linux-kernel - [GIT PULL] KVM fixes for Linux 6.16-rc2

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Message-ID: <20250613164603.163319-1-pbonzini@redhat.com>
Date: Fri, 13 Jun 2025 12:46:03 -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 6.16-rc2

Linus,

The following changes since commit 19272b37aa4f83ca52bdf9c16d5d81bdd1354494:

  Linux 6.16-rc1 (2025-06-08 13:44:43 -0700)

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 8046d29dde17002523f94d3e6e0ebe486ce52166:

  KVM: x86/mmu: Reject direct bits in gpa passed to KVM_PRE_FAULT_MEMORY (2025-06-12 00:51:42 -0400)

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

- Rework of system register accessors for system registers that are
  directly writen to memory, so that sanitisation of the in-memory
  value happens at the correct time (after the read, or before the
  write). For convenience, RMW-style accessors are also provided.

- Multiple fixes for the so-called "arch-timer-edge-cases' selftest,
  which was always broken.

x86:

- Make KVM_PRE_FAULT_MEMORY stricter for TDX, allowing userspace to pass
  only the "untouched" addresses and flipping the shared/private bit
  in the implementation.

- Disable SEV-SNP support on initialization failure

----------------------------------------------------------------
Ashish Kalra (1):
      KVM: SEV: Disable SEV-SNP support on initialization failure

Marc Zyngier (4):
      KVM: arm64: Add assignment-specific sysreg accessor
      KVM: arm64: Add RMW specific sysreg accessor
      KVM: arm64: Don't use __vcpu_sys_reg() to get the address of a sysreg
      KVM: arm64: Make __vcpu_sys_reg() a pure rvalue operand

Paolo Bonzini (3):
      Merge tag 'kvmarm-fixes-6.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
      KVM: x86/mmu: Embed direct bits into gpa for KVM_PRE_FAULT_MEMORY
      KVM: x86/mmu: Reject direct bits in gpa passed to KVM_PRE_FAULT_MEMORY

Sebastian Ott (4):
      KVM: arm64: selftests: Fix help text for arch_timer_edge_cases
      KVM: arm64: selftests: Fix thread migration in arch_timer_edge_cases
      KVM: arm64: selftests: Fix xVAL init in arch_timer_edge_cases
      KVM: arm64: selftests: Determine effective counter width in arch_timer_edge_cases

 arch/arm64/include/asm/kvm_host.h                  | 34 +++++++++---
 arch/arm64/kvm/arch_timer.c                        | 18 +++----
 arch/arm64/kvm/debug.c                             |  4 +-
 arch/arm64/kvm/fpsimd.c                            |  4 +-
 arch/arm64/kvm/hyp/exception.c                     |  4 +-
 arch/arm64/kvm/hyp/include/hyp/switch.h            |  4 +-
 arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h         |  6 +--
 arch/arm64/kvm/hyp/nvhe/hyp-main.c                 |  4 +-
 arch/arm64/kvm/hyp/vhe/switch.c                    |  4 +-
 arch/arm64/kvm/hyp/vhe/sysreg-sr.c                 | 46 ++++++++---------
 arch/arm64/kvm/nested.c                            |  2 +-
 arch/arm64/kvm/pmu-emul.c                          | 24 ++++-----
 arch/arm64/kvm/sys_regs.c                          | 60 +++++++++++-----------
 arch/arm64/kvm/sys_regs.h                          |  4 +-
 arch/arm64/kvm/vgic/vgic-v3-nested.c               | 10 ++--
 arch/x86/kvm/mmu/mmu.c                             |  9 +++-
 arch/x86/kvm/svm/sev.c                             | 44 ++++++++++++----
 .../selftests/kvm/arm64/arch_timer_edge_cases.c    | 39 +++++++++-----
 18 files changed, 194 insertions(+), 126 deletions(-)