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Diffstat (limited to 'arch/x86/kernel/head.c')
-rw-r--r--arch/x86/kernel/head.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/x86/kernel/head.c b/arch/x86/kernel/head.c
index e0d0ce58979..a727c0b9819 100644
--- a/arch/x86/kernel/head.c
+++ b/arch/x86/kernel/head.c
@@ -53,3 +53,21 @@ 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(lowmem, 0x100000, "BIOS reserved"); 54 reserve_early(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}