidio: add check for rio_add_net() in rio_scan_alloc_net()
rapidio: fix an API misues when rio_add_net() fails
MAINTAINERS: .mailmap: update Sumit Garg's email address
Revert "mm/page_alloc.c: don't show protection in zone's ->lowmem_reserve[] for empty zone"
mm: fix finish_fault() handling for large folios
mm: don't skip arch_sync_kernel_mappings() in error paths
mm: shmem: remove unnecessary warning in shmem_writepage()
userfaultfd: fix PTE unmapping stack-allocated PTE copies
userfaultfd: do not block on locking a large folio with raised refcount
mm: zswap: use ATOMIC_LONG_INIT to initialize zswap_stored_pages
mm: shmem: fix potential data corruption during shmem swapin
mm: fix kernel BUG when userfaultfd_move encounters swapcache
selftests/damon/damon_nr_regions: sort collected regiosn before checking with min/max boundaries
selftests/damon/damon_nr_regions: set ops update for merge results check to 100ms
selftests/damon/damos_quota: make real expectation of quota exceeds
include/linux/log2.h: mark is_power_of_2() with __always_inline
NFS: fix nfs_release_folio() to not deadlock via kcompactd writeback
mm, swap: avoid BUG_ON in relocate_cluster()
mm: swap: use correct step in loop to wait all clusters in wait_for_allocation()
...
- Add more model IDs to the AMD microcode version check,
more people are hitting these checks
- Fix a Xen guest boot warning related to AMD northbridge
setup
- Fix SEV guest bugs related to a recent changes in its
locking logic
- Fix a missing definition of PTRS_PER_PMD that assembly
builds can hit
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-----BEGIN PGP SIGNATURE-----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=kZCC
-----END PGP SIGNATURE-----
Merge tag 'x86-urgent-2025-03-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull more x86 fixes from Ingo Molnar:
- Add more model IDs to the AMD microcode version check, more people
are hitting these checks
- Fix a Xen guest boot warning related to AMD northbridge setup
- Fix SEV guest bugs related to a recent changes in its locking logic
- Fix a missing definition of PTRS_PER_PMD that assembly builds can hit
* tag 'x86-urgent-2025-03-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode/AMD: Add some forgotten models to the SHA check
x86/mm: Define PTRS_PER_PMD for assembly code too
virt: sev-guest: Move SNP Guest Request data pages handling under snp_cmd_mutex
virt: sev-guest: Allocate request data dynamically
x86/amd_nb: Use rdmsr_safe() in amd_get_mmconfig_range()
-----BEGIN PGP SIGNATURE-----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=QG87
-----END PGP SIGNATURE-----
Merge tag 'loongarch-fixes-6.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
"Fix bugs in kernel build, hibernation, memory management and KVM"
* tag 'loongarch-fixes-6.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: KVM: Fix GPA size issue about VM
LoongArch: KVM: Reload guest CSR registers after sleep
LoongArch: KVM: Add interrupt checking for AVEC
LoongArch: Set hugetlb mmap base address aligned with pmd size
LoongArch: Set max_pfn with the PFN of the last page
LoongArch: Use polling play_dead() when resuming from hibernation
LoongArch: Eliminate superfluous get_numa_distances_cnt()
LoongArch: Convert unreachable() to BUG()
Physical address space is 48 bit on Loongson-3A5000 physical machine,
however it is 47 bit for VM on Loongson-3A5000 system. Size of physical
address space of VM is the same with the size of virtual user space (a
half) of physical machine.
Variable cpu_vabits represents user address space, kernel address space
is not included (user space and kernel space are both a half of total).
Here cpu_vabits, rather than cpu_vabits - 1, is to represent the size of
guest physical address space.
Also there is strict checking about page fault GPA address, inject error
if it is larger than maximum GPA address of VM.
Cc: stable@vger.kernel.org
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
On host, the HW guest CSR registers are lost after suspend and resume
operation. Since last_vcpu of boot CPU still records latest vCPU pointer
so that the guest CSR register skips to reload when boot CPU resumes and
vCPU is scheduled.
