In order to remove internal.h make signal.h independent of it.
Include asm/fpu/xstate.h to fix a missing update_regset_xstate_info()
prototype, which is
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011539.844565975@linutronix.de
Move function declarations which need to be globally available to api.h
where they belong.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011539.792363754@linutronix.de
Only used internally in the FPU core code.
While at it, convert to the percpu accessors which verify preemption is
disabled.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011539.686806639@linutronix.de
Further disintegration of internal.h:
Move the CPU feature tests to a core header and remove the unused one.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011539.401510559@linutronix.de
internal.h is a kitchen sink which needs to get out of the way to prepare
for the upcoming changes.
Move the context switch and exit to user inlines into a separate header,
which is all that code needs.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011539.349132461@linutronix.de
Prepare for replacing the KVM copy xstate to user function by extending
copy_xstate_to_uabi_buf() with a pkru argument which allows the caller to
hand in the pkru value, which is required for KVM because the guest PKRU is
not accessible via current. Fixup all callsites accordingly.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011539.191902137@linutronix.de
Copying a user space buffer to the memory buffer is already available in
the FPU core. The copy mechanism in KVM lacks sanity checks and needs to
use cpuid() to lookup the offset of each component, while the FPU core has
this information cached.
Make the FPU core variant accessible for KVM and replace the home brewed
mechanism.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: kvm@vger.kernel.org
Link: https://lkml.kernel.org/r/20211015011539.134065207@linutronix.de
Swapping the host/guest FPU is directly fiddling with FPU internals which
requires 5 exports. The upcoming support of dynamically enabled states
would even need more.
Implement a swap function in the FPU core code and export that instead.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org
Link: https://lkml.kernel.org/r/20211015011539.076072399@linutronix.de
These loops evaluating xfeature bits are really hard to read. Create an
iterator and use for_each_set_bit_from() inside which already does the right
thing.
No functional changes.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011538.958107505@linutronix.de
No point in having this duplicated all over the place with needlessly
different defines.
Provide a proper initialization function which initializes user buffers
properly and make KVM use it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011538.897664678@linutronix.de
There is no reason why kernel and IO worker threads need a full clone of
the parent's FPU state. Both are kernel threads which are not supposed to
use FPU. So copying a large state or doing XSAVE() is pointless. Just clean
out the minimally required state for those tasks.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011538.839822981@linutronix.de
There is no reason to clone FPU in arch_dup_task_struct(). Quite the
contrary - it prevents optimizations. Move it to copy_thread().
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011538.780714235@linutronix.de
Zeroing the forked task's FPU registers buffer to avoid leaking init
optimized stale data into the clone is a pointless exercise for the case
where the current task has TIF_NEED_FPU_LOAD set. In that case, the FPU
registers state is copied from current's FPU register buffer which can
contain stale init optimized data as well.
The alledged information leak is non-existant because this stale init
optimized data is used nowhere and cannot leak anywhere.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011538.722854569@linutronix.de
These interfaces are really only valid for features which are independently
managed and not part of the task context state for various reasons.
Tighten the checks and adjust the misleading comments.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011538.608492174@linutronix.de
PKRU code does not need anything from FPU headers. Include cpufeature.h
instead and fixup the resulting fallout in perf.
This is a preparation for FPU changes in order to prevent recursive include
hell.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011538.551522694@linutronix.de
copy_fpstate_to_sigframe() does not have a slow path anymore. Neither does
the !ia32 restore in __fpu_restore_sig().
Update the comments accordingly.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011538.493570236@linutronix.de
Resolve the conflict between these commits:
x86/fpu: 1193f408cd ("x86/fpu/signal: Change return type of __fpu_restore_sig() to boolean")
x86/urgent: d298b03506 ("x86/fpu: Restore the masking out of reserved MXCSR bits")
b2381acd3f ("x86/fpu: Mask out the invalid MXCSR bits properly")
Conflicts:
arch/x86/kernel/fpu/signal.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This is a fix for the fix (yeah, /facepalm).
