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Message-ID: <20250626223142.865249-1-seanjc@google.com>
Date: Thu, 26 Jun 2025 15:31:42 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Paolo Bonzini <pbonzini@...hat.com>
Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
Sean Christopherson <seanjc@...gle.com>
Subject: [GIT PULL] KVM: x86: Fixes for 6.16-rcN
Please pull a random smattering of fixes for 6.16. Note, the SEV-ES intra-host
migration commits received your "Queued, thanks", but they never showed up in
kvm.git.
Oh, and there's one more fix that is probably a candidate for 6.16, but I'm
waiting for a response from the submitter, as I think we can go with a more
targeted fix: https://lore.kernel.org/all/aFwLpyDYOsHUtCn-@google.com
The following changes since commit 28224ef02b56fceee2c161fe2a49a0bb197e44f5:
KVM: TDX: Report supported optional TDVMCALLs in TDX capabilities (2025-06-20 14:20:20 -0400)
are available in the Git repository at:
https://github.com/kvm-x86/linux.git tags/kvm-x86-fixes-6.16-rcN
for you to fetch changes up to fa787ac07b3ceb56dd88a62d1866038498e96230:
KVM: x86/hyper-v: Skip non-canonical addresses during PV TLB flush (2025-06-25 09:15:24 -0700)
----------------------------------------------------------------
KVM x86 fixes for 6.16-rcN
- Reject SEV{-ES} intra-host migration if one or more vCPUs are actively
being created so as not to create a non-SEV{-ES} vCPU in an SEV{-ES} VM.
- Use a pre-allocated, per-vCPU buffer for handling de-sparsified vCPU masks
when emulating Hyper-V hypercalls to fix a "stack frame too large" issue.
- Allow out-of-range/invalid Xen event channel ports when configuring IRQ
routing to avoid dictating a specific ioctl() ordering to userspace.
- Conditionally reschedule when setting memory attributes to avoid soft
lockups when userspace converts huge swaths of memory to/from private.
- Add back MWAIT as a required feature for the MONITOR/MWAIT selftest.
- Add a missing field in struct sev_data_snp_launch_start that resulted in
the guest-visible workarounds field being filled at the wrong offset.
- Skip non-canonical address when processing Hyper-V PV TLB flushes to avoid
VM-Fail on INVVPID.
----------------------------------------------------------------
Binbin Wu (1):
Documentation: KVM: Fix unexpected unindent warnings
Chenyi Qiang (1):
KVM: selftests: Add back the missing check of MONITOR/MWAIT availability
David Woodhouse (1):
KVM: x86/xen: Allow 'out of range' event channel ports in IRQ routing table.
Liam Merwick (1):
KVM: Allow CPU to reschedule while setting per-page memory attributes
Manuel Andreas (1):
KVM: x86/hyper-v: Skip non-canonical addresses during PV TLB flush
Nikunj A Dadhania (1):
KVM: SVM: Add missing member in SNP_LAUNCH_START command structure
Sean Christopherson (3):
KVM: SVM: Reject SEV{-ES} intra host migration if vCPU creation is in-flight
KVM: SVM: Initialize vmsa_pa in VMCB to INVALID_PAGE if VMSA page is NULL
KVM: x86/hyper-v: Use preallocated per-vCPU buffer for de-sparsified vCPU masks
Documentation/virt/kvm/api.rst | 28 +++++++++++-----------
arch/x86/include/asm/kvm_host.h | 7 +++++-
arch/x86/kvm/hyperv.c | 5 +++-
arch/x86/kvm/svm/sev.c | 12 ++++++++--
arch/x86/kvm/xen.c | 15 ++++++++++--
include/linux/psp-sev.h | 2 ++
.../testing/selftests/kvm/x86/monitor_mwait_test.c | 1 +
virt/kvm/kvm_main.c | 3 +++
8 files changed, 53 insertions(+), 20 deletions(-)
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