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authorXiao Guangrong <xiaoguangrong@cn.fujitsu.com>2010-06-30 04:04:06 -0400
committerMarcelo Tosatti <mtosatti@redhat.com>2010-07-12 13:05:56 -0400
commit91546356d0e550fa23abf7f4b04a903c2855761f (patch)
treece2e9304bac3b125a1e3fca09db7dca2a2de883f /arch/x86
parentda38f43859467a8048365b9e1cce99ccbc62b6e2 (diff)
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>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kvm/mmu.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index a6f695d76928..3699613e8830 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1879,6 +1879,8 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
1879 pgprintk("hfn old %lx new %lx\n", 1879 pgprintk("hfn old %lx new %lx\n",
1880 spte_to_pfn(*sptep), pfn); 1880 spte_to_pfn(*sptep), pfn);
1881 rmap_remove(vcpu->kvm, sptep); 1881 rmap_remove(vcpu->kvm, sptep);
1882 __set_spte(sptep, shadow_trap_nonpresent_pte);
1883 kvm_flush_remote_tlbs(vcpu->kvm);
1882 } else 1884 } else
1883 was_rmapped = 1; 1885 was_rmapped = 1;
1884 } 1886 }