The correct mask to use is not the negation of the MXCSR_MASK but the
actual mask which contains the supported bits in the MXCSR register.
Reported and debugged by Ville Syrjälä <ville.syrjala@linux.intel.com>
Fixes: d298b03506 ("x86/fpu: Restore the masking out of reserved MXCSR bits")
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Ser Olmy <ser.olmy@protonmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/YWgYIYXLriayyezv@intel.com
This Kconfig option was added initially so that memory encryption is
enabled by default on machines which support it.
However, devices which have DMA masks that are less than the bit
position of the encryption bit, aka C-bit, require the use of an IOMMU
or the use of SWIOTLB.
If the IOMMU is disabled or in passthrough mode, the kernel would switch
to SWIOTLB bounce-buffering for those transfers.
In order to avoid that,
2cc13bb4f5 ("iommu: Disable passthrough mode when SME is active")
disables the default IOMMU passthrough mode so that devices for which the
default 256K DMA is insufficient, can use the IOMMU instead.
However 2, there are cases where the IOMMU is disabled in the BIOS, etc.
(think the usual hardware folk "oops, I dropped the ball there" cases) or a
driver doesn't properly use the DMA APIs or a device has a firmware or
hardware bug, e.g.:
ea68573d40 ("drm/amdgpu: Fail to load on RAVEN if SME is active")
However 3, in the above GPU use case, there are APIs like Vulkan and
some OpenGL/OpenCL extensions which are under the assumption that
user-allocated memory can be passed in to the kernel driver and both the
GPU and CPU can do coherent and concurrent access to the same memory.
That cannot work with SWIOTLB bounce buffers, of course.
So, in order for those devices to function, drop the "default y" for the
SME by default active option so that users who want to have SME enabled,
will need to either enable it in their config or use "mem_encrypt=on" on
the kernel command line.
[ tlendacky: Generalize commit message. ]
Fixes: 7744ccdbc1 ("x86/mm: Add Secure Memory Encryption (SME) support")
Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/8bbacd0e-4580-3194-19d2-a0ecad7df09c@molgen.mpg.de
Fix a regression hit by the IPR SCSI driver, introduced by the recent addition of MSI
domains on pseries.
A big series including 8 BPF fixes, some with potential security impact and the rest
various code generation issues.
Fix our program check assembler entry path, which was accidentally jumping into a gas
macro and generating strange stack frames, which could confuse find_bug().
A couple of fixes, and related changes, to fix corner cases in our machine check handling.
Fix our DMA IOMMU ops, which were not always returning the optimal DMA mask, leading to
at least one device falling back to 32-bit DMA when it shouldn't.
A fix for KUAP handling on 32-bit Book3S.
Fix crashes seen when kdumping on some pseries systems.
Thanks to: Naveen N. Rao, Nicholas Piggin, Alexey Kardashevskiy, Cédric Le Goater,
Christophe Leroy, Mahesh Salgaonkar, Abdul Haleem, Christoph Hellwig, Johan Almbladh, Stan
Johnson.
-----BEGIN PGP SIGNATURE-----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=q+1t
-----END PGP SIGNATURE-----
Merge tag 'powerpc-5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"A bit of a big batch, partly because I didn't send any last week, and
also just because the BPF fixes happened to land this week.
Summary:
- Fix a regression hit by the IPR SCSI driver, introduced by the
recent addition of MSI domains on pseries.
- A big series including 8 BPF fixes, some with potential security
impact and the rest various code generation issues.
- Fix our program check assembler entry path, which was accidentally
jumping into a gas macro and generating strange stack frames, which
could confuse find_bug().
- A couple of fixes, and related changes, to fix corner cases in our
machine check handling.
- Fix our DMA IOMMU ops, which were not always returning the optimal
DMA mask, leading to at least one device falling back to 32-bit DMA
when it shouldn't.
- A fix for KUAP handling on 32-bit Book3S.
- Fix crashes seen when kdumping on some pseries systems.
