From c5d5cd68b54df1c172d3d98d1874e28dbdd452c3 Mon Sep 17 00:00:00 2001 From: Avi Kivity <avi@qumranet.com> Date: Wed, 20 Feb 2008 11:53:16 +0200 Subject: [PATCH] KVM: Add API to retrieve the number of supported vcpus per vm Signed-off-by: Avi Kivity <avi@qumranet.com> --- arch/x86/kvm/x86.c | 3 +++ include/linux/kvm.h | 1 + 2 files changed, 4 insertions(+) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 256c0fc92b67b..955d2eeac964d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -811,6 +811,9 @@ int kvm_dev_ioctl_check_extension(long ext) case KVM_CAP_VAPIC: r = !kvm_x86_ops->cpu_has_accelerated_tpr(); break; + case KVM_CAP_NR_VCPUS: + r = KVM_MAX_VCPUS; + break; default: r = 0; break; diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 94540b3c6872e..deb9c38f98e73 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -234,6 +234,7 @@ struct kvm_vapic_addr { #define KVM_CAP_VAPIC 6 #define KVM_CAP_EXT_CPUID 7 #define KVM_CAP_CLOCKSOURCE 8 +#define KVM_CAP_NR_VCPUS 9 /* returns max vcpus per vm */ /* * ioctls for VM fds -- 2.39.5