KVM: x86: Second batch of updates for 6.1, i.e. kvm/queue

Pull-request

https://github.com/sean-jc/linux.git tags/kvm-x86-6.1-2

Message

Sean Christopherson Sept. 28, 2022, 11:56 p.m. UTC

Second and likely final batch of x86 updates for 6.1, i.e. for kvm/queue.  All
larger series (NX precision, Hyper-V TLB flush, AVIC fixes, etc...) are
destined for 6.2.

There are a variety of selftest fixes and improvements that I think we should
get into 6.1, but they're not x86 specific, i.e. I need to sync with you to
figure out how to handle those.

Note, Like's PEBS KVM-unit-tests[1] will fail unless the PMU fix that's going
through the tip tree is also applied[2].  That's my fault, I requested Like to
post it separately without thinking through the KUT ramifications.

Thanks!

[1] https://lore.kernel.org/all/[e-mail]
[2] https://lore.kernel.org/all/[e-mail]


The following changes since commit c59fb127583869350256656b7ed848c398bef879:

  KVM: remove KVM_REQ_UNHALT (2022-09-26 12:37:21 -0400)

are available in the Git repository at:

  https://github.com/sean-jc/linux.git tags/kvm-x86-6.1-2

for you to fetch changes up to ea5cbc9ff839091a86558d4e2c082225b13e0055:

  KVM: x86/svm/pmu: Rewrite get_gp_pmc_amd() for more counters scalability (2022-09-28 12:47:23 -0700)

----------------------------------------------------------------
KVM x86 updates for 6.1, batch #2:

 - Misc PMU fixes and cleanups.

 - Fixes for Hyper-V hypercall selftest

----------------------------------------------------------------
Like Xu (6):
      KVM: x86/pmu: Avoid setting BIT_ULL(-1) to pmu->host_cross_mapped_mask
      KVM: x86/pmu: Don't generate PEBS records for emulated instructions
      KVM: x86/pmu: Refactor PERF_GLOBAL_CTRL update helper for reuse by PEBS
      KVM: x86/pmu: Avoid using PEBS perf_events for normal counters
      KVM: x86/svm/pmu: Direct access pmu->gp_counter[] to implement amd_*_to_pmc()
      KVM: x86/svm/pmu: Rewrite get_gp_pmc_amd() for more counters scalability

Vipin Sharma (2):
      KVM: selftests: Check result in hyperv_features for successful hypercalls
      KVM: selftests: Load RAX with -EFAULT before Hyper-V hypercall

Vitaly Kuznetsov (1):
      KVM: selftests: Don't set reserved bits for invalid Hyper-V hypercall number

 arch/x86/kvm/pmu.c                                   |  20 ++++++++++++++-----
 arch/x86/kvm/svm/pmu.c                               | 117 +++++++++++++++++++---------------------------------------------------------------------------------------------
 arch/x86/kvm/vmx/pmu_intel.c                         |  29 +++++++++++++++-------------
 tools/testing/selftests/kvm/x86_64/hyperv_features.c |  13 +++++++------
 4 files changed, 57 insertions(+), 122 deletions(-)