Thanks to Naveen N. Rao, Nicholas Piggin, Alexey Kardashevskiy, Cédric
Le Goater, Christophe Leroy, Mahesh Salgaonkar, Abdul Haleem,
Christoph Hellwig, Johan Almbladh, Stan Johnson"
* tag 'powerpc-5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
pseries/eeh: Fix the kdump kernel crash during eeh_pseries_init
powerpc/32s: Fix kuap_kernel_restore()
powerpc/pseries/msi: Add an empty irq_write_msi_msg() handler
powerpc/64s: Fix unrecoverable MCE calling async handler from NMI
powerpc/64/interrupt: Reconcile soft-mask state in NMI and fix false BUG
powerpc/64: warn if local irqs are enabled in NMI or hardirq context
powerpc/traps: do not enable irqs in _exception
powerpc/64s: fix program check interrupt emergency stack path
powerpc/bpf ppc32: Fix BPF_SUB when imm == 0x80000000
powerpc/bpf ppc32: Do not emit zero extend instruction for 64-bit BPF_END
powerpc/bpf ppc32: Fix JMP32_JSET_K
powerpc/bpf ppc32: Fix ALU32 BPF_ARSH operation
powerpc/bpf: Emit stf barrier instruction sequences for BPF_NOSPEC
powerpc/security: Add a helper to query stf_barrier type
powerpc/bpf: Fix BPF_SUB when imm == 0x80000000
powerpc/bpf: Fix BPF_MOD when imm == 1
powerpc/bpf: Validate branch ranges
powerpc/lib: Add helper to check if offset is within conditional branch range
powerpc/iommu: Report the correct most efficient DMA mask for PCI devices
- Align .altinstructions section creation with the kernel's by creating
them with entry size of 0
- Fix objtool to convert a reloc symbol to a section offset and not to
not warn about not knowing how
-----BEGIN PGP SIGNATURE-----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=0JCB
-----END PGP SIGNATURE-----
Merge tag 'objtool_urgent_for_v5.15_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fixes from Borislav Petkov:
- Remove an extra section.len member in favour of section.sh_size
- Align .altinstructions section creation with the kernel's by creating
them with entry size of 0
- Fix objtool to convert a reloc symbol to a section offset and not to
not warn about not knowing how
* tag 'objtool_urgent_for_v5.15_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Remove redundant 'len' field from struct section
objtool: Make .altinstructions section entry size consistent
objtool: Remove reloc symbol type checks in get_alt_entry()
out due to histerical reasons and 64-bit kernels reject them
- A fix to clear X86_FEATURE_SMAP when support for is not config-enabled
- Three fixes correcting misspelled Kconfig symbols used in code
- Two resctrl object cleanup fixes
- Yet another attempt at fixing the neverending saga of botched x86
timers, this time because some incredibly smart hardware decides to turn
off the HPET timer in a low power state - who cares if the OS is relying
on it...
- Check the full return value range of an SEV VMGEXIT call to determine
whether it returned an error
-----BEGIN PGP SIGNATURE-----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=kKOw
-----END PGP SIGNATURE-----
Merge tag 'x86_urgent_for_v5.15_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- A FPU fix to properly handle invalid MXCSR values: 32-bit masks them
out due to historical reasons and 64-bit kernels reject them
- A fix to clear X86_FEATURE_SMAP when support for is not
config-enabled
- Three fixes correcting misspelled Kconfig symbols used in code
- Two resctrl object cleanup fixes
- Yet another attempt at fixing the neverending saga of botched x86
timers, this time because some incredibly smart hardware decides to
turn off the HPET timer in a low power state - who cares if the OS is
relying on it...
