[GIT PULL] KVM: Selftests changes for 6.13

[Sean Christopherson]

Essentially AVX support, plus a few minor cleanups.

Far more noteworth is what's not in this pull request.  For 6.14, I want
to I want to land series with KVM-selftests-tree-wide impact: one that
changes^fixes the prototype for vcpu_get_reg(), and another that uses the
kernel's canonical $(ARCH) directory scheme instead of KVM selftests'
homebrewed $(ARCH_DIR).  My plan is to refresh both series after all arch
pull requests for 6.13 have landed, and then pester you incessantly to
apply them :-)

  https://lore.kernel.org/all/20241009154953.1073471-1-seanjc@xxxxxxxxxx
  https://lore.kernel.org/all/20240826190116.145945-1-seanjc@xxxxxxxxxx

The following changes since commit 81983758430957d9a5cb3333fe324fd70cf63e7e:

  Linux 6.12-rc5 (2024-10-27 12:52:02 -1000)

are available in the Git repository at:

  https://github.com/kvm-x86/linux.git tags/kvm-x86-selftests-6.13

for you to fetch changes up to 89f8869835e4da836bc60ab20568b7864706f94b:

  KVM: selftests: Ensure KVM supports AVX for SEV-ES VMSA FPU test (2024-11-01 09:26:37 -0700)

----------------------------------------------------------------
KVM selftests changes for 6.13

 - Enable XFAM-based features by default for all selftests VMs, which will
   allow removing the "no AVX" restriction.

----------------------------------------------------------------
Ba Jing (1):
      KVM: selftests: Remove unused macro in the hardware disable test

Jiapeng Chong (1):
      KVM: selftests: Use ARRAY_SIZE for array length

Sean Christopherson (10):
      KVM: selftests: Precisely mask off dynamic fields in CPUID test
      KVM: selftests: Mask off OSPKE and OSXSAVE when comparing CPUID entries
      KVM: selftests: Rework OSXSAVE CR4=>CPUID test to play nice with AVX insns
      KVM: selftests: Configure XCR0 to max supported value by default
      KVM: selftests: Verify XCR0 can be "downgraded" and "upgraded"
      KVM: selftests: Drop manual CR4.OSXSAVE enabling from CR4/CPUID sync test
      KVM: selftests: Drop manual XCR0 configuration from AMX test
      KVM: selftests: Drop manual XCR0 configuration from state test
      KVM: selftests: Drop manual XCR0 configuration from SEV smoke test
      KVM: selftests: Ensure KVM supports AVX for SEV-ES VMSA FPU test

 .../testing/selftests/kvm/hardware_disable_test.c  |  1 -
 .../selftests/kvm/include/x86_64/processor.h       |  5 ++
 tools/testing/selftests/kvm/lib/x86_64/processor.c | 24 ++++++++
 tools/testing/selftests/kvm/x86_64/amx_test.c      | 23 ++------
 tools/testing/selftests/kvm/x86_64/cpuid_test.c    | 67 ++++++++++++++--------
 .../selftests/kvm/x86_64/cr4_cpuid_sync_test.c     | 53 +++++++++++------
 tools/testing/selftests/kvm/x86_64/debug_regs.c    |  2 +-
 .../testing/selftests/kvm/x86_64/sev_smoke_test.c  | 19 ++----
 tools/testing/selftests/kvm/x86_64/state_test.c    |  5 --
 .../testing/selftests/kvm/x86_64/xcr0_cpuid_test.c | 11 +++-
 10 files changed, 123 insertions(+), 87 deletions(-)