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Date: Mon, 02 Jun 2008 14:26:25 +0800
From: "Huang, Ying" <ying.huang@...el.com>
To: "H. Peter Anvin" <hpa@...or.com>, andi@...stfloor.org,
mingo@...hat.com, tglx@...utronix.de
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH 5/5] x86_64 boot: linked list of setup_data for i386
This patch adds linked list of struct setup_data supported for i386.
Signed-off-by: Huang Ying <ying.huang@...el.com>
---
arch/x86/kernel/head.c | 18 ++++++++++++++++++
arch/x86/kernel/head64.c | 18 ------------------
arch/x86/kernel/setup.c | 22 ++++++++++++++++++++++
arch/x86/kernel/setup_32.c | 3 +++
arch/x86/kernel/setup_64.c | 22 ----------------------
include/asm-x86/bootparam.h | 3 +++
6 files changed, 46 insertions(+), 40 deletions(-)
--- a/arch/x86/kernel/head.c
+++ b/arch/x86/kernel/head.c
@@ -53,3 +53,21 @@ void __init reserve_ebda_region(void)
/* reserve all memory between lowmem and the 1MB mark */
reserve_early(lowmem, 0x100000, "BIOS reserved");
}
+
+void __init reserve_setup_data(void)
+{
+ struct setup_data *data;
+ u64 pa_data;
+ char buf[32];
+
+ if (boot_params.hdr.version < 0x0209)
+ return;
+ pa_data = boot_params.hdr.setup_data;
+ while (pa_data) {
+ data = early_ioremap(pa_data, sizeof(*data));
+ sprintf(buf, "setup data %x", data->type);
+ reserve_early(pa_data, pa_data+sizeof(*data)+data->len, buf);
+ pa_data = data->next;
+ early_iounmap(data, sizeof(*data));
+ }
+}
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -65,24 +65,6 @@ static void __init copy_bootdata(char *r
}
}
-static void __init reserve_setup_data(void)
-{
- struct setup_data *data;
- unsigned long pa_data;
- char buf[32];
-
- if (boot_params.hdr.version < 0x0209)
- return;
- pa_data = boot_params.hdr.setup_data;
- while (pa_data) {
- data = early_ioremap(pa_data, sizeof(*data));
- sprintf(buf, "setup data %x", data->type);
- reserve_early(pa_data, pa_data+sizeof(*data)+data->len, buf);
- pa_data = data->next;
- early_iounmap(data, sizeof(*data));
- }
-}
-
void __init x86_64_start_kernel(char * real_mode_data)
{
int i;
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -376,3 +376,25 @@ EXPORT_SYMBOL(node_to_cpumask);
#endif /* CONFIG_DEBUG_PER_CPU_MAPS */
#endif /* X86_64_NUMA */
+
+void __init parse_setup_data(void)
+{
+ struct setup_data *data;
+ u64 pa_data;
+
+ if (boot_params.hdr.version < 0x0209)
+ return;
+ pa_data = boot_params.hdr.setup_data;
+ while (pa_data) {
+ data = early_ioremap(pa_data, PAGE_SIZE);
+ switch (data->type) {
+ default:
+ break;
+ }
+#ifndef CONFIG_DEBUG_BOOT_PARAMS
+ free_early(pa_data, pa_data+sizeof(*data)+data->len);
+#endif
+ pa_data = data->next;
+ early_iounmap(data, PAGE_SIZE);
+ }
+}
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -270,28 +270,6 @@ void __attribute__((weak)) __init memory
machine_specific_memory_setup();
}
-static void __init parse_setup_data(void)
-{
- struct setup_data *data;
- unsigned long pa_data;
-
- if (boot_params.hdr.version < 0x0209)
- return;
- pa_data = boot_params.hdr.setup_data;
- while (pa_data) {
- data = early_ioremap(pa_data, PAGE_SIZE);
- switch (data->type) {
- default:
- break;
- }
-#ifndef CONFIG_DEBUG_BOOT_PARAMS
- free_early(pa_data, pa_data+sizeof(*data)+data->len);
-#endif
- pa_data = data->next;
- early_iounmap(data, PAGE_SIZE);
- }
-}
-
/*
* setup_arch - architecture-specific boot-time initializations
*
--- a/include/asm-x86/bootparam.h
+++ b/include/asm-x86/bootparam.h
@@ -107,4 +107,7 @@ struct boot_params {
__u8 _pad9[276]; /* 0xeec */
} __attribute__((packed));
+void reserve_setup_data(void);
+void parse_setup_data(void);
+
#endif /* _ASM_BOOTPARAM_H */
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -680,6 +680,7 @@ void __init setup_arch(char **cmdline_p)
pre_setup_arch_hook();
early_cpu_init();
early_ioremap_init();
+ reserve_setup_data();
#ifdef CONFIG_EFI
if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
@@ -728,6 +729,8 @@ void __init setup_arch(char **cmdline_p)
bss_resource.start = virt_to_phys(&__bss_start);
bss_resource.end = virt_to_phys(&__bss_stop)-1;
+ parse_setup_data();
+
parse_early_param();
finish_e820_parsing();
--
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