linux-kernel - [PATCH v4 5/6] KVM: x86: use the fast way to invalid all pages

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Message-Id: <1367032402-13729-6-git-send-email-xiaoguangrong@linux.vnet.ibm.com>
Date:	Sat, 27 Apr 2013 11:13:21 +0800
From:	Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
To:	mtosatti@...hat.com
Cc:	gleb@...hat.com, avi.kivity@...il.com,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
Subject: [PATCH v4 5/6] KVM: x86: use the fast way to invalid all pages

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

Signed-off-by: Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
---
 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 8e4494c..809a053 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5483,7 +5483,7 @@ 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);
 
@@ -7093,7 +7093,7 @@ 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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