Here last_vcpu is cleared so that guest CSR registers will reload from
scheduled vCPU context after suspend and resume.
Cc: stable@vger.kernel.org
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
There is a newly added macro INT_AVEC with CSR ESTAT register, which is
bit 14 used for LoongArch AVEC support. AVEC interrupt status bit 14 is
supported with macro CSR_ESTAT_IS, so here replace the hard-coded value
0x1fff with macro CSR_ESTAT_IS so that the AVEC interrupt status is also
supported by KVM.
Cc: stable@vger.kernel.org
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
The current max_pfn equals to zero. In this case, it causes user cannot
get some page information through /proc filesystem such as kpagecount.
The following message is displayed by stress-ng test suite with command
"stress-ng --verbose --physpage 1 -t 1".
# stress-ng --verbose --physpage 1 -t 1
stress-ng: error: [1691] physpage: cannot read page count for address 0x134ac000 in /proc/kpagecount, errno=22 (Invalid argument)
stress-ng: error: [1691] physpage: cannot read page count for address 0x7ffff207c3a8 in /proc/kpagecount, errno=22 (Invalid argument)
stress-ng: error: [1691] physpage: cannot read page count for address 0x134b0000 in /proc/kpagecount, errno=22 (Invalid argument)
...
After applying this patch, the kernel can pass the test.
# stress-ng --verbose --physpage 1 -t 1
stress-ng: debug: [1701] physpage: [1701] started (instance 0 on CPU 3)
stress-ng: debug: [1701] physpage: [1701] exited (instance 0 on CPU 3)
stress-ng: debug: [1700] physpage: [1701] terminated (success)
Cc: stable@vger.kernel.org # 6.8+
Fixes: ff6c3d81f2 ("NUMA: optimize detection of memory with no node id assigned by firmware")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
When CONFIG_RANDOM_KMALLOC_CACHES or other randomization infrastructrue
enabled, the idle_task's stack may different between the booting kernel
and target kernel. So when resuming from hibernation, an ACTION_BOOT_CPU
IPI wakeup the idle instruction in arch_cpu_idle_dead() and jump to the
interrupt handler. But since the stack pointer is changed, the interrupt
handler cannot restore correct context.
So rename the current arch_cpu_idle_dead() to idle_play_dead(), make it
as the default version of play_dead(), and the new arch_cpu_idle_dead()
call play_dead() directly. For hibernation, implement an arch-specific
hibernate_resume_nonboot_cpu_disable() to use the polling version (idle
instruction is replace by nop, and irq is disabled) of play_dead(), i.e.
poll_play_dead(), to avoid IPI handler corrupting the idle_task's stack
when resuming from hibernation.
This solution is a little similar to commit 406f992e4a ("x86 /
hibernate: Use hlt_play_dead() when resuming from hibernation").
Cc: stable@vger.kernel.org
Tested-by: Erpeng Xu <xuerpeng@uniontech.com>
Tested-by: Yuli Wang <wangyuli@uniontech.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
When compiling on LoongArch, there exists the following objtool warning
in arch/loongarch/kernel/machine_kexec.o:
kexec_reboot() falls through to next function crash_shutdown_secondary()
Avoid using unreachable() as it can (and will in the absence of UBSAN)
generate fall-through code. Use BUG() so we get a "break BRK_BUG" trap
(with unreachable annotation).