- Check the full return value range of an SEV VMGEXIT call to determine
whether it returned an error
* tag 'x86_urgent_for_v5.15_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fpu: Restore the masking out of reserved MXCSR bits
x86/Kconfig: Correct reference to MWINCHIP3D
x86/platform/olpc: Correct ifdef symbol to intended CONFIG_OLPC_XO15_SCI
x86/entry: Clear X86_FEATURE_SMAP when CONFIG_X86_SMAP=n
x86/entry: Correct reference to intended CONFIG_64_BIT
x86/resctrl: Fix kfree() of the wrong type in domain_add_cpu()
x86/resctrl: Free the ctrlval arrays when domain_setup_mon_state() fails
x86/hpet: Use another crystalball to evaluate HPET usability
x86/sev: Return an error on a returned non-zero SW_EXITINFO1[31:0]
Pull i2c fixes from Wolfram Sang:
"Three driver bugfixes and one leak fix for the core"
* 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: mlxcpld: Modify register setting for 400KHz frequency
i2c: mlxcpld: Fix criteria for frequency setting
i2c: mediatek: Add OFFSET_EXT_CONF setting back
i2c: acpi: fix resource leak in reconfiguration device addition
Five fixes, all in drivers. The big change is the UFS task management
rework, with lpfc next and the rest being fairly minor and obvious
fixes.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
-----BEGIN PGP SIGNATURE-----
iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCYWIPiiYcamFtZXMuYm90
dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishUSEAP42mqta
/gnTiF8f0uImcTyEuejT0ujbGNWnViMnNd2WawD/astuYIZjkGnrPFCGP4ABK6Mh
uRg8HqcFXXgj2Rb7nzs=
=ZwGg
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Five fixes, all in drivers.
The big change is the UFS task management rework, with lpfc next and
the rest being fairly minor and obvious fixes"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: iscsi: Fix iscsi_task use after free
scsi: lpfc: Fix memory overwrite during FC-GS I/O abort handling
scsi: elx: efct: Delete stray unlock statement
scsi: ufs: core: Fix task management completion
scsi: acornscsi: Remove scsi_cmd_to_tag() reference
-----BEGIN PGP SIGNATURE-----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=9ERH
-----END PGP SIGNATURE-----
Merge tag '5.15-rc4-ksmbd-fixes' of git://git.samba.org/ksmbd
Pull ksmbd fixes from Steve French:
"Six fixes for the ksmbd kernel server, including two additional
overflow checks, a fix for oops, and some cleanup (e.g. remove dead
code for less secure dialects that has been removed)"
* tag '5.15-rc4-ksmbd-fixes' of git://git.samba.org/ksmbd:
ksmbd: fix oops from fuse driver
ksmbd: fix version mismatch with out of tree
ksmbd: use buf_data_size instead of recalculation in smb3_decrypt_req()
ksmbd: remove the leftover of smb2.0 dialect support
ksmbd: check strictly data area in ksmbd_smb2_check_message()
ksmbd: add the check to vaildate if stream protocol length exceeds maximum value
* A pair of fixes (along with the necessary cleanup) to our VDSO, to
avoid
* A fix to checksyscalls to teach it about our rv32 UABI.
* A fix to add clone3() to the rv32 UABI, which was pointed out by
checksyscalls.
* A fix to properly flush the icache on the local CPU in addition to the
remote CPUs.
-----BEGIN PGP SIGNATURE-----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=+mKs
-----END PGP SIGNATURE-----
Merge tag 'riscv-for-linus-5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A pair of fixes (along with the necessory cleanup) to our VDSO, to
avoid a locking during OOM and to prevent the text from overflowing
into the data page
- A fix to checksyscalls to teach it about our rv32 UABI
- A fix to add clone3() to the rv32 UABI, which was pointed out by
checksyscalls
- A fix to properly flush the icache on the local CPU in addition to
the remote CPUs
* tag 'riscv-for-linus-5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
checksyscalls: Unconditionally ignore fstat{,at}64
riscv: Flush current cpu icache before other cpus
RISC-V: Include clone3() on rv32
riscv/vdso: make arch_setup_additional_pages wait for mmap_sem for write killable
riscv/vdso: Move vdso data page up front
riscv/vdso: Refactor asm/vdso.h
- Fix potential memory leak on a error path in eBPF.
