target-i386: kvm: Report kvm_pv_unhalt as unsupported w/o kernel_irqchip
The kvm_pv_unhalt feature doesn't work if kernel_irqchip is disabled, so we need to report it as unsupported. Tested-by: Peter Xu <peterx@redhat.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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@ -329,6 +329,13 @@ uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function,
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*/
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cpuid_1_edx = kvm_arch_get_supported_cpuid(s, 1, 0, R_EDX);
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ret |= cpuid_1_edx & CPUID_EXT2_AMD_ALIASES;
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} else if (function == KVM_CPUID_FEATURES && reg == R_EAX) {
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/* kvm_pv_unhalt is reported by GET_SUPPORTED_CPUID, but it can't
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* be enabled without the in-kernel irqchip
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*/
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if (!kvm_irqchip_in_kernel()) {
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ret &= ~(1U << KVM_FEATURE_PV_UNHALT);
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}
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}
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/* fallback for older kernels */
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