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| author | Rui Paulo <rpaulo@FreeBSD.org> | 2010-07-21 18:47:52 +0000 |
|---|---|---|
| committer | Rui Paulo <rpaulo@FreeBSD.org> | 2010-07-21 18:47:52 +0000 |
| commit | 2b9567285218c4a9c265d32ad869a0ec4eb04ecc (patch) | |
| tree | 515cac3e314abbdd1ea2c53a7b9c180fa22a8b88 /sys/i386 | |
| parent | 85de6c411e94b10e96233272d524ca511b42356e (diff) | |
| download | src-2b9567285218c4a9c265d32ad869a0ec4eb04ecc.tar.gz src-2b9567285218c4a9c265d32ad869a0ec4eb04ecc.zip | |
MFamd64:
Add USD_GETBASE(), USD_SETBASE(), USD_GETLIMIT() and USD_SETLIMIT().
Notes
Notes:
svn path=/head/; revision=210357
Diffstat (limited to 'sys/i386')
| -rw-r--r-- | sys/i386/include/segments.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/i386/include/segments.h b/sys/i386/include/segments.h index 2edcc59073b4..0b12f622c316 100644 --- a/sys/i386/include/segments.h +++ b/sys/i386/include/segments.h @@ -75,6 +75,13 @@ struct segment_descriptor { unsigned sd_hibase:8 ; /* segment base address (msb) */ } ; +#define USD_GETBASE(sd) (((sd)->sd_lobase) | (sd)->sd_hibase << 24) +#define USD_SETBASE(sd, b) (sd)->sd_lobase = (b); \ + (sd)->sd_hibase = ((b) >> 24); +#define USD_GETLIMIT(sd) (((sd)->sd_lolimit) | (sd)->sd_hilimit << 16) +#define USD_SETLIMIT(sd, l) (sd)->sd_lolimit = (l); \ + (sd)->sd_hilimit = ((l) >> 16); + /* * Gate descriptors (e.g. indirect descriptors) */ |