Avi Kivity fe135d2ceb
KVM: MMU: Simplify calculation of pte access ...
The nx bit is awkwardly placed in the 63rd bit position; furthermore it
has a reversed meaning compared to the other bits, which means we can't use
a bitwise and to calculate compounded access masks.
So, we simplify things by creating a new 3-bit exec/write/user access word,
and doing all calculations in that.
Signed-off-by: Avi Kivity <avi@qumranet.com >
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