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authorMarcelo Tosatti <mtosatti@redhat.com>2008-07-23 11:43:42 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2008-08-01 12:43:00 -0700
commitc857ebba6025350232c87d89e459338f139a50ab (patch)
tree70e9ccc8cbf670f51a4f740e5ac912c290d52cb8 /arch
parent205cb93409b6c0d6e66cce8fdf5eef8744d687eb (diff)
KVM: MMU: nuke shadowed pgtable pages and ptes on memslot destruction
Original-Commit-Hash: 3cc312f03e06a8fa39ecb4cc0189efc2bd888899 Flush the shadow mmu before removing regions to avoid stale entries. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/ia64/kvm/kvm-ia64.c3
-rw-r--r--arch/powerpc/kvm/powerpc.c4
-rw-r--r--arch/s390/kvm/kvm-s390.c4
-rw-r--r--arch/x86/kvm/x86.c5
4 files changed, 16 insertions, 0 deletions
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 318b81100623..5152ba043abe 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -1460,6 +1460,9 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
return 0;
}
+void kvm_arch_flush_shadow(struct kvm *kvm)
+{
+}
long kvm_arch_dev_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg)
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 777e0f34e0ea..1eaa3e4fe4a3 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -167,6 +167,10 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
return 0;
}
+void kvm_arch_flush_shadow(struct kvm *kvm)
+{
+}
+
struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
{
struct kvm_vcpu *vcpu;
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 6558b09ff579..b19c1704f4e7 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -672,6 +672,10 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
return 0;
}
+void kvm_arch_flush_shadow(struct kvm *kvm)
+{
+}
+
gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
{
return gfn;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 63a77caa59f1..5a7406ef9ab7 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4016,6 +4016,11 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
return 0;
}
+void kvm_arch_flush_shadow(struct kvm *kvm)
+{
+ kvm_mmu_zap_all(kvm);
+}
+
int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
{
return vcpu->arch.mp_state == KVM_MP_STATE_RUNNABLE