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Diffstat (limited to 'target/i386/cpu.c')
-rw-r--r--target/i386/cpu.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 739a1cf47a..555ae79d29 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -195,6 +195,8 @@
* bit[02]: Support Single-Range Output scheme;
*/
#define INTEL_PT_MINIMAL_ECX 0x7
+/* generated packets which contain IP payloads have LIP values */
+#define INTEL_PT_IP_LIP (1 << 31)
#define INTEL_PT_ADDR_RANGES_NUM 0x2 /* Number of configurable address ranges */
#define INTEL_PT_ADDR_RANGES_NUM_MASK 0x3
#define INTEL_PT_MTC_BITMAP (0x0249 << 16) /* Support ART(0,3,6,9) */
@@ -781,13 +783,7 @@ static char *x86_cpu_type_name(const char *model_name)
static ObjectClass *x86_cpu_class_by_name(const char *cpu_model)
{
ObjectClass *oc;
- char *typename;
-
- if (cpu_model == NULL) {
- return NULL;
- }
-
- typename = x86_cpu_type_name(cpu_model);
+ char *typename = x86_cpu_type_name(cpu_model);
oc = object_class_by_name(typename);
g_free(typename);
return oc;
@@ -4173,7 +4169,8 @@ static int x86_cpu_filter_features(X86CPU *cpu)
((eax_1 & INTEL_PT_ADDR_RANGES_NUM_MASK) <
INTEL_PT_ADDR_RANGES_NUM) ||
((ebx_1 & (INTEL_PT_PSB_BITMAP | INTEL_PT_CYCLE_BITMAP)) !=
- (INTEL_PT_PSB_BITMAP | INTEL_PT_CYCLE_BITMAP))) {
+ (INTEL_PT_PSB_BITMAP | INTEL_PT_CYCLE_BITMAP)) ||
+ (ecx_0 & INTEL_PT_IP_LIP)) {
/*
* Processor Trace capabilities aren't configurable, so if the
* host can't emulate the capabilities we report on