[Xen-devel] [PATCH] intel_txt: to add more strict check to detect VMX disabled by BIOS

["Wang, Shane" <shane.wang@xxxxxxxxx>]

This patch is to add more strict check to detect if VMX is disabled by BIOS.

According to the Intel SDM 3B spec,
- Bit 1 enables VMXON in SMX operation. If this bit is clear, execution of
VMXON in SMX operation causes a general-protection exception.
- Bit 2 enables VMXON outside SMX operation. If this bit is clear, execution of
VMXON outside SMX operation causes a general-protection exception.

Signed-off-by: Shane Wang <shane.wang@xxxxxxxxx>

Attachment: txt_fix_xen.patch
Description: txt_fix_xen.patch

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel