On 06/21/2010 12:31 PM, Zhang, Yanmin wrote:
The 5th patch is applied to the latest qemu-kvm tree.--- qemu-kvm_0621/target-i386/kvm.c 2010-06-21 11:00:29.000000000 +0800 +++ qemu-kvm_0621_perf/target-i386/kvm.c 2010-06-21 13:00:14.136999850 +0800 @@ -150,6 +150,9 @@ struct kvm_para_features { #ifdef KVM_CAP_PV_MMU { KVM_CAP_PV_MMU, KVM_FEATURE_MMU_OP }, #endif +#ifdef KVM_CAP_PV_PERF + { KVM_CAP_PV_PERF, KVM_FEATURE_PV_PERF }, +#endif { -1, -1 } };
Not really necessary any more - if you expose the cpuid bit via KVM_GET_SUPPORTED_CPUID2 then 'qemu -cpu host' will automatically enable it.
On the other hand, do update target-i386/cpuid.c:kvm_feature_name so people can enable the feature using qemu -cpu ...,+kvmperf.
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