Cc: stable@vger.kernel.org # 6.12+
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
- Fix return address recovery of traced function in ftrace to ensure
reliable stack unwinding
- Fix compiler warnings and runtime crashes of vDSO selftests on s390 by
introducing a dedicated GNU hash bucket pointer with correct 32-bit
entry size
- Fix test_monitor_call() inline asm, which misses CC clobber, by
switching to an instruction that doesn't modify CC
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAmfLedEACgkQjYWKoQLX
FBhXMQf/bIaJEOV/Ww5PWY+AqtHPpQjhP2cvOfSRoh2py38Gp1sy/6ddpn8lcl3R
skyeW4XHLpARYGg6NNOAOgFr43c7wQYrr+7uSW0zska+hOlSOi5TtycEOgu7o+VE
Nig5XRuBPc01CBokFc+gbvMTjp2fTVlzTQ2/F/B7py62j2c21Y2/n7yZ4hhfQolM
oiWlRDXzCRHM/sfa3FlML6sSgfIcHhhMSZLpdmRDhir9vBm1VpeGHa+FM5V8Pzsk
KsiuoH7+ylbw+swVn2V/p3fqfS7JoopYdng8h40eLRkeHaTi052+NmMwv8gYAnCk
BxfC1re5KlZ6kgWh0CDLUoYQHdwHxw==
=KCjH
-----END PGP SIGNATURE-----
Merge tag 's390-6.14-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Fix return address recovery of traced function in ftrace to ensure
reliable stack unwinding
- Fix compiler warnings and runtime crashes of vDSO selftests on s390
by introducing a dedicated GNU hash bucket pointer with correct
32-bit entry size
- Fix test_monitor_call() inline asm, which misses CC clobber, by
switching to an instruction that doesn't modify CC
* tag 's390-6.14-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/ftrace: Fix return address recovery of traced function
selftests/vDSO: Fix GNU hash table entry size for s390x
s390/traps: Fix test_monitor_call() inline assembly
Andy reported the following build warning from head_32.S:
In file included from arch/x86/kernel/head_32.S:29:
arch/x86/include/asm/pgtable_32.h:59:5: error: "PTRS_PER_PMD" is not defined, evaluates to 0 [-Werror=undef]
59 | #if PTRS_PER_PMD > 1
The reason is that on 2-level i386 paging the folded in PMD's
PTRS_PER_PMD constant is not defined in assembly headers,
only in generic MM C headers.
Instead of trying to fish out the definition from the generic
headers, just define it - it even has a comment for it already...
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/Z8oa8AUVyi2HWfo9@gmail.com
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEe7vIQRWZI0iWSE3xu+CwddJFiJoFAmfLZNwACgkQu+CwddJF
iJphfAgAhdxxEauNscZhXTrFn8nNSu4znrWnt3jZIxCX+rg67wteB2FXChKG7c8f
38X7rtFH0mOdtvUsZADQEZ0BUmnGb/CJBTVwTMYQ/h57DmWKI6MdiJ0ddlB1beuY
lIGvjE/cHajbuz7mTlgLtpqR83sk7ADckap4Pa04t0FgRepDbtad/XEP/BLuvN9G
zme5x+7SOpSRBLsnKWJW87GgR3cs2XlfxUHaWQ4xiGEpaW5YSr0hec5M4YiriQ5f
kARYtyFyX/lIwWlJGQwlkYlyES5W8KlAIau+1olGjqTgB6nMODqFfnVO/YA1q/uU
zJJZolaO7kJBBv1AaRKxu5Rl2EpBvQ==
=H1UU
-----END PGP SIGNATURE-----
Merge tag 'slab-for-6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fix from Vlastimil Babka:
- Stable fix for kmem_cache_destroy() called from a WQ_MEM_RECLAIM
workqueue causing a warning due to the new kvfree_rcu_barrier()
(Uladzislau Rezki)
* tag 'slab-for-6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
mm/slab/kvfree_rcu: Switch to WQ_MEM_RECLAIM wq
Restore the previous behavior of the ACPI platform_profile sysfs
interface that has been changed recently in a way incompatible
with the existing user space (Mario Limonciello).
