Re: [PATCH 1/2] KVM: x86/mmu: Ensure TLBs are flushed when yielding during GFN range zap

On Fri, Mar 19, 2021 at 4:20 PM Sean Christopherson wrote: > > When flushing a range of GFNs across multiple roots, ensure any pending > flush from a previous root is honored before yielding while walking the > tables of the current root. > > Note, kvm_tdp_mmu_zap_gfn_range() now intentionally ove

[PATCH 1/2] KVM: x86/mmu: Ensure TLBs are flushed when yielding during GFN range zap

When flushing a range of GFNs across multiple roots, ensure any pending flush from a previous root is honored before yielding while walking the tables of the current root. Note, kvm_tdp_mmu_zap_gfn_range() now intentionally overwrites it local "flush" with the result to avoid redundant flushes. z