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Commit 33bd6a0b authored by Joerg Roedel's avatar Joerg Roedel Committed by Avi Kivity
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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: default avatarJoerg Roedel <joerg.roedel@amd.com>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 9457a712

arch/x86/kvm/svm.c

+3 −1
Original line number Original line Diff line number Diff line
@@ -302,7 +302,6 @@ static void svm_hardware_enable(void *garbage) 
	svm_data->asid_generation = 1;

	svm_data->asid_generation = 1;

	svm_data->max_asid = cpuid_ebx(SVM_CPUID_FUNC) - 1;

	svm_data->max_asid = cpuid_ebx(SVM_CPUID_FUNC) - 1;

	svm_data->next_asid = svm_data->max_asid + 1;

	svm_data->next_asid = svm_data->max_asid + 1;

	svm_features = cpuid_edx(SVM_CPUID_FUNC);





	asm volatile ("sgdt %0" : "=m"(gdt_descr));

	asm volatile ("sgdt %0" : "=m"(gdt_descr));

	gdt = (struct desc_struct *)gdt_descr.address;

	gdt = (struct desc_struct *)gdt_descr.address;
@@ -411,6 +410,9 @@ static __init int svm_hardware_setup(void) 
		if (r)

		if (r)

			goto err_2;

			goto err_2;

	}

	}



	svm_features = cpuid_edx(SVM_CPUID_FUNC);



	return 0;

	return 0;





err_2:

err_2: