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Subject[PATCH 1/8] SVM: move feature detection to hardware setup code
Date
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>
---
arch/x86/kvm/svm.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 7bdbe16..0c58527 100644
--- a/arch/x86/kvm/svm.c
+++ b/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;
@@ -408,6 +407,9 @@ static __init int svm_hardware_setup(void)
if (r)
goto err_2;
}
+
+ svm_features = cpuid_edx(SVM_CPUID_FUNC);
+
return 0;

err_2:
--
1.5.3.7




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