KVM: split kvm_arch_flush_shadow

Introducing kvm_arch_flush_shadow_memslot, to invalidate the
translations of a single memory slot.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 6425906d7cec..a4bf05be5fea 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -408,7 +408,7 @@ static void kvm_mmu_notifier_release(struct mmu_notifier *mn,
         int idx;
 
         idx = srcu_read_lock(&kvm->srcu);
-        kvm_arch_flush_shadow(kvm);
+        kvm_arch_flush_shadow_all(kvm);
         srcu_read_unlock(&kvm->srcu, idx);
 }
 
@@ -582,7 +582,7 @@ static void kvm_destroy_vm(struct kvm *kvm)
 #if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER)
         mmu_notifier_unregister(&kvm->mmu_notifier, kvm->mm);
 #else
-        kvm_arch_flush_shadow(kvm);
+        kvm_arch_flush_shadow_all(kvm);
 #endif
         kvm_arch_destroy_vm(kvm);
         kvm_free_physmem(kvm);
@@ -814,7 +814,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
                  *      - gfn_to_hva (kvm_read_guest, gfn_to_pfn)
                  *      - kvm_is_visible_gfn (mmu_check_roots)
                  */
-                kvm_arch_flush_shadow(kvm);
+                kvm_arch_flush_shadow_memslot(kvm, slot);
                 kfree(old_memslots);
         }
 
@@ -854,7 +854,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
          * mmio sptes.
          */
         if (npages && old.base_gfn != mem->guest_phys_addr >> PAGE_SHIFT)
-                kvm_arch_flush_shadow(kvm);
+                kvm_arch_flush_shadow_all(kvm);
 
         kvm_free_physmem_slot(&old, &new);
         kfree(old_memslots);