K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2020-10-03T23:17:29.128473Z
K 7
svn:log
V 504
amd64: Store full 64bit of FIP/FDP for 64bit processes when using XSAVE.

If current process is 64bit, use rex-prefixed version of XSAVE
(XSAVE64).  If current process is 32bit and CPU supports saving
segment registers cs/ds in the FPU save area, use non-prefixed variant
of XSAVE.

Reported and tested by:	Michał Górny <mgorny@mgorny@moritz.systems>
PR:	250043
Reviewed by:	emaste, markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D26643

END