@@ -3606,9 +3606,9 @@ void update_permission_bitmask(struct kvm_vcpu *vcpu,
{
unsigned bit, byte, pfec;
u8 map;
- bool fault, x, w, u, wf, uf, ff, smapf, cr4_smap, smep, smap = 0;
+ bool fault, x, w, u, wf, uf, ff, smapf, cr4_smap, cr4_smep, smap = 0;
- smep = kvm_read_cr4_bits(vcpu, X86_CR4_SMEP);
+ cr4_smep = kvm_read_cr4_bits(vcpu, X86_CR4_SMEP);
cr4_smap = kvm_read_cr4_bits(vcpu, X86_CR4_SMAP);
for (byte = 0; byte < ARRAY_SIZE(mmu->permissions); ++byte) {
pfec = byte << 1;
@@ -3633,7 +3633,7 @@ void update_permission_bitmask(struct kvm_vcpu *vcpu,
/* Allow supervisor writes if !cr0.wp */
w |= !is_write_protection(vcpu) && !uf;
/* Disallow supervisor fetches of user code if cr4.smep */
- x &= !(smep && u && !uf);
+ x &= !(cr4_smep && u && !uf);
/*
* SMAP:kernel-mode data accesses from user-mode
Rename variable smep to cr4_smep, which can better reflect the meaning of the variable. Signed-off-by: Feng Wu <feng.wu@intel.com> --- arch/x86/kvm/mmu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)