On Fri, 2022-02-18 at 19:46 +0100, Paolo Bonzini wrote: > On 2/18/22 19:37, Sean Christopherson wrote: > > Since I keep bringing it up... > > > > From: Sean Christopherson<seanjc@xxxxxxxxxx> > > Date: Fri, 18 Feb 2022 09:43:05 -0800 > > Subject: [PATCH] KVM: x86/mmu: Remove MMU auditing > > > > Remove mmu_audit.c and all its collateral, the auditing code has suffered > > severe bitrot, ironically partly due to shadow paging being more stable > > and thus not benefiting as much from auditing, but mostly due to TDP > > supplanting shadow paging for non-nested guests and shadowing of nested > > TDP not heavily stressing the logic that is being audited. > > > > Signed-off-by: Sean Christopherson<seanjc@xxxxxxxxxx> > > Queued, thanks. O:-) I once kind of played with it. Note that shadow mmu does have bugs - I can easily crash L1/L2 when doing repeated migrations when I disable NPT either in L0 or L1, and when I force the mmu to be always sync (see my strict_mmu patch), the crashes go away. mmu audit maybe could have helped with that. But I won't argue too much about this. Best regards, Maxim Levitsky > > Paolo >
