Conghui Chen 2a4c59db74 hv: add check for BASIC VMX INFORMATION ...

Check bit 48 in IA32_VMX_BASIC MSR, if it is 1, return error, as we only
support Intel 64 architecture.

SDM:
Appendix A.1 BASIC VMX INFORMATION

Bit 48 indicates the width of the physical addresses that may be used for the
VMXON region, each VMCS, anddata structures referenced by pointers in a
VMCS (I/O bitmaps, virtual-APIC page, MSR areas for VMX transitions). If
the bit is 0, these addresses are limited to the processor’s
physical-address width.2 If the bit is 1, these addresses are limited to
32 bits. This bit is always 0 for processors that support Intel 64
architecture.

Tracked-On: #4956
Signed-off-by: Conghui Chen <conghui.chen@intel.com>

2020-06-18 14:05:56 +08:00

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