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Diffstat (limited to 'target/i386/kvm/kvm.c')
-rw-r--r--target/i386/kvm/kvm.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index 0eb7a0340c..5a698bde19 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -105,6 +105,7 @@ static bool has_msr_hv_reenlightenment;
 static bool has_msr_xss;
 static bool has_msr_umwait;
 static bool has_msr_spec_ctrl;
+static bool has_tsc_scale_msr;
 static bool has_msr_tsx_ctrl;
 static bool has_msr_virt_ssbd;
 static bool has_msr_smi_count;
@@ -2216,6 +2217,9 @@ static int kvm_get_supported_msrs(KVMState *s)
             case MSR_IA32_SPEC_CTRL:
                 has_msr_spec_ctrl = true;
                 break;
+            case MSR_AMD64_TSC_RATIO:
+                has_tsc_scale_msr = true;
+                break;
             case MSR_IA32_TSX_CTRL:
                 has_msr_tsx_ctrl = true;
                 break;
@@ -2972,6 +2976,10 @@ static int kvm_put_msrs(X86CPU *cpu, int level)
     if (has_msr_spec_ctrl) {
         kvm_msr_entry_add(cpu, MSR_IA32_SPEC_CTRL, env->spec_ctrl);
     }
+    if (has_tsc_scale_msr) {
+        kvm_msr_entry_add(cpu, MSR_AMD64_TSC_RATIO, env->amd_tsc_scale_msr);
+    }
+
     if (has_msr_tsx_ctrl) {
         kvm_msr_entry_add(cpu, MSR_IA32_TSX_CTRL, env->tsx_ctrl);
     }
@@ -3377,6 +3385,10 @@ static int kvm_get_msrs(X86CPU *cpu)
     if (has_msr_spec_ctrl) {
         kvm_msr_entry_add(cpu, MSR_IA32_SPEC_CTRL, 0);
     }
+    if (has_tsc_scale_msr) {
+        kvm_msr_entry_add(cpu, MSR_AMD64_TSC_RATIO, 0);
+    }
+
     if (has_msr_tsx_ctrl) {
         kvm_msr_entry_add(cpu, MSR_IA32_TSX_CTRL, 0);
     }
@@ -3788,6 +3800,9 @@ static int kvm_get_msrs(X86CPU *cpu)
         case MSR_IA32_SPEC_CTRL:
             env->spec_ctrl = msrs[i].data;
             break;
+        case MSR_AMD64_TSC_RATIO:
+            env->amd_tsc_scale_msr = msrs[i].data;
+            break;
         case MSR_IA32_TSX_CTRL:
             env->tsx_ctrl = msrs[i].data;
             break;