diff options
Diffstat (limited to 'arch/x86/kvm/mtrr.c')
| -rw-r--r-- | arch/x86/kvm/mtrr.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86/kvm/mtrr.c b/arch/x86/kvm/mtrr.c index 59851dbebfea..dc213b940141 100644 --- a/arch/x86/kvm/mtrr.c +++ b/arch/x86/kvm/mtrr.c @@ -34,7 +34,7 @@ static bool is_mtrr_base_msr(unsigned int msr) static struct kvm_mtrr_range *var_mtrr_msr_to_range(struct kvm_vcpu *vcpu, unsigned int msr) { - int index = (msr - 0x200) / 2; + int index = (msr - MTRRphysBase_MSR(0)) / 2; return &vcpu->arch.mtrr_state.var_ranges[index]; } @@ -42,7 +42,7 @@ static struct kvm_mtrr_range *var_mtrr_msr_to_range(struct kvm_vcpu *vcpu, static bool msr_mtrr_valid(unsigned msr) { switch (msr) { - case 0x200 ... 0x200 + 2 * KVM_NR_VAR_MTRR - 1: + case MTRRphysBase_MSR(0) ... MTRRphysMask_MSR(KVM_NR_VAR_MTRR - 1): case MSR_MTRRfix64K_00000: case MSR_MTRRfix16K_80000: case MSR_MTRRfix16K_A0000: @@ -88,7 +88,8 @@ bool kvm_mtrr_valid(struct kvm_vcpu *vcpu, u32 msr, u64 data) } /* variable MTRRs */ - WARN_ON(!(msr >= 0x200 && msr < 0x200 + 2 * KVM_NR_VAR_MTRR)); + WARN_ON(!(msr >= MTRRphysBase_MSR(0) && + msr <= MTRRphysMask_MSR(KVM_NR_VAR_MTRR - 1))); mask = kvm_vcpu_reserved_gpa_bits_raw(vcpu); if ((msr & 1) == 0) { |