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| author | luoqi <luoqi@FreeBSD.org> | 1999-04-28 01:04:33 +0000 |
|---|---|---|
| committer | luoqi <luoqi@FreeBSD.org> | 1999-04-28 01:04:33 +0000 |
| commit | af7e9be5cce9a2ceb819f00b3f58014d23ab57cd (patch) | |
| tree | 0e70c0e764f072d43041acca8ac52e30616dced3 /sys/i386/linux/linux_locore.s | |
| parent | 0f4a245030e7f1acb03f8de0822a58b188fc0d28 (diff) | |
| download | FreeBSD-src-af7e9be5cce9a2ceb819f00b3f58014d23ab57cd.zip FreeBSD-src-af7e9be5cce9a2ceb819f00b3f58014d23ab57cd.tar.gz | |
Enable vmspace sharing on SMP. Major changes are,
- %fs register is added to trapframe and saved/restored upon kernel entry/exit.
- Per-cpu pages are no longer mapped at the same virtual address.
- Each cpu now has a separate gdt selector table. A new segment selector
is added to point to per-cpu pages, per-cpu global variables are now
accessed through this new selector (%fs). The selectors in gdt table are
rearranged for cache line optimization.
- fask_vfork is now on as default for both UP and SMP.
- Some aio code cleanup.
Reviewed by: Alan Cox <alc@cs.rice.edu>
John Dyson <dyson@iquest.net>
Julian Elischer <julian@whistel.com>
Bruce Evans <bde@zeta.org.au>
David Greenman <dg@root.com>
Diffstat (limited to 'sys/i386/linux/linux_locore.s')
| -rw-r--r-- | sys/i386/linux/linux_locore.s | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/sys/i386/linux/linux_locore.s b/sys/i386/linux/linux_locore.s index 1440218..b458c94 100644 --- a/sys/i386/linux/linux_locore.s +++ b/sys/i386/linux/linux_locore.s @@ -6,9 +6,7 @@ NON_GPROF_ENTRY(linux_sigcode) call LINUX_SIGF_HANDLER(%esp) leal LINUX_SIGF_SC(%esp),%ebx /* linux scp */ - movl LINUX_SC_FS(%ebx),%ecx movl LINUX_SC_GS(%ebx),%edx - movl %cx,%fs movl %dx,%gs push %eax /* fake ret addr */ movl $LINUX_SYS_linux_sigreturn,%eax /* linux_sigreturn() */ |
