KVM: do not de-cache cr4 bits needlessly

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 841d09b123dbca1b6e2fe0efcfdd1ea805636fd1..6e5f069bee30ce54fe1e16b46b21f90af8672fe7 100644 (file)
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -635,7 +635,7 @@ int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
        }
 
        if (is_long_mode(vcpu)) {
-               if (kvm_read_cr4(vcpu) & X86_CR4_PCIDE) {
+               if (kvm_read_cr4_bits(vcpu, X86_CR4_PCIDE)) {
                        if (cr3 & CR3_PCID_ENABLED_RESERVED_BITS)
                                return 1;
                } else