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-rw-r--r--target-i386/cpu.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 217500c735..fa811a02d1 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -257,8 +257,8 @@ static const char *svm_feature_name[] = {
};
static const char *cpuid_7_0_ebx_feature_name[] = {
- "fsgsbase", NULL, NULL, "bmi1", "hle", "avx2", NULL, "smep",
- "bmi2", "erms", "invpcid", "rtm", NULL, NULL, NULL, NULL,
+ "fsgsbase", "tsc_adjust", NULL, "bmi1", "hle", "avx2", NULL, "smep",
+ "bmi2", "erms", "invpcid", "rtm", NULL, NULL, "mpx", NULL,
NULL, NULL, "rdseed", "adx", "smap", NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
};
@@ -2588,6 +2588,16 @@ static void x86_cpu_reset(CPUState *s)
env->xcr0 = 1;
+ /*
+ * SDM 11.11.5 requires:
+ * - IA32_MTRR_DEF_TYPE MSR.E = 0
+ * - IA32_MTRR_PHYSMASKn.V = 0
+ * All other bits are undefined. For simplification, zero it all.
+ */
+ env->mtrr_deftype = 0;
+ memset(env->mtrr_var, 0, sizeof(env->mtrr_var));
+ memset(env->mtrr_fixed, 0, sizeof(env->mtrr_fixed));
+
#if !defined(CONFIG_USER_ONLY)
/* We hard-wire the BSP to the first CPU. */
if (s->cpu_index == 0) {