linux-kernel - [GIT PULL] KVM fixes for Linux 5.18-rc5 (or -rc6)

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Date:   Sun,  1 May 2022 13:36:07 -0400
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     torvalds@...ux-foundation.org
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: [GIT PULL] KVM fixes for Linux 5.18-rc5 (or -rc6)

Linus,

The following changes since commit e852be8b148e117e25be1c98cf72ee489b05919e:

  kvm: selftests: introduce and use more page size-related constants (2022-04-21 15:41:01 -0400)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/virt/kvm/kvm.git tags/for-linus

for you to fetch changes up to f751d8eac17692905cdd6935f72d523d8adf3b65:

  KVM: x86: work around QEMU issue with synthetic CPUID leaves (2022-04-29 15:24:58 -0400)

----------------------------------------------------------------
ARM:

* Take care of faults occuring between the PARange and
  IPA range by injecting an exception

* Fix S2 faults taken from a host EL0 in protected mode

* Work around Oops caused by a PMU access from a 32bit
  guest when PMU has been created. This is a temporary
  bodge until we fix it for good.

x86:

* Fix potential races when walking host page table

* Fix shadow page table leak when KVM runs nested

* Work around bug in userspace when KVM synthesizes leaf
  0x80000021 on older (pre-EPYC) or Intel processors

Generic (but affects only RISC-V):

* Fix bad user ABI for KVM_EXIT_SYSTEM_EVENT

----------------------------------------------------------------
Alexandru Elisei (1):
      KVM/arm64: Don't emulate a PMU for 32-bit guests if feature not set

Marc Zyngier (1):
      KVM: arm64: Inject exception on out-of-IPA-range translation fault

Mingwei Zhang (1):
      KVM: x86/mmu: fix potential races when walking host page table

Paolo Bonzini (4):
      Merge tag 'kvmarm-fixes-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
      KVM: fix bad user ABI for KVM_EXIT_SYSTEM_EVENT
      Merge branch 'kvm-fixes-for-5.18-rc5' into HEAD
      KVM: x86: work around QEMU issue with synthetic CPUID leaves

Sean Christopherson (2):
      KVM: x86/mmu: Do not create SPTEs for GFNs that exceed host.MAXPHYADDR
      Revert "x86/mm: Introduce lookup_address_in_mm()"

Will Deacon (1):
      KVM: arm64: Handle host stage-2 faults from 32-bit EL0

 Documentation/virt/kvm/api.rst       | 24 ++++++++++-----
 arch/arm64/include/asm/kvm_emulate.h |  1 +
 arch/arm64/kvm/hyp/nvhe/host.S       | 18 ++++++------
 arch/arm64/kvm/inject_fault.c        | 28 ++++++++++++++++++
 arch/arm64/kvm/mmu.c                 | 19 ++++++++++++
 arch/arm64/kvm/pmu-emul.c            | 23 ++++++++++++++-
 arch/arm64/kvm/psci.c                |  3 +-
 arch/riscv/kvm/vcpu_sbi.c            |  5 ++--
 arch/x86/include/asm/pgtable_types.h |  4 ---
 arch/x86/kvm/cpuid.c                 | 19 ++++++++----
 arch/x86/kvm/mmu.h                   | 24 +++++++++++++++
 arch/x86/kvm/mmu/mmu.c               | 57 +++++++++++++++++++++++++++++++-----
 arch/x86/kvm/mmu/spte.h              |  6 ----
 arch/x86/kvm/mmu/tdp_mmu.c           | 15 +++++-----
 arch/x86/kvm/x86.c                   |  8 ++++-
 arch/x86/mm/pat/set_memory.c         | 11 -------
 include/uapi/linux/kvm.h             | 10 ++++++-
 virt/kvm/kvm_main.c                  |  1 +
 18 files changed, 214 insertions(+), 62 deletions(-)