2017-07-13 18:30-0700, Wanpeng Li: > From: Wanpeng Li <[email protected]> > > This patch adds the L1 guest async page fault #PF vmexit handler, such > by L1 similar to ordinary async page fault. > > Cc: Paolo Bonzini <[email protected]> > Cc: Radim Krčmář <[email protected]> > Signed-off-by: Wanpeng Li <[email protected]> > --- > diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c > @@ -3780,6 +3781,37 @@ static bool try_async_pf(struct kvm_vcpu *vcpu, bool > prefault, gfn_t gfn, > return false; > } > > +int kvm_handle_page_fault(struct kvm_vcpu *vcpu, u64 error_code, > + u64 fault_address, char *insn, int insn_len, > + bool need_unprotect) > +{ > + int r = 1; > + > + switch (vcpu->arch.apf.host_apf_reason) { > + default: > + trace_kvm_page_fault(fault_address, error_code); > + > + if (need_unprotect && kvm_event_needs_reinjection(vcpu)) > + kvm_mmu_unprotect_page_virt(vcpu, fault_address); > + r = kvm_mmu_page_fault(vcpu, fault_address, error_code, NULL, > 0);
I changed this when applying (my patch was crappy), the arguments shouldn't be lost: kvm_mmu_page_fault(vcpu, fault_address, error_code, insn, insn_len); It will be in the second merge window pull request if nothing goes bad, thanks.
