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authorRusty Russell <rusty@rustcorp.com.au>2006-12-07 02:14:07 +0100
committerAndi Kleen <andi@basil.nowhere.org>2006-12-07 02:14:07 +0100
commitd3561b7fa0fb0fc583bab0eeda32bec9e4c4056d (patch)
tree39d835965878622d052ef3b3c7b759d83b6bc327 /arch/i386/power
parentdb91b882aabd0b3b55a87cbfb344f2798bb740b4 (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')
-rw-r--r--arch/i386/power/cpu.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/i386/power/cpu.c b/arch/i386/power/cpu.c
index 5a1abeff033..2c15500f871 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)
/*
* descriptor tables
*/
- store_gdt(&ctxt->gdt_limit);
- store_idt(&ctxt->idt_limit);
+ store_gdt(&ctxt->gdt);
+ store_idt(&ctxt->idt);
store_tr(ctxt->tr);
/*
@@ -99,8 +99,8 @@ void __restore_processor_state(struct saved_context *ctxt)
* now restore the descriptor tables to their proper values
* ltr is done i fix_processor_context().
*/
- load_gdt(&ctxt->gdt_limit);
- load_idt(&ctxt->idt_limit);
+ load_gdt(&ctxt->gdt);
+ load_idt(&ctxt->idt);
/*
* segment registers