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target-i386: kvm: Print warning when clearing mcg_cap bits

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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>
This commit is contained in:
Eduardo Habkost 2015-11-25 18:19:16 +01:00 committed by Paolo Bonzini
parent 2590f15b13
commit 5120901a37
1 changed files with 7 additions and 1 deletions
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8
target-i386/kvm.c
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@ -774,7 +774,7 @@ int kvm_arch_init_vcpu(CPUState *cs)
&& (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;
@ -790,6 +790,12 @@ int kvm_arch_init_vcpu(CPUState *cs)
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) {