kvm: x86: Flush only affected TLB entries in kvm_mmu_invlpg*

This needs a minor bug fix. The updated patch is as follows.

Thanks,
Junaid

------------------------------------------------------------------------------

kvm_mmu_invlpg() and kvm_mmu_invpcid_gva() only need to flush the TLB
entries for the specific guest virtual address, instead of flushing all
TLB entries associated with the VM.

Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Junaid Shahid
2018-06-29 13:10:05 -07:00
committed by Paolo Bonzini
parent 956bf3531f
commit faff87588d
4 changed files with 55 additions and 3 deletions

View File

@@ -985,6 +985,14 @@ struct kvm_x86_ops {
void (*tlb_flush)(struct kvm_vcpu *vcpu, bool invalidate_gpa);
/*
* Flush any TLB entries associated with the given GVA.
* Does not need to flush GPA->HPA mappings.
* Can potentially get non-canonical addresses through INVLPGs, which
* the implementation may choose to ignore if appropriate.
*/
void (*tlb_flush_gva)(struct kvm_vcpu *vcpu, gva_t addr);
void (*run)(struct kvm_vcpu *vcpu);
int (*handle_exit)(struct kvm_vcpu *vcpu);
void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);