tree bfac151f632c85b3f787f7a9748c0a1f7af123ad
parent 97577fd4c31777780a22b77afa4590086ac962c7
author Andrew Jones <drjones@redhat.com> 1377264277 +0200
committer Paolo Bonzini <pbonzini@redhat.com> 1379673472 +0200

kvm: warn if num cpus is greater than num recommended

The comment in kvm_max_vcpus() states that it's using the recommended
procedure from the kernel API documentation to get the max number
of vcpus that kvm supports. It is, but by always returning the
maximum number supported. The maximum number should only be used
for development purposes. qemu should check KVM_CAP_NR_VCPUS for
the recommended number of vcpus. This patch adds a warning if a user
specifies a number of cpus between the recommended and max.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>