[PATCH v3 13/15] KVM: x86: use the fast way to invalid all pages

From: Xiao Guangrong
Date: Tue Apr 16 2013 - 02:36:21 EST


Replace kvm_mmu_zap_all by kvm_mmu_invalid_all_pages except on
the path of mmu_notifier->release() which will be replaced in
the later patch

Signed-off-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx>
---
arch/x86/kvm/x86.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 6dbb80c..6e7c85b 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5465,7 +5465,7 @@ static int emulator_fix_hypercall(struct x86_emulate_ctxt *ctxt)
* to ensure that the updated hypercall appears atomically across all
* VCPUs.
*/
- kvm_mmu_zap_all(vcpu->kvm);
+ kvm_mmu_invalid_memslot_pages(vcpu->kvm, NULL);

kvm_x86_ops->patch_hypercall(vcpu, instruction);

@@ -7062,7 +7062,7 @@ void kvm_arch_flush_shadow_all(struct kvm *kvm)
void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
struct kvm_memory_slot *slot)
{
- kvm_arch_flush_shadow_all(kvm);
+ kvm_mmu_invalid_memslot_pages(kvm, slot);
}

int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
--
1.7.7.6

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