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| author | Feng Wu <feng.wu@intel.com> | 2014-04-01 11:56:48 +0200 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2014-04-14 22:50:40 +0200 |
| commit | 66386ade2aa7f5fcf0dda4171df7b4d4c274d2d6 (patch) | |
| tree | f7d159e49a315454fa9b326d59533556140160dd /arch/x86/kvm/mmu.c | |
| parent | KVM: expose SMAP feature to guest (diff) | |
| download | linux-66386ade2aa7f5fcf0dda4171df7b4d4c274d2d6.tar.xz linux-66386ade2aa7f5fcf0dda4171df7b4d4c274d2d6.zip | |
KVM: Rename variable smep to cr4_smep
Rename variable smep to cr4_smep, which can better reflect the
meaning of the variable.
Signed-off-by: Feng Wu <feng.wu@intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 084caf3efaf5..813d31038b93 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -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 |