K 10
svn:author
V 3
cem
K 8
svn:date
V 27
2020-04-21T21:34:24.245669Z
K 7
svn:log
V 230
vmm(4): Decode and emulate BEXTR

Clang 10 -march=native kernels on znver1 emit BEXTR for APIC reads,
apparently.  Decode and emulate the instruction.

Reviewed by:	grehan
Differential Revision:	https://reviews.freebsd.org/D24463

END