From: Xiao Guangrong <[email protected]>

After remove a rmap, we should flush all vcpu's tlb

Signed-off-by: Xiao Guangrong <[email protected]>
Signed-off-by: Marcelo Tosatti <[email protected]>

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 24290f8..a0c5c31 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1941,6 +1941,8 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 
*sptep,
                        pgprintk("hfn old %lx new %lx\n",
                                 spte_to_pfn(*sptep), pfn);
                        rmap_remove(vcpu->kvm, sptep);
+                       __set_spte(sptep, shadow_trap_nonpresent_pte);
+                       kvm_flush_remote_tlbs(vcpu->kvm);
                } else
                        was_rmapped = 1;
        }
--
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