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Date:   Sun, 10 Jan 2021 11:34:36 +0100
From:   Borislav Petkov <>
To:     Linus Torvalds <>
Cc:     x86-ml <>, lkml <>
Subject: [GIT PULL] x86/urgent for v5.11-rc3

Hi Linus,

as expected, fixes started trickling in after the holidays so please
pull the accumulated pile of x86 urgent fixes for 5.11.



The following changes since commit 5c8fe583cce542aa0b84adc939ce85293de36e5e:

  Linux 5.11-rc1 (2020-12-27 15:30:22 -0800)

are available in the Git repository at:

  git:// tags/x86_urgent_for_v5.11_rc3

for you to fetch changes up to a0195f314a25582b38993bf30db11c300f4f4611:

  x86/resctrl: Don't move a task to the same resource group (2021-01-08 09:08:03 +0100)

- A fix for fanotify_mark() missing the conversion of x86_32 native
syscalls which take 64-bit arguments to the compat handlers due to
former having a general compat handler. (Brian Gerst)

- Add a forgotten pmd page destructor call to pud_free_pmd_page() where
a pmd page is freed. (Dan Williams)

- Make IN/OUT insns with an u8 immediate port operand handling for
SEV-ES guests more precise by using only the single port byte and not
the whole s32 value of the insn decoder. (Peter Gonda)

- Correct a straddling end range check before returning the proper MTRR
type, when the end address is the same as top of memory. (Ying-Tsun

- Change PQR_ASSOC MSR update scheme when moving a task to a resctrl
resource group to avoid significant performance overhead with some
resctrl workloads. (Fenghua Yu)

- Avoid the actual task move overhead when the task is already in the
resource group. (Fenghua Yu)

Brian Gerst (1):
      fanotify: Fix sys_fanotify_mark() on native x86-32

Dan Williams (1):
      x86/mm: Fix leak of pmd ptlock

Fenghua Yu (2):
      x86/resctrl: Use an IPI instead of task_work_add() to update PQR_ASSOC MSR
      x86/resctrl: Don't move a task to the same resource group

Peter Gonda (1):
      x86/sev-es: Fix SEV-ES OUT/IN immediate opcode vc handling

Ying-Tsun Huang (1):
      x86/mtrr: Correct the range check before performing MTRR type lookups

 arch/Kconfig                           |   6 ++
 arch/x86/Kconfig                       |   1 +
 arch/x86/kernel/cpu/mtrr/generic.c     |   6 +-
 arch/x86/kernel/cpu/resctrl/rdtgroup.c | 117 ++++++++++++++-------------------
 arch/x86/kernel/sev-es-shared.c        |   4 +-
 arch/x86/mm/pgtable.c                  |   2 +
 fs/notify/fanotify/fanotify_user.c     |  17 ++---
 include/linux/syscalls.h               |  24 +++++++
 8 files changed, 94 insertions(+), 83 deletions(-)


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