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authorJoerg Roedel <joerg.roedel@amd.com>2008-07-14 20:36:36 +0200
committerAvi Kivity <avi@qumranet.com>2008-07-27 11:34:09 +0300
commit5f4cb662a0a2533b45656607471571460310a5ca (patch)
tree19f3f431f75f7103a1b98e1eea56978712399c6b /arch/x86/kvm/mmu.c
parent8be1a6d6c77ab4532e4476fdb8177030ef48b52c (diff)
KVM: SVM: allow enabling/disabling NPT by reloading only the architecture module
If NPT is enabled after loading both KVM modules on AMD and it should be disabled, both KVM modules must be reloaded. If only the architecture module is reloaded the behavior is undefined. With this patch it is possible to disable NPT only by reloading the kvm_amd module. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'arch/x86/kvm/mmu.c')
-rw-r--r--arch/x86/kvm/mmu.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index b0e4ddca6c1..d087d9c4f2d 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1870,6 +1870,12 @@ void kvm_enable_tdp(void)
}
EXPORT_SYMBOL_GPL(kvm_enable_tdp);
+void kvm_disable_tdp(void)
+{
+ tdp_enabled = false;
+}
+EXPORT_SYMBOL_GPL(kvm_disable_tdp);
+
static void free_mmu_pages(struct kvm_vcpu *vcpu)
{
struct kvm_mmu_page *sp;