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authorYinghai Lu2008-06-30 18:20:54 -0500
committerIngo Molnar2008-07-08 06:16:14 -0500
commit28bb22379513ca3cac9d13766064a219c5fc21a9 (patch)
treee9b870bf99adbbb58e13c454a78366ff83292982 /arch/x86/kernel/head.c
parent102d0a4b56d94e9b7eedfdfb488400271235543f (diff)
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x86: move reserve_setup_data to setup.c
Ying Huang would like setup_data to be reserved, but not included in the no save range. Here we try to modify the e820 table to reserve that range early. also add that in early_res in case bootloader messes up with the ramdisk. other solution would be 1. add early_res_to_highmem... 2. early_res_to_e820... but they could reserve another type memory wrongly, if early_res has some resource reserved early, and not needed later, but it is not removed from early_res in time. Like the RAMDISK (already handled). Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: andi@firstfloor.org Tested-by: Huang, Ying <ying.huang@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/head.c')
-rw-r--r--arch/x86/kernel/head.c18
1 files changed, 0 insertions, 18 deletions
diff --git a/arch/x86/kernel/head.c b/arch/x86/kernel/head.c
index a6816be01cd..3e66bd364a9 100644
--- a/arch/x86/kernel/head.c
+++ b/arch/x86/kernel/head.c
@@ -53,21 +53,3 @@ void __init reserve_ebda_region(void)
53 /* reserve all memory between lowmem and the 1MB mark */ 53 /* reserve all memory between lowmem and the 1MB mark */
54 reserve_early_overlap_ok(lowmem, 0x100000, "BIOS reserved"); 54 reserve_early_overlap_ok(lowmem, 0x100000, "BIOS reserved");
55} 55}
56
57void __init reserve_setup_data(void)
58{
59 struct setup_data *data;
60 u64 pa_data;
61 char buf[32];
62
63 if (boot_params.hdr.version < 0x0209)
64 return;
65 pa_data = boot_params.hdr.setup_data;
66 while (pa_data) {
67 data = early_ioremap(pa_data, sizeof(*data));
68 sprintf(buf, "setup data %x", data->type);
69 reserve_early(pa_data, pa_data+sizeof(*data)+data->len, buf);
70 pa_data = data->next;
71 early_iounmap(data, sizeof(*data));
72 }
73}