diff options
Diffstat (limited to 'arch/x86/kvm/mtrr.c')
| -rw-r--r-- | arch/x86/kvm/mtrr.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/kvm/mtrr.c b/arch/x86/kvm/mtrr.c index fb2f7e10e8bc..a05846a524d9 100644 --- a/arch/x86/kvm/mtrr.c +++ b/arch/x86/kvm/mtrr.c @@ -199,6 +199,18 @@ int kvm_mtrr_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) { u64 *p = (u64 *)&vcpu->arch.mtrr_state.fixed_ranges; + /* MSR_MTRRcap is a readonly MSR. */ + if (msr == MSR_MTRRcap) { + /* + * SMRR = 0 + * WC = 1 + * FIX = 1 + * VCNT = KVM_NR_VAR_MTRR + */ + *pdata = 0x500 | KVM_NR_VAR_MTRR; + return 0; + } + if (!msr_mtrr_valid(msr)) return 1; |