[v1] KVM: x86: small MMU-adjacent cleanups

[PATCH 0/4] KVM: x86: small MMU-adjacent cleanups

Paolo Bonzini posted 4 patches 1 week, 5 days ago

Diff against v2
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arch/x86/kvm/kvm_cache_regs.h |  8 ++++++++
arch/x86/kvm/svm/nested.c     | 27 ++++++++++++++++++---------
arch/x86/kvm/vmx/nested.c     | 13 -------------
arch/x86/kvm/x86.c            |  3 +++
arch/x86/kvm/x86.h            |  2 +-
5 files changed, 30 insertions(+), 23 deletions(-)

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[PATCH 0/4] KVM: x86: small MMU-adjacent cleanups

Posted by Paolo Bonzini 1 week, 5 days ago

The non-MMU changes/preliminary cleanups from my "separate kvm_mmu"
series; fixed, test, and extracted for inclusion in 7.2.  The rest of
the series can be included later.

The meat here is in patches 2 and 3, which prepare for having a single
copy of the PDPTRs (in vcpu->arch) instead of two (in root_mmu and
nested_mmu).  Please take your time to appreciate nested virtualization
as an endless source of en{joy,ploy}ment.

Thanks,

Paolo

Paolo Bonzini (4):
  KVM: x86: remove nested_mmu from mmu_is_nested()
  KVM: nVMX: remove unnecessary code in prepare_vmcs02
  KVM: nSVM: invalidate cached PDPTRs across nested NPT transitions
  KVM: x86: check that kvm_handle_invpcid is only invoked with shadow
    paging

 arch/x86/kvm/kvm_cache_regs.h |  8 ++++++++
 arch/x86/kvm/svm/nested.c     | 27 ++++++++++++++++++---------
 arch/x86/kvm/vmx/nested.c     | 13 -------------
 arch/x86/kvm/x86.c            |  3 +++
 arch/x86/kvm/x86.h            |  2 +-
 5 files changed, 30 insertions(+), 23 deletions(-)

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2.52.0