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-rw-r--r--arch/arm64/kvm/arm.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 2f03cbfefe67..e4727dc771bf 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -223,7 +223,14 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
r = 1;
break;
case KVM_CAP_NR_VCPUS:
- r = num_online_cpus();
+ /*
+ * ARM64 treats KVM_CAP_NR_CPUS differently from all other
+ * architectures, as it does not always bound it to
+ * KVM_CAP_MAX_VCPUS. It should not matter much because
+ * this is just an advisory value.
+ */
+ r = min_t(unsigned int, num_online_cpus(),
+ kvm_arm_default_max_vcpus());
break;
case KVM_CAP_MAX_VCPUS:
case KVM_CAP_MAX_VCPU_ID: