Binbin Wu 4a22801dd1 hv: ept: mask EPT leaf entry bit 52 to bit 63 in gpa2hpa ...

According to SDM, bit N (physical address width) to bit 63 should be masked when calculate
host page frame number.
Currently, hypervisor doesn't set any of these bits, so gpa2hpa can work as expectd.
However, any of these bit set, gpa2hpa return wrong value.

Hypervisor never sets bit N to bit 51 (reserved bits), for simplicity, just mask bit 52 to bit 63.

Tracked-On: #3352
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>

2019-07-03 09:39:41 +08:00

5.5 KiB

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