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Commit f725230a authored by Avi Kivity's avatar Avi Kivity
Browse files

KVM: Add API to retrieve the number of supported vcpus per vm 



Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 7a957275

arch/x86/kvm/x86.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -811,6 +811,9 @@ int kvm_dev_ioctl_check_extension(long ext) 
	case KVM_CAP_VAPIC:

	case KVM_CAP_VAPIC:

		r = !kvm_x86_ops->cpu_has_accelerated_tpr();

		r = !kvm_x86_ops->cpu_has_accelerated_tpr();

		break;

		break;

	case KVM_CAP_NR_VCPUS:

		r = KVM_MAX_VCPUS;

		break;

	default:

	default:

		r = 0;

		r = 0;

		break;

		break;

include/linux/kvm.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -234,6 +234,7 @@ struct kvm_vapic_addr { 
#define KVM_CAP_VAPIC 6

#define KVM_CAP_VAPIC 6

#define KVM_CAP_EXT_CPUID 7

#define KVM_CAP_EXT_CPUID 7

#define KVM_CAP_CLOCKSOURCE 8

#define KVM_CAP_CLOCKSOURCE 8

#define KVM_CAP_NR_VCPUS 9       /* returns max vcpus per vm */





/*

/*

 * ioctls for VM fds

 * ioctls for VM fds