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-rw-r--r--target/i386/cpu.h1
-rw-r--r--target/i386/hvf/x86_emu.c5
2 files changed, 6 insertions, 0 deletions
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 8d599bb5b8..82c1ac00ef 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -368,6 +368,7 @@ typedef enum X86Seg {
#define MSR_IA32_SMBASE 0x9e
#define MSR_SMI_COUNT 0x34
+#define MSR_CORE_THREAD_COUNT 0x35
#define MSR_MTRRcap 0xfe
#define MSR_MTRRcap_VCNT 8
#define MSR_MTRRcap_FIXRANGE_SUPPORT (1 << 8)
diff --git a/target/i386/hvf/x86_emu.c b/target/i386/hvf/x86_emu.c
index da570e352b..e52c39ddb1 100644
--- a/target/i386/hvf/x86_emu.c
+++ b/target/i386/hvf/x86_emu.c
@@ -668,6 +668,7 @@ void simulate_rdmsr(struct CPUState *cpu)
{
X86CPU *x86_cpu = X86_CPU(cpu);
CPUX86State *env = &x86_cpu->env;
+ CPUState *cs = env_cpu(env);
uint32_t msr = ECX(env);
uint64_t val = 0;
@@ -745,6 +746,10 @@ void simulate_rdmsr(struct CPUState *cpu)
case MSR_MTRRdefType:
val = env->mtrr_deftype;
break;
+ case MSR_CORE_THREAD_COUNT:
+ val = cs->nr_threads * cs->nr_cores; /* thread count, bits 15..0 */
+ val |= ((uint32_t)cs->nr_cores << 16); /* core count, bits 31..16 */
+ break;
default:
/* fprintf(stderr, "%s: unknown msr 0x%x\n", __func__, msr); */
val = 0;