-----BEGIN PGP SIGNATURE-----
iQFGBAABCAAwFiEEcM8Aw/RY0dgsiRUR7l+9nS/U47UFAmfLW54SHHJqd0Byand5
c29ja2kubmV0AAoJEO5fvZ0v1OO1VOUIAJwwmxAcJGHxbOPvK5r7jO/Rq4XFbMuT
ftNEX+awNFcBFtm7dgxhTjqZUFDDntvB/+BDuBMz1xsP2QRsW38R84hiVlJgisT1
XlMdqXalYQgN/MEQvS22AudyLBuWw1+/i9d8rZOf73wA9thOt5KrJa5IIieT1oJe
kd5Kf3onrmwSv5h38NqKkUzO2QdY5rluUG47HIaiNpe+HODDwf2NU335CUV4V69q
t6LKEoiSJ7Ziv7a5morXXu2Y26eTjK9kG8insGCgp/oK+nyxx5K8a7i/d8Hlp92b
X21G4P278lYTBDR4QoJrhKPyLqvNUx9qQ7KHXrNPZGY/c+g31yfvWC8=
=c0sa
-----END PGP SIGNATURE-----
Merge tag 'acpi-6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Restore the previous behavior of the ACPI platform_profile sysfs
interface that has been changed recently in a way incompatible with
the existing user space (Mario Limonciello)"
* tag 'acpi-6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
platform/x86/amd: pmf: Add balanced-performance to hidden choices
platform/x86/amd: pmf: Add 'quiet' to hidden choices
ACPI: platform_profile: Add support for hidden choices
- coredump: Only sort VMAs when core_sort_vma sysctl is set
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRSPkdeREjth1dHnSE2KwveOeQkuwUCZ8tUbwAKCRA2KwveOeQk
u7VHAQDde9UqJ/meeBFhsEW7Fn3dMDL0bTTAJTKMw1YV4D7IiQEAjHBz9JKqrvXO
pAMV9IoPsjpDKnz9aUWW+geJhjPsLQ8=
=RFog
-----END PGP SIGNATURE-----
Merge tag 'execve-v6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull core dumping fix from Kees Cook:
- Only sort VMAs when core_sort_vma sysctl is set
* tag 'execve-v6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
coredump: Only sort VMAs when core_sort_vma sysctl is set
-----BEGIN PGP SIGNATURE-----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=v6KI
-----END PGP SIGNATURE-----
Merge tag 'for-6.14-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- fix leaked extent map after error when reading chunks
- replace use of deprecated strncpy
- in zoned mode, fixed range when ulocking extent range, causing a hang
* tag 'for-6.14-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix a leaked chunk map issue in read_one_chunk()
btrfs: replace deprecated strncpy() with strscpy()
btrfs: zoned: fix extent range end unlock in cow_file_range()
-----BEGIN PGP SIGNATURE-----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=jKDe
-----END PGP SIGNATURE-----
Merge tag 'block-6.14-20250306' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- NVMe pull request via Keith:
- TCP use after free fix on polling (Sagi)
- Controller memory buffer cleanup fixes (Icenowy)
- Free leaking requests on bad user passthrough commands (Keith)
- TCP error message fix (Maurizio)
- TCP corruption fix on partial PDU (Maurizio)
- TCP memory ordering fix for weakly ordered archs (Meir)
- Type coercion fix on message error for TCP (Dan)
- Name the RQF flags enum, fixing issues with anon enums and BPF import
of it
- ublk parameter setting fix
- GPT partition 7-bit conversion fix
* tag 'block-6.14-20250306' of git://git.kernel.dk/linux:
block: Name the RQF flags enum
nvme-tcp: fix signedness bug in nvme_tcp_init_connection()
block: fix conversion of GPT partition name to 7-bit
ublk: set_params: properly check if parameters can be applied
nvmet-tcp: Fix a possible sporadic response drops in weakly ordered arch
nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()
nvme-tcp: Fix a C2HTermReq error message
nvmet: remove old function prototype
nvme-ioctl: fix leaked requests on mapping error
