[VIRT-263 # ARMv8.1-VHE Virtual Host Extensions ]

Posted v5 & v6.

{ [VIRT-262 # ARMv8.1-PAN Privileged Access Never] [VIRT-273 # ARMv8.2-ATS1E1 ] [VIRT-276 # ARMv8.2-UAO ]

Posted v2. }

[VIRT-327 # Richard's upstream QEMU work ]

Addressed a performance regression, of sorts, for ppc32, caused by one of my cputlb reorgs.

r~