- Fix handling of zpci device on reserve.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAmFg0FoACgkQjYWKoQLX
FBg3jgf8DLCs6JwK8GOz40CuZsajARwuagZy0udc3GbcZVNUog6GP7hJBU6q8pkm
JQMTl1C7Pe81p/aTOx2IIplV+owAVRnwdNBmj/psmZrI5P0CvLtTc4gVuCZJHJy4
9qt83KocgrN4G2K7qZDfiEAv+Ae/F7r20K5ZBX0exZBkOFeXZzUYVwWxM3pV45XB
Zx5AWmpHGGZFaS3EKW7E5VqswlGYIfUzGaXezN/cIl5HzMqqQMYo77eCJAWr//1z
s2s+vvEUBLGuHS8pDdXq8qR7Fq93cJSS7eo5zLVgtyZHr3Nn3+IlA0WKmPU3SmPE
+19I3L5hR0Ap6xh4ASgxciexnXFttQ==
=bGB2
-----END PGP SIGNATURE-----
Merge tag 's390-5.15-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Fix potential memory leak on a error path in eBPF
- Fix handling of zpci device on reserve
* tag 's390-5.15-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/pci: fix zpci_zdev_put() on reserve
bpf, s390: Fix potential memory leak about jit_data
- fix build/boot issues caused by CONFIG_OF vs CONFIC_USE_OF usage
- fix reset handler for xtfpga boards
-----BEGIN PGP SIGNATURE-----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=kGqD
-----END PGP SIGNATURE-----
Merge tag 'xtensa-20211008' of git://github.com/jcmvbkbc/linux-xtensa
Pull xtensa fixes from Max Filippov:
- fix build/boot issues caused by CONFIG_OF vs CONFIC_USE_OF usage
- fix reset handler for xtfpga boards
* tag 'xtensa-20211008' of git://github.com/jcmvbkbc/linux-xtensa:
xtensa: xtfpga: Try software restart before simulating CPU reset
xtensa: xtfpga: use CONFIG_USE_OF instead of CONFIG_OF
xtensa: call irqchip_init only when CONFIG_USE_OF is selected
xtensa: use CONFIG_USE_OF instead of CONFIG_OF
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCYWBSIwAKCRCAXGG7T9hj
vrXxAP9na1EqRJ+SpWyvxHY1jMaIrbg1bgnOc+GsnWxU5liW5AEA4h1HjHtVtrzL
3vweIS6u2fanrWlYML/daQ3r6EuLPQc=
=iXsP
-----END PGP SIGNATURE-----
Merge tag 'for-linus-5.15b-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
- fix two minor issues in the Xen privcmd driver plus a cleanup patch
for that driver
- fix multiple issues related to running as PVH guest and some related
earlyprintk fixes for other Xen guest types
- fix an issue introduced in 5.15 the Xen balloon driver
* tag 'for-linus-5.15b-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/balloon: fix cancelled balloon action
xen/x86: adjust data placement
x86/PVH: adjust function/data placement
xen/x86: hook up xen_banner() also for PVH
xen/x86: generalize preferred console model from PV to PVH Dom0
xen/x86: make "earlyprintk=xen" work for HVM/PVH DomU
xen/x86: allow "earlyprintk=xen" to work for PV Dom0
xen/x86: make "earlyprintk=xen" work better for PVH Dom0
xen/x86: allow PVH Dom0 without XEN_PV=y
xen/x86: prevent PVH type from getting clobbered
xen/privcmd: drop "pages" parameter from xen_remap_pfn()
xen/privcmd: fix error handling in mmap-resource processing
xen/privcmd: replace kcalloc() by kvcalloc() when allocating empty pages
There is one build fix for Arm platforms that ended up impacting most
architectures because of the way the drivers/firmware Kconfig file is
wired up:
The CONFIG_QCOM_SCM dependency have caused a number of randconfig
regressions over time, and some still remain in v5.15-rc4. The
fix we agreed on in the end is to make this symbol selected by any
driver using it, and then building it even for non-Arm platforms with
CONFIG_COMPILE_TEST.
To make this work on all architectures, the drivers/firmware/Kconfig
file needs to be included for all architectures to make the symbol
itself visible.
