Re: [kvm-unit-tests GIT PULL] x86: Fixes, cleanups, and new tests

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On Sat, Jun 15, 2024 at 1:46 AM Sean Christopherson <seanjc@xxxxxxxxxx> wrote:
>
> Please pull a smattering of x86 changes, most of which have been sitting around
> on-list for quite some time.  There are still quite a few KUT x86 series that
> want attention, but they are all quite large and exceeded what little review
> time I have for KUT :-/

Pulled, thanks.

Paolo

> Note, the posted interrupt test fails due to KVM bugs, patches posted:
> https://lore.kernel.org/all/20240607172609.3205077-1-seanjc@xxxxxxxxxx
>
> The following changes since commit a68956b3fb6f5f308822b20ce0ff8e02db1f7375:
>
>   gitlab-ci: Always save artifacts (2024-06-05 12:49:58 +0200)
>
> are available in the Git repository at:
>
>   https://github.com/kvm-x86/kvm-unit-tests.git tags/kvm-x86-2024.06.14
>
> for you to fetch changes up to ee1d79c3f0f871bf78f20930cb1a2441f28ac027:
>
>   nVMX: Verify KVM actually loads the value in HOST_PAT into the PAT MSR (2024-06-11 06:41:23 -0700)
>
> ----------------------------------------------------------------
> x86 fixes, cleanups, and new testcases:
>
>  - Add a testcase to verify that KVM doesn't inject a triple fault (or any
>    other "error") if a nested VM is run with an EP4TA pointing MMIO.
>
>  - Play nice with CR4.CET in test_vmxon_bad_cr()
>
>  - Force emulation when testing MSR_IA32_FLUSH_CMD to workaround an issue where
>    Skylake CPUs don't follow the architecturally defined behavior, and so that
>    the test doesn't break if/when new bits are supported by future CPUs.
>
>  - Rework the async #PF test to support IRQ-based page-ready notifications.
>
>  - Fix a variety of issues related to adaptive PEBS.
>
>  - Add several nested VMX tests for virtual interrupt delivery and posted
>    interrupts.
>
>  - Ensure PAT is loaded with the default value after the nVMX PAT tests
>    (failure to do so was causing tests to fail due to all memory being UC).
>
>  - Misc cleanups.
>
> ----------------------------------------------------------------
> Alejandro Jimenez (1):
>       x86: vmexit: Allow IPI test to be accelerated by SVM AVIC
>
> Dan Wu (1):
>       x86/asyncpf: Update async page fault test for IRQ-based "page ready"
>
> Jack Wang (1):
>       x86/msr: Fix typo in output SMR
>
> Jim Mattson (1):
>       nVMX: Enable x2APIC mode for virtual-interrupt delivery tests
>
> Marc Orr (3):
>       nVMX: test nested "virtual-interrupt delivery"
>       nVMX: test nested EOI virtualization
>       nVMX: add self-IPI tests to vmx_basic_vid_test
>
> Mingwei Zhang (3):
>       x86: Add FEP support on read/write register instructions
>       x86: msr: testing MSR_IA32_FLUSH_CMD reserved bits only in KVM emulation
>       x86/pmu: Clear mask in PMI handler to allow delivering subsequent PMIs
>
> Oliver Upton (1):
>       nVMX: add test for posted interrupts
>
> Sean Christopherson (9):
>       nVMX: Use helpers to check for WB memtype and 4-level EPT support
>       nVMX: Use setup_dummy_ept() to configure EPT for test_ept_eptp() test
>       nVMX: Add a testcase for running L2 with EP4TA that points at MMIO
>       x86/pmu: Enable PEBS on fixed counters iff baseline PEBS is support
>       x86/pmu: Iterate over adaptive PEBS flag combinations
>       x86/pmu: Test adaptive PEBS without any adaptive counters
>       x86/pmu: Add a PEBS test to verify the host LBRs aren't leaked to the guest
>       nVMX: Ensure host's PAT is loaded at the end of all VMX tests
>       nVMX: Verify KVM actually loads the value in HOST_PAT into the PAT MSR
>
> Yang Weijiang (3):
>       nVMX: Exclude CR4.CET from the test_vmxon_bad_cr()
>       nVMX: Rename union vmx_basic and related global variable
>       nVMX: Introduce new vmx_basic MSR feature bit for vmx tests
>
>  lib/x86/apic.h       |   5 +
>  lib/x86/asm/bitops.h |   8 +
>  lib/x86/desc.h       |  30 +++-
>  lib/x86/pmu.h        |   6 +-
>  lib/x86/processor.h  |  24 ++-
>  x86/asyncpf.c        | 154 ++++++++++------
>  x86/msr.c            |  23 ++-
>  x86/pmu.c            |   1 +
>  x86/pmu_pebs.c       | 110 +++++++-----
>  x86/unittests.cfg    |  19 +-
>  x86/vmx.c            |  50 +++---
>  x86/vmx.h            |   7 +-
>  x86/vmx_tests.c      | 497 ++++++++++++++++++++++++++++++++++++++++++++++++---
>  13 files changed, 755 insertions(+), 179 deletions(-)
>






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