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x86: Add reserve_ebda_region to x86_init_ops

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reserve_ebda_region needs to be called befor start_kernel. Moorestown
needs to override it. Make it a x86_init_ops function and initialize
it with the default reserve_ebda_region.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2009-08-19 14:36:27 +02:00
parent 8fee697d99
commit 816c25e7d4
4 changed files with 7 additions and 4 deletions
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2
arch/x86/include/asm/x86_init.h
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@ -6,11 +6,13 @@
* @probe_roms: probe BIOS roms
* @reserve_resources: reserve the standard resources for the
* platform
* @reserve_ebda_region: reserve the extended bios data area
*
*/
struct x86_init_resources {
void (*probe_roms)(void);
void (*reserve_resources)(void);
void (*reserve_ebda_region)(void);
};
/**

4
arch/x86/kernel/head32.c
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@ -11,7 +11,7 @@
#include <asm/setup.h>
#include <asm/sections.h>
#include <asm/e820.h>
#include <asm/bios_ebda.h>
#include <asm/page.h>
#include <asm/trampoline.h>
void __init i386_start_kernel(void)
@ -33,7 +33,7 @@ void __init i386_start_kernel(void)
x86_init.resources.probe_roms = probe_roms;
x86_init.resources.reserve_resources = i386_reserve_resources;
reserve_ebda_region();
x86_init.resources.reserve_ebda_region();
/*
* At this point everything still needed from the boot loader

3
arch/x86/kernel/head64.c
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@ -23,7 +23,6 @@
#include <asm/sections.h>
#include <asm/kdebug.h>
#include <asm/e820.h>
#include <asm/bios_ebda.h>
#include <asm/trampoline.h>
static void __init zap_identity_mappings(void)
@ -112,7 +111,7 @@ void __init x86_64_start_reservations(char *real_mode_data)
}
#endif
reserve_ebda_region();
x86_init.resources.reserve_ebda_region();
/*
* At this point everything still needed from the boot loader

2
arch/x86/kernel/x86_init.c
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@ -5,6 +5,7 @@
*/
#include <linux/init.h>
#include <asm/bios_ebda.h>
#include <asm/setup.h>
void __cpuinit x86_init_noop(void) { }
@ -18,5 +19,6 @@ struct __initdata x86_init_ops x86_init = {
.resources = {
.probe_roms = x86_init_noop,
.reserve_resources = reserve_standard_io_resources,
.reserve_ebda_region = reserve_ebda_region,
},
};