Re: [kvm-unit-tests GIT PULL] x86: random smattering of changes

[Paolo Bonzini]

On 5/27/26 20:04, Sean Christopherson wrote:
> Please pull a rather random set of changes that have been accumulating over
> the last few months.
>
> Note, the SKINIT nSVM intercept test fails on some Turin CPUs, but allegedly
> only on pre-production hardware?  I assume/hope such hardware isn't commonly
> available, and so didn't bother trying to handle it in upstream KUT.
>
> The following changes since commit 9eb6c57313060d34f7e5b2ac6f90bb5873bbe2ff:
>
>    Merge branch 'mbec' into HEAD (2026-05-12 13:03:25 +0200)
>
> are available in the Git repository at:
>
>    https://github.com/kvm-x86/kvm-unit-tests.git tags/kvm-x86-2026.05.27

Pulled, thanks.

(I haven't pushed my 32-bit tests yet, especially since you preferred to 
leave out the new nSVM test).

Paolo

> for you to fetch changes up to c10d4616e2ad5d95553b2f0c389b4546dfacd76f:
>
>    x86/vmx: Remove the superfluous vmx_cet config entry (2026-05-27 08:59:46 -0700)
>
> ----------------------------------------------------------------
> KVM-Unit-Tests x86 changes:
>
>   - Track SVM's EXIT_CODE as a 64-bit value, to verify KVM does the same.
>
>   - Add nSVM tests for unsupported instruction intercepts.
>
>   - Serialize the (v)CPU after WRMSR(TSCDEADLINE) to prepare for APIC timer
>     virtualization.
>
>   - Disable PKU in the vCPU model when running the nVMX access tests to make
>     the runtime somewhat reasonable.
>
>   - Extended the VMOVDQA test to cover VMOVNTDQA as well.
>
>   - Add test coverage for ENTER + emulated MMIO.
>
>   - Misc fixes, cleanups, and minor coverage enhancements.
>
> ----------------------------------------------------------------
> Isaku Yamahata (2):
>        x86: Replace NOP with CPUID after WRMSR(TSCDEADLINE) to serialize deadline timer
>        x86: tscdeadline_latency: Remove unnecessary nop
>
> Jim Mattson (1):
>        x86: nVMX: Add retry loop to advanced RTM debugging subtest
>
> Kevin Cheng (2):
>        x86/svm: Add missing svm intercepts
>        x86/svm: Add unsupported instruction intercept test
>
> Maxim Levitsky (1):
>        Skip PMU portion of vmware_backdoors test if PMU is not enabled.
>
> Sean Christopherson (9):
>        x86/cstart: Delete "local" version of save_id() to fix x2APIC SMP bug
>        x86/debug: Fix macro definitions for DR7 local/global enable bits
>        x86/svm: Track and handle exit code as an unsigned 64-bit value
>        x86: Disable PKU in vCPU model for vmx_pf_{vpid/no_vpid/invvpid}_test
>        x86/xsave: Extend VMOVDQA testing to also cover VMOVNTDQA
>        x86/debug: Verify DR6 is always empty on an INT1/ICEBP #DB
>        x86/apic: Verify LVT timer register mode reads back what was written
>        x86/emulator: Add testcases for ENTER + emulated MMIO
>        x86/vmx: Remove the superfluous vmx_cet config entry
>
>   lib/x86/asm/debugreg.h    |   5 +-
>   lib/x86/msr.h             |   1 +
>   lib/x86/processor.h       |  11 ++
>   x86/apic.c                |   8 +-
>   x86/cstart.S              |   7 --
>   x86/debug.c               |  34 +++---
>   x86/emulator.c            |  66 ++++++-----
>   x86/emulator64.c          |  64 ++++++++++
>   x86/svm.c                 |  22 +++-
>   x86/svm.h                 |  98 +++++++++++++---
>   x86/svm_npt.c             |   4 +-
>   x86/svm_tests.c           | 290 ++++++++++++++++++++++++++++++----------------
>   x86/tscdeadline_latency.c |   1 -
>   x86/unittests.cfg         |  31 ++---
>   x86/vmexit.c              |   3 +-
>   x86/vmware_backdoors.c    |  18 ++-
>   x86/vmx_tests.c           |  76 +++++++++---
>   x86/xsave.c               |  36 +++++-
>   18 files changed, 559 insertions(+), 216 deletions(-)