nvme-pci: skip CMB blocks incompatible with PCI P2P DMA
nvme-pci: clean up CMBMSC when registering CMB fails
nvme-tcp: fix possible UAF in nvme_tcp_poll
-----BEGIN PGP SIGNATURE-----
iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmfKQpsQHGF4Ym9lQGtl
cm5lbC5kawAKCRD301j7KXHgphWWD/0Qi6/RyM71So/U3kB6HkwgDd3w7JdeWcmB
EZN9qaALS3r/3Q/qNQTT6/2dLNvjw/MWAlLV7R511x7f+9lMJp6KxTyTkmxXbkd6
yTMAm5E19vE1zeQZvHP9SzRKU5o2mh7yVnkNxHqqVbAzePtRGFGPLG/gQ4zCDq7I
iqThGN4Hf5hZYM6QH6R25b/iljYYyr6kF8l96TLiY/QKp4ZTPR+dKjV4xfXFnVeF
BjC/SzvQQqyHFDtpoXWeUemcxAE2tzPhAZ6w2p/56S2rkbfpxsWnwF+Ut4tteb0R
pSBehvxfzkD9hBlADDRja0KK+WM95RBNJ0/Pf7dNBhqC3jhxNFH3FcBf66ot43fH
8Jjshq9Wi5Zfdr176VzZCgpSSVihluctNRTpgDCR81289WsdBnpkhPXE0NSfw5su
iulG3kjKJwQmIO/k+S5dBvT9/X+FzjQCuV4abuVyeDVJo2IXKbzGbWqp3ueUNuic
kprQwEhcyPYtiVXpwsssnEMYjVx0pUc9FIM72ed+5hoaH+BejuGFHNAkKUOhCSvi
S3SM4gVHZE4soDU8wevRuU4Kgag+pW/z1EYltA7DKcTJMGx9gO+uFlUJTSXoOFzO
3kD4oXwnMc/CfHxAGWOWeCiANGaWnEkJYmwGG/0R80oG9Usji43ucErvs3p6zRTE
iNFs/IfwPw==
=v5sq
-----END PGP SIGNATURE-----
Merge tag 'io_uring-6.14-20250306' of git://git.kernel.dk/linux
Pull io_uring fix from Jens Axboe:
"A single fix for a regression introduced in the 6.14 merge window,
causing stalls/hangs with IOPOLL reads or writes"
* tag 'io_uring-6.14-20250306' of git://git.kernel.dk/linux:
io_uring/rw: ensure reissue path is correctly handled for IOPOLL
- xgene-hwmon: Fix a NULL vs IS_ERR_OR_NULL() check
- ad7314: Return error if leading zero bits are non-zero
- ntc_thermistor: Update/fix the ncpXXxh103 sensor table
- pmbus: Initialise page count in pmbus_identify()
- peci/dimmtemp: Di not provide fake threshold data
-----BEGIN PGP SIGNATURE-----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=naYk
-----END PGP SIGNATURE-----
Merge tag 'hwmon-for-v6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- xgene-hwmon: Fix a NULL vs IS_ERR_OR_NULL() check
- ad7314: Return error if leading zero bits are non-zero
- ntc_thermistor: Update/fix the ncpXXxh103 sensor table
- pmbus: Initialise page count in pmbus_identify()
- peci/dimmtemp: Do not provide fake threshold data
* tag 'hwmon-for-v6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: fix a NULL vs IS_ERR_OR_NULL() check in xgene_hwmon_probe()
hwmon: (ad7314) Validate leading zero bits and return error
hwmon: (ntc_thermistor) Fix the ncpXXxh103 sensor table
hwmon: (pmbus) Initialise page count in pmbus_identify()
hwmon: (peci/dimmtemp) Do not provide fake thresholds data
- protect gpio-aggregator against module unload
- use raw spinlock in gpio-rcar to fix a lockdep splat
- fix OF node leak in gpio-rcar
-----BEGIN PGP SIGNATURE-----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=MgMW
-----END PGP SIGNATURE-----
Merge tag 'gpio-fixes-for-v6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- protect gpio-aggregator against module unload
- use raw spinlock in gpio-rcar to fix a lockdep splat
- fix OF node leak in gpio-rcar
* tag 'gpio-fixes-for-v6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: rcar: Fix missing of_node_put() call
gpio: rcar: Use raw_spinlock to protect register access
gpio: aggregator: protect driver attr handlers against module unload
Fixes and new HW support:
- amd/pmf:
- Initialize 'cb_mutex'
- Support for new version of PMF-TA
- intel-hid: Fix volume buttons on Microsoft Surface Go 4 tablet
- intel/vsec: Add Diamond Rapids support
