From: Marcelo Tosatti <mtosatti@xxxxxxxxxx>
maxcpus, which specifies the maximum number of hotpluggable CPUs,
should not exceed KVM's vcpu limit.
Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>
[Reword message. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
---
kvm-all.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/kvm-all.c b/kvm-all.c
index ef52a0f..a2d4978 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1400,6 +1400,13 @@ int kvm_init(void)
goto err;
}
+ if (max_cpus > max_vcpus) {
+ ret = -EINVAL;
+ fprintf(stderr, "Number of hotpluggable cpus requested (%d) exceeds max cpus "
+ "supported by KVM (%d)\n", max_cpus, max_vcpus);
+ goto err;
+ }
+
s->vmfd = kvm_ioctl(s, KVM_CREATE_VM, 0);
if (s->vmfd < 0) {
#ifdef TARGET_S390X
--
1.7.10.4
--
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