CVS commit: src/sys/arch/x86/x86

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

Module Name:    src
Committed By:   maxv
Date:           Tue Oct 31 15:16:10 UTC 2017

Modified Files:
        src/sys/arch/x86/x86: fpu.c

Log Message:
Initialize xstate_bv with the structures that were just filled in,
otherwise xrstor does not restore them. This can happen only if userland
calls setcontext without having used the FPU before.

Until rev1.15 xstate_bv was implicitly initialized because the xsave area
was not zeroed out properly.


To generate a diff of this commit:
cvs rdiff -u -r1.17 -r1.18 src/sys/arch/x86/x86/fpu.c

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