1 files changed, 44 insertions, 0 deletions

diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
new file mode 100644
index 000000000000..1fce19ec7a23
--- /dev/null
+++ b/arch/x86/kvm/mmu.h
@@ -0,0 +1,44 @@
+#ifndef __KVM_X86_MMU_H
+#define __KVM_X86_MMU_H
+
+#include <linux/kvm_host.h>
+
+static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
+{
+        if (unlikely(vcpu->kvm->arch.n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))
+                __kvm_mmu_free_some_pages(vcpu);
+}
+
+static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu)
+{
+        if (likely(vcpu->arch.mmu.root_hpa != INVALID_PAGE))
+                return 0;
+
+        return kvm_mmu_load(vcpu);
+}
+
+static inline int is_long_mode(struct kvm_vcpu *vcpu)
+{
+#ifdef CONFIG_X86_64
+        return vcpu->arch.shadow_efer & EFER_LME;
+#else
+        return 0;
+#endif
+}
+
+static inline int is_pae(struct kvm_vcpu *vcpu)
+{
+        return vcpu->arch.cr4 & X86_CR4_PAE;
+}
+
+static inline int is_pse(struct kvm_vcpu *vcpu)
+{
+        return vcpu->arch.cr4 & X86_CR4_PSE;
+}
+
+static inline int is_paging(struct kvm_vcpu *vcpu)
+{
+        return vcpu->arch.cr0 & X86_CR0_PG;
+}
+
+#endif