In a separate discussion, we found that a sound driver patch that is
pending for v5.16 needs the same change to include this Kconfig file,
so the easiest solution seems to have my Kconfig rework included in v5.15.
There is a small merge conflict against an earlier partial fix for the
QCOM_SCM dependency problems.
Finally, the branch also includes a small unrelated build fix for NOMMU
architectures.
Link: https://lore.kernel.org/all/20210928153508.101208f8@canb.auug.org.au/
Link: https://lore.kernel.org/all/20210928075216.4193128-1-arnd@kernel.org/
Link: https://lore.kernel.org/all/20211007151010.333516-1-arnd@kernel.org/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-----BEGIN PGP SIGNATURE-----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=187C
-----END PGP SIGNATURE-----
Merge tag 'asm-generic-fixes-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic fixes from Arnd Bergmann:
"There is one build fix for Arm platforms that ended up impacting most
architectures because of the way the drivers/firmware Kconfig file is
wired up:
The CONFIG_QCOM_SCM dependency have caused a number of randconfig
regressions over time, and some still remain in v5.15-rc4. The fix we
agreed on in the end is to make this symbol selected by any driver
using it, and then building it even for non-Arm platforms with
CONFIG_COMPILE_TEST.
To make this work on all architectures, the drivers/firmware/Kconfig
file needs to be included for all architectures to make the symbol
itself visible.
In a separate discussion, we found that a sound driver patch that is
pending for v5.16 needs the same change to include this Kconfig file,
so the easiest solution seems to have my Kconfig rework included in
v5.15.
Finally, the branch also includes a small unrelated build fix for
NOMMU architectures"
Link: https://lore.kernel.org/all/20210928153508.101208f8@canb.auug.org.au/
Link: https://lore.kernel.org/all/20210928075216.4193128-1-arnd@kernel.org/
Link: https://lore.kernel.org/all/20211007151010.333516-1-arnd@kernel.org/
* tag 'asm-generic-fixes-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic/io.h: give stub iounmap() on !MMU same prototype as elsewhere
qcom_scm: hide Kconfig symbol
firmware: include drivers/firmware/Kconfig unconditionally
Fix a recent ACPI-related regression in the PCI subsystem that
introduced a NULL pointer dereference possible to trigger from
user space via sysfs on some systems.
-----BEGIN PGP SIGNATURE-----
iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAmFgfJoSHHJqd0Byand5
c29ja2kubmV0AAoJEILEb/54YlRxJv4QAIdPK7ZRujQYf3EF0n+4nVwLRt0wzrZq
O33t4DS+CUdFKail3LKb++ZmuhQWoMD40f7FkDyuCKH3CVZsI96H7Fs4/6pfjrHj
y78UcDAJQ28KaJHsDSO1mQv8qcrDj5pn1renzCeWOZG9jxO+oPsXfoVb7s+nG1As
2WL3vgsVe3APp/IIQKy2eVNb/RsHFHHW+cYV4tFzTOwGKwzF4QAJAM8VQ+F+bLle
ixOmNdtOY3ttcNFvj0k/wtqbYOlTjXrwQnmGUj9PEgzBmrpp+kqnKCtHxzZnTXRL
lRaDtIeDipGwVBUOzkfGCGKvNiHnLTipdBlXvjG48fOrYLPawRhYjDH3kquMWVKl
c8hjITmfJ8z9u0fJ5UcT1MEWjHRzyF0/+kUymvT076LIom+/W27uKmvLzMojotrL
lWqvWwUwWhyKHPzv7rhMIfyHrfUWEltfhB15EdFSV14dwukMfXgHJFkk3TrA8Mjn
m3ft3/RhmJsbJVhJR4VpHMCkGvidi0XtjgS5IKpBYJS6Hzp9WgSO1vXkLQUd8YwS
dKvMTzoDN+zYx2UDm5sPbUTIGcHr4aCZ2kZqo/gnEPyGkhNYHSOjklKuVnPeaZoY
fEQxIWmtLZs/77jFEkUbMVrJaigsWeAHqPCCjmia4BZQMlOzefxBuwpTJX2zMi3y
pkAlAU55ugtv
=H0kg
-----END PGP SIGNATURE-----
Merge tag 'acpi-5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Fix a recent ACPI-related regression in the PCI subsystem that
introduced a NULL pointer dereference possible to trigger from
user space via sysfs on some systems"
* tag 'acpi-5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PCI: ACPI: Check parent pointer in acpi_pci_find_companion()
