Messages in this thread | | | From | Sean Christopherson <> | Subject | [PATCH v2 00/10] KVM: VMX: Clean up Hyper-V PV TLB flush | Date | Tue, 20 Oct 2020 14:56:03 -0700 |
| |
Clean up KVM's PV TLB flushing when running with EPT on Hyper-V, i.e. as a nested VMM. No real goal in mind other than the sole patch in v1, which is a minor change to avoid a future mixup when TDX also wants to define .remote_flush_tlb. Everything else is opportunistic clean up.
Ran Hyper-V KVM unit tests (if those are even relevant?), but haven't actually tested on top of Hyper-V.
v2: Rewrite everything.
Sean Christopherson (10): KVM: VMX: Track common EPTP for Hyper-V's paravirt TLB flush KVM: VMX: Stash kvm_vmx in a local variable for Hyper-V paravirt TLB flush KVM: VMX: Fold Hyper-V EPTP checking into it's only caller KVM: VMX: Do Hyper-V TLB flush iff vCPU's EPTP hasn't been flushed KVM: VMX: Invalidate hv_tlb_eptp to denote an EPTP mismatch KVM: VMX: Don't invalidate hv_tlb_eptp if the new EPTP matches KVM: VMX: Explicitly check for hv_remote_flush_tlb when loading pgd KVM: VMX: Define Hyper-V paravirt TLB flush fields iff Hyper-V is enabled KVM: VMX: Skip additional Hyper-V TLB EPTP flushes if one fails KVM: VMX: Track PGD instead of EPTP for paravirt Hyper-V TLB flush
arch/x86/kvm/vmx/vmx.c | 102 ++++++++++++++++++++--------------------- arch/x86/kvm/vmx/vmx.h | 16 +++---- 2 files changed, 57 insertions(+), 61 deletions(-)
-- 2.28.0
| |