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KVM: SVM: Do not report xsave in supported cpuid

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To support xsave properly for the guest the SVM module need
software support for it. As long as this is not present do
not report the xsave as supported feature in cpuid.
As a side-effect this patch moves the bit() helper function
into the x86.h file so that it can be used in svm.c too.

KVM-Stable-Tag.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Joerg Roedel
2010-12-07 17:15:05 +01:00
committed by Avi Kivity
parent 3ea3aa8cf6
commit 24d1b15f72
4 changed files with 9 additions and 10 deletions
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5
arch/x86/kvm/x86.c
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@@ -155,11 +155,6 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
u64 __read_mostly host_xcr0;
static inline u32 bit(int bitno)
{
return 1 << (bitno & 31);
}
static void kvm_on_user_return(struct user_return_notifier *urn)
{
unsigned slot;