Here are some small USB fixes for 5.15-rc5 that resolve a number of
reported issues:
- gadget driver fixes
- xhci build warning fixes
- build configuration fix
- cdc-acm tty handling fixes
- cdc-wdm fix
- typec fixes
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCYWBsEw8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+yn5KwCfYnVRiMWOqOfbOc3pROB9fV6BrocAoIKyzVoR
BkEqytEaB/DW/5vPzns6
=W9cz
-----END PGP SIGNATURE-----
Merge tag 'usb-5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes for 5.15-rc5 that resolve a number of
reported issues:
- gadget driver fixes
- xhci build warning fixes
- build configuration fix
- cdc-acm tty handling fixes
- cdc-wdm fix
- typec fixes
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: cdc-acm: fix break reporting
USB: cdc-acm: fix racy tty buffer accesses
usb: gadget: f_uac2: fixed EP-IN wMaxPacketSize
usb: cdc-wdm: Fix check for WWAN
usb: chipidea: ci_hdrc_imx: Also search for 'phys' phandle
usb: typec: tcpm: handle SRC_STARTUP state if cc changes
usb: typec: tcpci: don't handle vSafe0V event if it's not enabled
usb: typec: tipd: Remove dependency on "connector" child fwnode
Partially revert "usb: Kconfig: using select for USB_COMMON dependency"
usb: dwc3: gadget: Revert "set gadgets parent to the right controller"
usb: xhci: tegra: mark PM functions as __maybe_unused
core:
- Kconfig fix for fb_simple vs simpledrm.
i915:
- Fix RKL HDMI audio
- Fix runtime pm imbalance on i915_gem_shrink() error path
- Fix Type-C port access before hw/sw state sync
- Fix VBT backlight struct version/size check
- Fix VT-d async flip on SKL/BXT with plane stretch workaround
amdgpu:
- DCN 3.1 DP alt mode fixes
- S0ix gfxoff fix
- Fix DRM_AMD_DC_SI dependencies
- PCIe DPC handling fix
- DCN 3.1 scaling fix
- Documentation fix
amdkfd:
- Fix potential memory leak
- IOMMUv2 init fixes
vc4:
- compiler fix
- (there were some hdmi fixes but things got reverted, sort it out later)
nouveau:
- Cursor fix
- Fix ttm buffer moves for ampere gpu's by adding minimal acceleration support.
- memory leak fixes
rockchip:
- crtc/clk fixup
panel:
- ili9341 Fix DT bindings indent
- y030xx067a - yellow tint init seq fix
gbefb:
- Fix gbefb when built with COMPILE_TEST.
-----BEGIN PGP SIGNATURE-----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=Wbzr
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-2021-10-08' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"I've returned from my tropical island retreat, even managed to bring
one of my kids on a dive with some turtles. Thanks to Daniel for doing
last week's work.
Otherwise this is the weekly fixes pull, it's a bit bigger because the
vc4 reverts in your tree caused some problems with fixes in the
drm-misc tree so it got left out last week, so this week has the misc
fixes rebased without the vc4 pieces.
Otherwise it's i915, amdgpu with the usual fixes and a scattering over
other drivers.
I expect things should calm down a bit more next week.
core:
- Kconfig fix for fb_simple vs simpledrm.
i915:
- Fix RKL HDMI audio
- Fix runtime pm imbalance on i915_gem_shrink() error path
- Fix Type-C port access before hw/sw state sync
- Fix VBT backlight struct version/size check
- Fix VT-d async flip on SKL/BXT with plane stretch workaround
amdgpu:
- DCN 3.1 DP alt mode fixes
- S0ix gfxoff fix
- Fix DRM_AMD_DC_SI dependencies
- PCIe DPC handling fix
- DCN 3.1 scaling fix
- Documentation fix
amdkfd:
- Fix potential memory leak
- IOMMUv2 init fixes
vc4 (there were some hdmi fixes but things got reverted, sort it out
later):
- compiler fix
nouveau:
- Cursor fix
- Fix ttm buffer moves for ampere gpu's by adding minimal
acceleration support.
