Instead of silently clearing mcg_cap bits when the host doesn't
support them, print a warning when doing that.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
[Avoid \n at end of error_report. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <
1448471956-66873-10-git-send-email-pbonzini@redhat.com>
&& (env->features[FEAT_1_EDX] & (CPUID_MCE | CPUID_MCA)) ==
(CPUID_MCE | CPUID_MCA)
&& kvm_check_extension(cs->kvm_state, KVM_CAP_MCE) > 0) {
- uint64_t mcg_cap;
+ uint64_t mcg_cap, unsupported_caps;
int banks;
int ret;
return -ENOTSUP;
}
+ unsupported_caps = env->mcg_cap & ~(mcg_cap | MCG_CAP_BANKS_MASK);
+ if (unsupported_caps) {
+ error_report("warning: Unsupported MCG_CAP bits: 0x%" PRIx64,
+ unsupported_caps);
+ }
+
env->mcg_cap &= mcg_cap | MCG_CAP_BANKS_MASK;
ret = kvm_vcpu_ioctl(cs, KVM_X86_SETUP_MCE, &env->mcg_cap);
if (ret < 0) {