From owner-cvs-src@FreeBSD.ORG  Wed May 14 17:23:41 2003
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From: Peter Wemm <peter@FreeBSD.org>
Date: Wed, 14 May 2003 17:23:40 -0700 (PDT)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org,
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X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/amd64/amd64 cpu_switch.S genassym.c machdep.c
 src/sys/amd64/ia32 ia32_sysvec.c src/sys/amd64/include cpufunc.h
 pcb.h
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peter       2003/05/14 17:23:40 PDT

  FreeBSD src repository

  Modified files:
    sys/amd64/amd64      cpu_switch.S genassym.c machdep.c 
    sys/amd64/ia32       ia32_sysvec.c 
    sys/amd64/include    cpufunc.h pcb.h 
  Log:
  Collect the nastiness for preserving the kernel MSR_GSBASE around the
  load_gs() calls into a single place that is less likely to go wrong.
  
  Eliminate the per-process context switching of MSR_GSBASE, because it
  should be constant for a single cpu.  Instead, save/restore it during
  the loading of the new %gs selector for the new process.
  
  Approved by:    re (amd64/* blanket)
  
  Revision  Changes    Path
  1.141     +3 -10     src/sys/amd64/amd64/cpu_switch.S
  1.146     +0 -1      src/sys/amd64/amd64/genassym.c
  1.578     +1 -8      src/sys/amd64/amd64/machdep.c
  1.4       +1 -8      src/sys/amd64/ia32/ia32_sysvec.c
  1.136     +36 -0     src/sys/amd64/include/cpufunc.h
  1.53      +0 -1      src/sys/amd64/include/pcb.h