linux/arch/x86
Linus Torvalds 8363e795eb A first set of urgent fixes to the FPU/XSTATE handling mess^W code.
(There's a lot more in the pipe):
 
 - Prevent corruption of the XSTATE buffer in signal handling by
   validating what is being copied from userspace first.
 
 - Invalidate other task's preserved FPU registers on XRSTOR failure
   (#PF) because latter can still modify some of them.
 
 - Restore the proper PKRU value in case userspace modified it
 
 - Reset FPU state when signal restoring fails
 
 Other:
 
 - Map EFI boot services data memory as encrypted in a SEV guest so that
   the guest can access it and actually boot properly
 
 - Two SGX correctness fixes: proper resources freeing and a NUMA fix
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Merge tag 'x86_urgent_for_v5.13_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:
 "A first set of urgent fixes to the FPU/XSTATE handling mess^W code.
  (There's a lot more in the pipe):

   - Prevent corruption of the XSTATE buffer in signal handling by
     validating what is being copied from userspace first.

   - Invalidate other task's preserved FPU registers on XRSTOR failure
     (#PF) because latter can still modify some of them.

   - Restore the proper PKRU value in case userspace modified it

   - Reset FPU state when signal restoring fails

  Other:

   - Map EFI boot services data memory as encrypted in a SEV guest so
     that the guest can access it and actually boot properly

   - Two SGX correctness fixes: proper resources freeing and a NUMA fix"

* tag 'x86_urgent_for_v5.13_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm: Avoid truncating memblocks for SGX memory
  x86/sgx: Add missing xa_destroy() when virtual EPC is destroyed
  x86/fpu: Reset state for all signal restore failures
  x86/pkru: Write hardware init value to PKRU when xstate is init
  x86/process: Check PF_KTHREAD and not current->mm for kernel threads
  x86/fpu: Invalidate FPU state after a failed XRSTOR from a user buffer
  x86/fpu: Prevent state corruption in __fpu__restore_sig()
  x86/ioremap: Map EFI-reserved memory as encrypted for SEV
2021-06-20 09:09:58 -07:00
..
boot x86/boot/compressed: Enable -Wundef 2021-05-12 21:39:56 +02:00
configs module: remove EXPORT_UNUSED_SYMBOL* 2021-02-08 12:28:07 +01:00
crypto Objtool updates in this cycle were: 2021-04-28 12:53:24 -07:00
entry quota: Disable quotactl_path syscall 2021-05-17 14:39:56 +02:00
events perf/x86/intel/uncore: Fix M2M event umask for Ice Lake server 2021-06-01 16:00:05 +02:00
hyperv The x86 MM changes in this cycle were: 2021-04-29 11:41:43 -07:00
ia32 x86/ia32_signal: Propagate __user annotation properly 2020-12-11 19:44:31 +01:00
include x86/pkru: Write hardware init value to PKRU when xstate is init 2021-06-09 12:12:45 +02:00
kernel A first set of urgent fixes to the FPU/XSTATE handling mess^W code. 2021-06-20 09:09:58 -07:00
kvm Miscellaneous bugfixes. The main interesting one is a NULL pointer dereference 2021-06-17 13:14:53 -07:00
lib - turn the stack canary into a normal __percpu variable on 32-bit which 2021-04-27 17:45:09 -07:00
math-emu x86/fpu/math-emu: Fix function cast warning 2021-03-23 00:08:02 +01:00
mm x86/mm: Avoid truncating memblocks for SGX memory 2021-06-18 19:37:01 +02:00
net Networking changes for 5.13. 2021-04-29 11:57:23 -07:00
pci pci-v5.13-fixes-2 2021-06-18 13:54:11 -07:00
platform x86/setup: Always reserve the first 1M of RAM 2021-06-03 19:57:55 +02:00
power - turn the stack canary into a normal __percpu variable on 32-bit which 2021-04-27 17:45:09 -07:00
purgatory crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
ras
realmode x86/setup: Always reserve the first 1M of RAM 2021-06-03 19:57:55 +02:00
tools x86/tools/insn_sanity: Convert to insn_decode() 2021-03-15 12:21:11 +01:00
um um: elf.h: Fix W=1 warning for empty body in 'do' statement 2021-04-15 23:10:50 +02:00
video
xen x86/Xen: swap NX determination and GDT setup on BSP 2021-05-21 09:53:52 +02:00
.gitignore
Kbuild
Kconfig x86/Kconfig: introduce ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE 2021-05-05 11:27:27 -07:00
Kconfig.assembler
Kconfig.cpu
Kconfig.debug x86, libnvdimm/test: Remove COPY_MC_TEST 2020-10-26 18:08:35 +01:00
Makefile x86, lto: Pass -stack-alignment only on LLD < 13.0.0 2021-06-11 10:33:45 -07:00
Makefile_32.cpu
Makefile.um