[V5,9/10] KVM/MMU: Flush tlb directly in the kvm_set_pte_rmapp()

Commit Message

Tianyu Lan Nov. 8, 2018, 9:14 a.m. UTC

From: Lan Tianyu <[e-mail]>

This patch is to flush tlb directly in the kvm_set_pte_rmapp()
and return 0.

Signed-off-by: Lan Tianyu <[e-mail]>
---
 arch/x86/kvm/mmu.c | 5 +++++
 1 file changed, 5 insertions(+)

Patch

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index b13b419166c4..39e0e2572710 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1776,6 +1776,11 @@  static int kvm_set_pte_rmapp(struct kvm *kvm, struct kvm_rmap_head *rmap_head,
 		}
 	}
 
+	if (need_flush && kvm_available_flush_tlb_with_range()) {
+		kvm_flush_remote_tlbs_with_address(kvm, gfn, 1);
+		return 0;
+	}
+
 	return need_flush;
 }