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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2012-08-28 22:43:26 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-09-06 15:37:30 +0200 |
| commit | 3b4dc3a031110753b9ba36432dbd21f989fcee56 (patch) | |
| tree | 919feea527d3c3708db62a1e6bf33846adfd787d /arch/x86/kvm | |
| parent | KVM: perform an invalid memslot step for gpa base change (diff) | |
| download | linux-3b4dc3a031110753b9ba36432dbd21f989fcee56.tar.xz linux-3b4dc3a031110753b9ba36432dbd21f989fcee56.zip | |
KVM: move postcommit flush to x86, as mmio sptes are x86 specific
Other arches do not need this.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
v2: fix incorrect deletion of mmio sptes on gpa move (noticed by Takuya)
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/x86.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 37797a090a8f..6f6812ec8419 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6445,6 +6445,14 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, kvm_mmu_change_mmu_pages(kvm, nr_mmu_pages); kvm_mmu_slot_remove_write_access(kvm, mem->slot); spin_unlock(&kvm->mmu_lock); + /* + * If memory slot is created, or moved, we need to clear all + * mmio sptes. + */ + if (npages && old.base_gfn != mem->guest_phys_addr >> PAGE_SHIFT) { + kvm_mmu_zap_all(kvm); + kvm_reload_remote_mmus(kvm); + } } void kvm_arch_flush_shadow_all(struct kvm *kvm) |