Re: [PATCH v11 00/16] LAM and LASS KVM Enabling

[Binbin Wu]

On 10/21/2023 8:34 AM, Sean Christopherson wrote:
> On Fri, Oct 20, 2023, Sean Christopherson wrote:
> > On Wed, Sep 13, 2023, Binbin Wu wrote:
> > > Binbin Wu (10):
> > >    KVM: x86: Consolidate flags for __linearize()
> > >    KVM: x86: Use a new flag for branch targets
> > >    KVM: x86: Add an emulation flag for implicit system access
> > >    KVM: x86: Add X86EMUL_F_INVLPG and pass it in em_invlpg()
> > >    KVM: x86/mmu: Drop non-PA bits when getting GFN for guest's PGD
> > >    KVM: x86: Add & use kvm_vcpu_is_legal_cr3() to check CR3's legality
> > >    KVM: x86: Remove kvm_vcpu_is_illegal_gpa()
> > >    KVM: x86: Introduce get_untagged_addr() in kvm_x86_ops and call it in
> > >      emulator
> > >    KVM: x86: Untag address for vmexit handlers when LAM applicable
> > >    KVM: x86: Use KVM-governed feature framework to track "LAM enabled"
> > >
> > > Robert Hoo (3):
> > >    KVM: x86: Virtualize LAM for supervisor pointer
> > >    KVM: x86: Virtualize LAM for user pointer
> > >    KVM: x86: Advertise and enable LAM (user and supervisor)
> > >
> > > Zeng Guang (3):
> > >    KVM: emulator: Add emulation of LASS violation checks on linear
> > >      address
> > >    KVM: VMX: Virtualize LASS
> > >    KVM: x86: Advertise LASS CPUID to user space
> > This all looks good!  I have a few minor nits, but nothing I can't tweak when
> > applying.  Assuming nothing explodes in testing, I'll get this applied for 6.8
> > next week.

Thanks very much!

> Gah, by "this" I meant the LAM parts.  LASS is going to have to wait until the
> kernel support lands.