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 /arch/i386/power/cpu.c | |
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 'arch/i386/power/cpu.c')
-rw-r--r-- | arch/i386/power/cpu.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/i386/power/cpu.c b/arch/i386/power/cpu.c index 5a1abeff033b..2c15500f8713 100644 --- a/arch/i386/power/cpu.c +++ b/arch/i386/power/cpu.c | |||
@@ -26,8 +26,8 @@ void __save_processor_state(struct saved_context *ctxt) | |||
26 | /* | 26 | /* |
27 | * descriptor tables | 27 | * descriptor tables |
28 | */ | 28 | */ |
29 | store_gdt(&ctxt->gdt_limit); | 29 | store_gdt(&ctxt->gdt); |
30 | store_idt(&ctxt->idt_limit); | 30 | store_idt(&ctxt->idt); |
31 | store_tr(ctxt->tr); | 31 | store_tr(ctxt->tr); |
32 | 32 | ||
33 | /* | 33 | /* |
@@ -99,8 +99,8 @@ void __restore_processor_state(struct saved_context *ctxt) | |||
99 | * now restore the descriptor tables to their proper values | 99 | * now restore the descriptor tables to their proper values |
100 | * ltr is done i fix_processor_context(). | 100 | * ltr is done i fix_processor_context(). |
101 | */ | 101 | */ |
102 | load_gdt(&ctxt->gdt_limit); | 102 | load_gdt(&ctxt->gdt); |
103 | load_idt(&ctxt->idt_limit); | 103 | load_idt(&ctxt->idt); |
104 | 104 | ||
105 | /* | 105 | /* |
106 | * segment registers | 106 | * segment registers |