diff options
Diffstat (limited to 'arch/x86/kernel/e820.c')
| -rw-r--r-- | arch/x86/kernel/e820.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index d24c0f2b4a1c..79b9401bbbea 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -910,6 +910,28 @@ static int __init parse_memmap_opt(char *str) } early_param("memmap", parse_memmap_opt); +void __init e820_reserve_setup_data(void) +{ + struct setup_data *data; + u64 pa_data; + + pa_data = boot_params.hdr.setup_data; + if (!pa_data) + return; + + while (pa_data) { + data = early_memremap(pa_data, sizeof(*data)); + e820_update_range(pa_data, sizeof(*data)+data->len, E820_RAM, E820_RESERVED_KERN); + pa_data = data->next; + early_memunmap(data, sizeof(*data)); + } + + sanitize_e820_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries); + memcpy(e820_table_firmware, e820_table, sizeof(struct e820_table)); + printk(KERN_INFO "extended physical RAM map:\n"); + e820_print_map("reserve setup_data"); +} + void __init finish_e820_parsing(void) { if (userdef) { |