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| author | Xiaoguang Chen | 2016-10-09 09:41:44 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2016-11-04 12:13:19 +0100 |
| commit | ae7cd87372a473509aa32ba9ad8bd1401f65d375 (patch) | |
| tree | 1b938cb863571d8a185a18e29a077cc3a3f0f651 /arch/x86/kvm/x86.c | |
| parent | kvm: x86: Check memopp before dereference (CVE-2016-8630) (diff) | |
| download | kernel-qcow2-linux-ae7cd87372a473509aa32ba9ad8bd1401f65d375.tar.gz kernel-qcow2-linux-ae7cd87372a473509aa32ba9ad8bd1401f65d375.tar.xz kernel-qcow2-linux-ae7cd87372a473509aa32ba9ad8bd1401f65d375.zip | |
KVM: x86: add track_flush_slot page track notifier
When a memory slot is being moved or removed users of page track
can be notified. So users can drop write-protection for the pages
in that memory slot.
This notifier type is needed by KVMGT to sync up its shadow page
table when memory slot is being moved or removed.
Register the notifier type track_flush_slot to receive memslot move
and remove event.
Reviewed-by: Xiao Guangrong <guangrong.xiao@intel.com>
Signed-off-by: Chen Xiaoguang <xiaoguang.chen@intel.com>
[Squashed commits to avoid bisection breakage and reworded the subject.]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 3017de0431bd..7e30c720d0c5 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -8155,7 +8155,7 @@ void kvm_arch_flush_shadow_all(struct kvm *kvm) void kvm_arch_flush_shadow_memslot(struct kvm *kvm, struct kvm_memory_slot *slot) { - kvm_mmu_invalidate_zap_all_pages(kvm); + kvm_page_track_flush_slot(kvm, slot); } static inline bool kvm_vcpu_has_events(struct kvm_vcpu *vcpu) |