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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/include/frame.h | |
| 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/include/frame.h')
| -rw-r--r-- | sys/i386/include/frame.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/i386/include/frame.h b/sys/i386/include/frame.h index 05092c2..7d70c14 100644 --- a/sys/i386/include/frame.h +++ b/sys/i386/include/frame.h @@ -34,7 +34,7 @@ * SUCH DAMAGE. * * from: @(#)frame.h 5.2 (Berkeley) 1/18/91 - * $Id: frame.h,v 1.14 1997/02/22 09:34:38 peter Exp $ + * $Id: frame.h,v 1.15 1997/08/09 00:03:12 dyson Exp $ */ #ifndef _MACHINE_FRAME_H_ @@ -51,6 +51,7 @@ */ struct trapframe { + int tf_fs; int tf_es; int tf_ds; int tf_edi; @@ -75,6 +76,7 @@ struct trapframe { /* Superset of trap frame, for traps from virtual-8086 mode */ struct trapframe_vm86 { + int tf_fs; int tf_es; int tf_ds; int tf_edi; @@ -106,6 +108,7 @@ struct trapframe_vm86 { struct intrframe { int if_vec; int if_ppl; + int if_fs; int if_es; int if_ds; int if_edi; @@ -132,6 +135,7 @@ struct intrframe { struct clockframe { int cf_vec; int cf_ppl; + int cf_fs; int cf_es; int cf_ds; int cf_edi; |