- thinkpad_acpi: Add battery quirk for ThinkPad X131e
The following is an automated shortlog grouped by driver:
amd/pmf:
- Initialize and clean up `cb_mutex`
- Propagate PMF-TA return codes
- Update PMF Driver for Compatibility with new PMF-TA
intel-hid:
- fix volume buttons on Microsoft Surface Go 4 tablet
intel/vsec:
- Add Diamond Rapids support
thinkpad_acpi:
- Add battery quirk for ThinkPad X131e
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQSCSUwRdwTNL2MhaBlZrE9hU+XOMQUCZ8rDZAAKCRBZrE9hU+XO
McQhAQDw1Vf8jKrdK3X80DNSuIToO5B4dpX+PB8r4xgK96ipqgD9GKxHW1tbGqHH
vUTEqwcpDwBMe+wDRbD31SBaZUSgXwo=
=wZNA
-----END PGP SIGNATURE-----
Merge tag 'platform-drivers-x86-v6.14-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Ilpo Järvinen:
- amd/pmf:
- Initialize 'cb_mutex'
- Support for new version of PMF-TA
- intel-hid: Fix volume buttons on Microsoft Surface Go 4 tablet
- intel/vsec: Add Diamond Rapids support
- thinkpad_acpi: Add battery quirk for ThinkPad X131e
* tag 'platform-drivers-x86-v6.14-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86/amd/pmf: Update PMF Driver for Compatibility with new PMF-TA
platform/x86/amd/pmf: Propagate PMF-TA return codes
platform/x86/intel/vsec: Add Diamond Rapids support
platform/x86: thinkpad_acpi: Add battery quirk for ThinkPad X131e
platform/x86: intel-hid: fix volume buttons on Microsoft Surface Go 4 tablet
platform/x86/amd/pmf: Initialize and clean up `cb_mutex`
There is a single change in ALSA core (for sequencer code for the
module auto-loading in a wrong timing) while the all rest are various
HD- and USB-audio fixes. Many of them are boring device-specific
quirks, and should be safe to take.
-----BEGIN PGP SIGNATURE-----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=0M0k
-----END PGP SIGNATURE-----
Merge tag 'sound-6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"There is a single change in ALSA core (for sequencer code for the
module auto-loading in a wrong timing) while the all rest are various
HD- and USB-audio fixes.
Many of them are boring device-specific quirks, and should be safe to
take"
* tag 'sound-6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek: Add support for ASUS Zenbook UM3406KA Laptops using CS35L41 HDA
ALSA: hda/realtek: Add support for ASUS B5405 and B5605 Laptops using CS35L41 HDA
ALSA: hda/realtek: Add support for ASUS B3405 and B3605 Laptops using CS35L41 HDA
ALSA: hda/realtek: Add support for various ASUS Laptops using CS35L41 HDA
ALSA: hda/realtek: Add support for ASUS ROG Strix G614 Laptops using CS35L41 HDA
ALSA: hda/realtek: Add support for ASUS ROG Strix GA603 Laptops using CS35L41 HDA
ALSA: hda/realtek: Add support for ASUS ROG Strix G814 Laptop using CS35L41 HDA
ALSA: hda: intel: Add Dell ALC3271 to power_save denylist
ALSA: hda/realtek: update ALC222 depop optimize
ALSA: hda: realtek: fix incorrect IS_REACHABLE() usage
ALSA: usx2y: validate nrpacks module parameter on probe
ALSA: hda/realtek - add supported Mic Mute LED for Lenovo platform
ALSA: seq: Avoid module auto-load handling at event delivery
ALSA: hda: Fix speakers on ASUS EXPERTBOOK P5405CSA 1.0
ALSA: hda/realtek: Fix Asus Z13 2025 audio
ALSA: hda/realtek: Remove (revert) duplicate Ally X config
Compared to the SNP Guest Request, the "Extended" version adds data pages for
receiving certificates. If not enough pages provided, the HV can report to the
VM how much is needed so the VM can reallocate and repeat.
