CVS commit: src/sys/arch

["Maxime Villard" <maxv%netbsd.org@localhost>]

Module Name:    src
Committed By:   maxv
Date:           Fri Jun 22 06:22:37 UTC 2018

Modified Files:
        src/sys/arch/x86/include: fpu.h
        src/sys/arch/x86/x86: cpu.c fpu.c
        src/sys/arch/xen/x86: cpu.c

Log Message:
Revert jdolecek's changes related to FXSAVE. They just didn't make any
sense and were trying to hide a real bug, which is, that there is for some
reason a wrong stack alignment that causes FXSAVE to fault in
fpuinit_mxcsr_mask. As seen in current-users@ yesterday, rdi % 16 = 8. And
as seen several months ago, as well.

The rest of the changes in XSAVE are wrong too, but I'll let him fix these
ones.


To generate a diff of this commit:
cvs rdiff -u -r1.11 -r1.12 src/sys/arch/x86/include/fpu.h
cvs rdiff -u -r1.157 -r1.158 src/sys/arch/x86/x86/cpu.c
cvs rdiff -u -r1.41 -r1.42 src/sys/arch/x86/x86/fpu.c
cvs rdiff -u -r1.119 -r1.120 src/sys/arch/xen/x86/cpu.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.