Messages in this thread | | | Subject | Re: [PATCH 1/3] arm: kvm: clamp NR VCPUS to MAX VCPUS | Date | Sat, 14 Sep 2013 13:22:16 +0100 | From | Marc Zyngier <> |
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On 2013-09-14 13:14, Alexander Graf wrote: > Am 14.09.2013 um 07:10 schrieb Andrew Jones <drjones@redhat.com>: > >> Signed-off-by: Andrew Jones <drjones@redhat.com> >> --- >> arch/arm/kvm/arm.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c >> index 741f66a2edbd7..9ebf8ac3a12ff 100644 >> --- a/arch/arm/kvm/arm.c >> +++ b/arch/arm/kvm/arm.c >> @@ -201,7 +201,7 @@ int kvm_dev_ioctl_check_extension(long ext) >> r = 1; >> break; >> case KVM_CAP_NR_VCPUS: >> - r = num_online_cpus(); >> + r = min(num_online_cpus(), KVM_MAX_VCPUS); > > Is there any real reason to prohibit overcommit?
I don't think this affects overcommit. This is the "recommended" limit, and you can still go up to KVM_MAX_CPUS.
M. -- Fast, cheap, reliable. Pick two.
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