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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2006-12-07 04:14:02 +0300 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-12-07 04:14:02 +0300 |
| commit | 9ca36101a8d74704d78f10910f89d62de96f9dc8 (patch) | |
| tree | 358086c902c021f9316968062dc1b1165cf5f897 /include/asm-i386/segment.h | |
| parent | eb5b7b9d86f46b45ba1f986302fdf7df84fb8297 (diff) | |
| download | linux-9ca36101a8d74704d78f10910f89d62de96f9dc8.tar.xz | |
[PATCH] i386: Basic definitions for i386-pda
This patch has the basic definitions of struct i386_pda, and the segment
selector in the GDT.
asm-i386/pda.h is more or less a direct copy of asm-x86_64/pda.h. The most
interesting difference is the use of _proxy_pda, which is used to give gcc a
model for the actual memory operations on the real pda structure. No actual
reference is ever made to _proxy_pda, so it is never defined.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Chuck Ebbert <76306.1226@compuserve.com>
Cc: Zachary Amsden <zach@vmware.com>
Cc: Jan Beulich <jbeulich@novell.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Diffstat (limited to 'include/asm-i386/segment.h')
| -rw-r--r-- | include/asm-i386/segment.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/asm-i386/segment.h b/include/asm-i386/segment.h index b7ab59685ba7..5bdda79b6b53 100644 --- a/include/asm-i386/segment.h +++ b/include/asm-i386/segment.h @@ -39,7 +39,7 @@ * 25 - APM BIOS support * * 26 - ESPFIX small SS - * 27 - unused + * 27 - PDA [ per-cpu private data area ] * 28 - unused * 29 - unused * 30 - unused @@ -74,6 +74,9 @@ #define GDT_ENTRY_ESPFIX_SS (GDT_ENTRY_KERNEL_BASE + 14) #define __ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8) +#define GDT_ENTRY_PDA (GDT_ENTRY_KERNEL_BASE + 15) +#define __KERNEL_PDA (GDT_ENTRY_PDA * 8) + #define GDT_ENTRY_DOUBLEFAULT_TSS 31 /* |