openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

KVM: MMU: flush remote tlbs when overwriting spte with different pfn 

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

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Xiao Guangrong 2010-06-30 16:04:06 +08:00 committed by Marcelo Tosatti
parent da38f43859
commit 91546356d0
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/kvm/mmu.c
View File

@ -1879,6 +1879,8 @@ 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;
}