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

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Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity
2008-02-20 11:53:16 +02:00
parent 7a95727567
commit f725230af9
2 changed files with 4 additions and 0 deletions
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3
arch/x86/kvm/x86.c
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@@ -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;

1
include/linux/kvm.h
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@@ -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