diff options
author | Rusty Russell <rusty@rustcorp.com.au> | 2006-12-06 20:14:07 -0500 |
---|---|---|
committer | Andi Kleen <andi@basil.nowhere.org> | 2006-12-06 20:14:07 -0500 |
commit | d3561b7fa0fb0fc583bab0eeda32bec9e4c4056d (patch) | |
tree | 39d835965878622d052ef3b3c7b759d83b6bc327 /include/asm-i386/segment.h | |
parent | db91b882aabd0b3b55a87cbfb344f2798bb740b4 (diff) |
[PATCH] paravirt: header and stubs for paravirtualisation
Create a paravirt.h header for all the critical operations which need to be
replaced with hypervisor calls, and include that instead of defining native
operations, when CONFIG_PARAVIRT.
This patch does the dumbest possible replacement of paravirtualized
instructions: calls through a "paravirt_ops" structure. Currently these are
function implementations of native hardware: hypervisors will override the ops
structure with their own variants.
All the pv-ops functions are declared "fastcall" so that a specific
register-based ABI is used, to make inlining assember easier.
And:
+From: Andy Whitcroft <apw@shadowen.org>
The paravirt ops introduce a 'weak' attribute onto memory_setup().
Code ordering leads to the following warnings on x86:
arch/i386/kernel/setup.c:651: warning: weak declaration of
`memory_setup' after first use results in unspecified behavior
Move memory_setup() to avoid this.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Diffstat (limited to 'include/asm-i386/segment.h')
-rw-r--r-- | include/asm-i386/segment.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-i386/segment.h b/include/asm-i386/segment.h index 5bdda79b6b53..3c796af33776 100644 --- a/include/asm-i386/segment.h +++ b/include/asm-i386/segment.h | |||
@@ -131,5 +131,7 @@ | |||
131 | #define SEGMENT_LDT 0x4 | 131 | #define SEGMENT_LDT 0x4 |
132 | #define SEGMENT_GDT 0x0 | 132 | #define SEGMENT_GDT 0x0 |
133 | 133 | ||
134 | #ifndef CONFIG_PARAVIRT | ||
134 | #define get_kernel_rpl() 0 | 135 | #define get_kernel_rpl() 0 |
135 | #endif | 136 | #endif |
137 | #endif | ||