diff options
Diffstat (limited to 'target/i386/cpu.c')
| -rw-r--r-- | target/i386/cpu.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/target/i386/cpu.c b/target/i386/cpu.c index d3aa6a815b..d90c01a059 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -5031,6 +5031,13 @@ static void x86_cpu_expand_features(X86CPU *cpu, Error **errp) x86_cpu_adjust_feat_level(cpu, FEAT_C000_0001_EDX); x86_cpu_adjust_feat_level(cpu, FEAT_SVM); x86_cpu_adjust_feat_level(cpu, FEAT_XSAVE); + + /* Intel Processor Trace requires CPUID[0x14] */ + if ((env->features[FEAT_7_0_EBX] & CPUID_7_0_EBX_INTEL_PT) && + kvm_enabled() && cpu->intel_pt_auto_level) { + x86_cpu_adjust_level(cpu, &cpu->env.cpuid_min_level, 0x14); + } + /* SVM requires CPUID[0x8000000A] */ if (env->features[FEAT_8000_0001_ECX] & CPUID_EXT3_SVM) { x86_cpu_adjust_level(cpu, &env->cpuid_min_xlevel, 0x8000000A); @@ -5824,6 +5831,8 @@ static Property x86_cpu_properties[] = { DEFINE_PROP_INT32("x-hv-max-vps", X86CPU, hv_max_vps, -1), DEFINE_PROP_BOOL("x-hv-synic-kvm-only", X86CPU, hyperv_synic_kvm_only, false), + DEFINE_PROP_BOOL("x-intel-pt-auto-level", X86CPU, intel_pt_auto_level, + true), DEFINE_PROP_END_OF_LIST() }; |