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Diffstat (limited to 'drivers/kvm/mmu.c')
-rw-r--r--drivers/kvm/mmu.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c
index c6f972914f0..22c426cd8cb 100644
--- a/drivers/kvm/mmu.c
+++ b/drivers/kvm/mmu.c
@@ -143,6 +143,7 @@ static int dbg = 1;
#define PFERR_PRESENT_MASK (1U << 0)
#define PFERR_WRITE_MASK (1U << 1)
#define PFERR_USER_MASK (1U << 2)
+#define PFERR_FETCH_MASK (1U << 4)
#define PT64_ROOT_LEVEL 4
#define PT32_ROOT_LEVEL 2
@@ -168,6 +169,11 @@ static int is_cpuid_PSE36(void)
return 1;
}
+static int is_nx(struct kvm_vcpu *vcpu)
+{
+ return vcpu->shadow_efer & EFER_NX;
+}
+
static int is_present_pte(unsigned long pte)
{
return pte & PT_PRESENT_MASK;
@@ -992,16 +998,6 @@ static inline int fix_read_pf(u64 *shadow_ent)
return 0;
}
-static int may_access(u64 pte, int write, int user)
-{
-
- if (user && !(pte & PT_USER_MASK))
- return 0;
- if (write && !(pte & PT_WRITABLE_MASK))
- return 0;
- return 1;
-}
-
static void paging_free(struct kvm_vcpu *vcpu)
{
nonpaging_free(vcpu);