[PATCH v6 5/7] KVM: x86: use the fast way to invalidate all pages

[Xiao Guangrong]

Replace kvm_mmu_zap_all by kvm_mmu_invalidate_all_pages

Signed-off-by: Xiao Guangrong <xiaoguangr...@linux.vnet.ibm.com>
---
 arch/x86/kvm/mmu.c |   15 ---------------
 arch/x86/kvm/x86.c |    6 +++---
 2 files changed, 3 insertions(+), 18 deletions(-)

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 7ad0e50..89b51dc 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -4192,21 +4192,6 @@ void kvm_mmu_slot_remove_write_access(struct kvm *kvm, 
int slot)
        spin_unlock(&kvm->mmu_lock);
 }
 
-void kvm_mmu_zap_all(struct kvm *kvm)
-{
-       struct kvm_mmu_page *sp, *node;
-       LIST_HEAD(invalid_list);
-
-       spin_lock(&kvm->mmu_lock);
-restart:
-       list_for_each_entry_safe(sp, node, &kvm->arch.active_mmu_pages, link)
-               if (kvm_mmu_prepare_zap_page(kvm, sp, &invalid_list))
-                       goto restart;
-
-       kvm_mmu_commit_zap_page(kvm, &invalid_list);
-       spin_unlock(&kvm->mmu_lock);
-}
-
 #define BATCH_ZAP_PAGES        10
 static void kvm_zap_obsolete_pages(struct kvm *kvm)
 {
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index d885418..30a990c 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5528,7 +5528,7 @@ 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_invalidate_all_pages(vcpu->kvm, false);
 
        kvm_x86_ops->patch_hypercall(vcpu, instruction);
 
@@ -7073,13 +7073,13 @@ void kvm_arch_commit_memory_region(struct kvm *kvm,
 
 void kvm_arch_flush_shadow_all(struct kvm *kvm)
 {
-       kvm_mmu_zap_all(kvm);
+       kvm_mmu_invalidate_all_pages(kvm, true);
 }
 
 void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
                                   struct kvm_memory_slot *slot)
 {
-       kvm_arch_flush_shadow_all(kvm);
+       kvm_mmu_invalidate_all_pages(kvm, true);
 }
 
 int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
-- 
1.7.7.6

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