- memory leak fixes
rockchip:
- crtc/clk fixup
panel:
- ili9341 Fix DT bindings indent
- y030xx067a - yellow tint init seq fix
gbefb:
- Fix gbefb when built with COMPILE_TEST"
* tag 'drm-fixes-2021-10-08' of git://anongit.freedesktop.org/drm/drm: (33 commits)
drm/amd/display: Fix detection of 4 lane for DPALT
drm/amd/display: Limit display scaling to up to 4k for DCN 3.1
drm/amd/display: Skip override for preferred link settings during link training
drm/nouveau/debugfs: fix file release memory leak
drm/nouveau/kms/nv50-: fix file release memory leak
drm/nouveau: avoid a use-after-free when BO init fails
DRM: delete DRM IRQ legacy midlayer docs
video: fbdev: gbefb: Only instantiate device when built for IP32
fbdev: simplefb: fix Kconfig dependencies
drm/panel: abt-y030xx067a: yellow tint fix
dt-bindings: panel: ili9341: correct indentation
drm/nouveau/fifo/ga102: initialise chid on return from channel creation
drm/rockchip: Update crtc fixup to account for fractional clk change
drm/nouveau/ga102-: support ttm buffer moves via copy engine
drm/nouveau/kms/tu102-: delay enabling cursor until after assign_windows
drm/sun4i: dw-hdmi: Fix HDMI PHY clock setup
drm/vc4: hdmi: Remove unused struct
drm/kmb: Enable alpha blended second plane
drm/amdgpu: handle the case of pci_channel_io_frozen only in amdgpu_pci_resume
drm/amdgpu: init iommu after amdkfd device init
...
Ser Olmy reported a boot failure:
init[1] bad frame in sigreturn frame:(ptrval) ip:b7c9fbe6 sp:bf933310 orax:ffffffff \
in libc-2.33.so[b7bed000+156000]
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
CPU: 0 PID: 1 Comm: init Tainted: G W 5.14.9 #1
Hardware name: Hewlett-Packard HP PC/HP Board, BIOS JD.00.06 12/06/2001
Call Trace:
dump_stack_lvl
dump_stack
panic
do_exit.cold
do_group_exit
get_signal
arch_do_signal_or_restart
? force_sig_info_to_task
? force_sig
exit_to_user_mode_prepare
syscall_exit_to_user_mode
do_int80_syscall_32
entry_INT80_32
on an old 32-bit Intel CPU:
vendor_id : GenuineIntel
cpu family : 6
model : 6
model name : Celeron (Mendocino)
stepping : 5
microcode : 0x3
Ser bisected the problem to the commit in Fixes.
tglx suggested reverting the rejection of invalid MXCSR values which
this commit introduced and replacing it with what the old code did -
simply masking them out to zero.
Further debugging confirmed his suggestion:
fpu->state.fxsave.mxcsr: 0xb7be13b4, mxcsr_feature_mask: 0xffbf
WARNING: CPU: 0 PID: 1 at arch/x86/kernel/fpu/signal.c:384 __fpu_restore_sig+0x51f/0x540
so restore the original behavior only for 32-bit kernels where you have
ancient machines with buggy hardware. For 32-bit programs on 64-bit
kernels, user space which supplies wrong MXCSR values is considered
malicious so fail the sigframe restoration there.
Fixes: 6f9866a166 ("x86/fpu/signal: Let xrstor handle the features to init")
Reported-by: Ser Olmy <ser.olmy@protonmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Ser Olmy <ser.olmy@protonmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/YVtA67jImg3KlBTw@zn.tnic
