K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2020-07-19T17:47:55.908022Z
K 7
svn:log
V 245
Simplify non-pti syscall entry on amd64.

Limit manipulations to use %rax as scratch to the pti portion of the
syscall entry code.

Submitted by:	alc
Reviewed by:	markj
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D25722

END