Commit
ae596615d9 ("virt: sev-guest: Reduce the scope of SNP command mutex")
moved handling of the allocated/desired pages number out of scope of said
mutex and create a possibility for a race (multiple instances trying to
trigger Extended request in a VM) as there is just one instance of
snp_msg_desc per /dev/sev-guest and no locking other than snp_cmd_mutex.
Fix the issue by moving the data blob/size and the GHCB input struct
(snp_req_data) into snp_guest_req which is allocated on stack now and accessed
by the GHCB caller under that mutex.
Stop allocating SEV_FW_BLOB_MAX_SIZE in snp_msg_alloc() as only one of four
callers needs it. Free the received blob in get_ext_report() right after it is
copied to the userspace. Possible future users of snp_send_guest_request() are
likely to have different ideas about the buffer size anyways.
Fixes: ae596615d9 ("virt: sev-guest: Reduce the scope of SNP command mutex")
Signed-off-by: Alexey Kardashevskiy <aik@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Nikunj A Dadhania <nikunj@amd.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250307013700.437505-3-aik@amd.com
Commit
ae596615d9 ("virt: sev-guest: Reduce the scope of SNP command mutex")
narrowed the command mutex scope to snp_send_guest_request(). However,
GET_REPORT, GET_DERIVED_KEY, and GET_EXT_REPORT share the req structure in
snp_guest_dev. Without the mutex protection, concurrent requests can overwrite
each other's data. Fix it by dynamically allocating the request structure.
Fixes: ae596615d9 ("virt: sev-guest: Reduce the scope of SNP command mutex")
Closes: https://github.com/AMDESE/AMDSEV/issues/265
Reported-by: andreas.stuehrk@yaxi.tech
Signed-off-by: Nikunj A Dadhania <nikunj@amd.com>
Signed-off-by: Alexey Kardashevskiy <aik@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250307013700.437505-2-aik@amd.com
Xen doesn't offer MSR_FAM10H_MMIO_CONF_BASE to all guests. This results
in the following warning:
unchecked MSR access error: RDMSR from 0xc0010058 at rIP: 0xffffffff8101d19f (xen_do_read_msr+0x7f/0xa0)
Call Trace:
xen_read_msr+0x1e/0x30
amd_get_mmconfig_range+0x2b/0x80
quirk_amd_mmconfig_area+0x28/0x100
pnp_fixup_device+0x39/0x50
__pnp_add_device+0xf/0x150
pnp_add_device+0x3d/0x100
pnpacpi_add_device_handler+0x1f9/0x280
acpi_ns_get_device_callback+0x104/0x1c0
acpi_ns_walk_namespace+0x1d0/0x260
acpi_get_devices+0x8a/0xb0
pnpacpi_init+0x50/0x80
do_one_initcall+0x46/0x2e0
kernel_init_freeable+0x1da/0x2f0
kernel_init+0x16/0x1b0
ret_from_fork+0x30/0x50
ret_from_fork_asm+0x1b/0x30
based on quirks for a "PNP0c01" device. Treating MMCFG as disabled is the
right course of action, so no change is needed there.
This was most likely exposed by fixing the Xen MSR accessors to not be
silently-safe.
Fixes: 3fac3734c4 ("xen/pv: support selecting safe/unsafe msr accesses")
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20250307002846.3026685-1-andrew.cooper3@citrix.com
