Re: [PATCH v2 0/6] KVM: x86/mmu: refine memtype related mmu zap

Yan Zhao
2023-05-24T11:30:47Z

On Tue, May 23, 2023 at 05:15:52PM -0700, Sean Christopherson wrote:
> On Tue, May 09, 2023, Yan Zhao wrote:
> > This series refines mmu zap caused by EPT memory type update.
> > Yan Zhao (6):
> > KVM: x86/mmu: add a new mmu zap helper to indicate memtype changes
> > KVM: x86/mmu: only zap EPT when guest CR0_CD changes
> > KVM: x86/mmu: only zap EPT when guest MTRR changes
> > KVM: x86/mmu: Zap all EPT leaf entries according noncoherent DMA count
> > KVM: x86: Keep a per-VM MTRR state
> > KVM: x86/mmu: use per-VM based MTRR for EPT
> >
> > arch/x86/include/asm/kvm_host.h | 3 +
> > arch/x86/kvm/mmu.h | 1 +
> > arch/x86/kvm/mmu/mmu.c | 18 ++++-
> > arch/x86/kvm/mtrr.c | 112 +++++++++++++++++++++++++-------
> > arch/x86/kvm/vmx/vmx.c | 2 +-
> > arch/x86/kvm/x86.c | 10 ++-
> > arch/x86/kvm/x86.h | 6 +-
> > 7 files changed, 122 insertions(+), 30 deletions(-)
> >
> >
> > base-commit: 5c291b93e5d665380dbecc6944973583f9565ee5
> > --
>
> To save us both a bit of pain, can you base the next version on top of my PAT
> cleanup[*]? I am planning on applying that series "soon". Thanks!
>
> [*] https://lore.kernel.org/all/20230511233351.635053-1-seanjc@google.com
Sure, will do it!