KVM: SVM: move feature detection to hardware setup code

By moving the SVM feature detection from the each_cpu code to the hardware
setup code it runs only once. As an additional advance the feature check is now
available earlier in the module setup process.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

arch/x86/kvm/svm.c

@@ -302,7 +302,6 @@ static void svm_hardware_enable(void *garbage)
 	svm_data->asid_generation = 1;
 	svm_data->max_asid = cpuid_ebx(SVM_CPUID_FUNC) - 1;
 	svm_data->next_asid = svm_data->max_asid + 1;
-	svm_features = cpuid_edx(SVM_CPUID_FUNC);
 
 	asm volatile ("sgdt %0" : "=m"(gdt_descr));
 	gdt = (struct desc_struct *)gdt_descr.address;
@@ -411,6 +410,9 @@ static __init int svm_hardware_setup(void)
 		if (r)
 			goto err_2;
 	}
+
+	svm_features = cpuid_edx(SVM_CPUID_FUNC);
+
 	return 0;
 
 err_2: