diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/e820.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 13e32986cb5..e07d4019e26 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -414,8 +414,9 @@ static int __init append_e820_map(struct e820entry *biosmap, int nr_map) return __append_e820_map(biosmap, nr_map); } -u64 __init e820_update_range(u64 start, u64 size, unsigned old_type, - unsigned new_type) +static u64 __init e820_update_range_map(struct e820map *e820x, u64 start, + u64 size, unsigned old_type, + unsigned new_type) { int i; u64 real_updated_size = 0; @@ -426,7 +427,7 @@ u64 __init e820_update_range(u64 start, u64 size, unsigned old_type, size = ULLONG_MAX - start; for (i = 0; i < e820.nr_map; i++) { - struct e820entry *ei = &e820.map[i]; + struct e820entry *ei = &e820x->map[i]; u64 final_start, final_end; if (ei->type != old_type) continue; @@ -454,6 +455,19 @@ u64 __init e820_update_range(u64 start, u64 size, unsigned old_type, return real_updated_size; } +u64 __init e820_update_range(u64 start, u64 size, unsigned old_type, + unsigned new_type) +{ + return e820_update_range_map(&e820, start, size, old_type, new_type); +} + +static u64 __init e820_update_range_saved(u64 start, u64 size, + unsigned old_type, unsigned new_type) +{ + return e820_update_range_map(&e820_saved, start, size, old_type, + new_type); +} + /* make e820 not cover the range */ u64 __init e820_remove_range(u64 start, u64 size, unsigned old_type, int checktype) @@ -503,6 +517,15 @@ void __init update_e820(void) printk(KERN_INFO "modified physical RAM map:\n"); e820_print_map("modified"); } +static void __init update_e820_saved(void) +{ + int nr_map; + + nr_map = e820_saved.nr_map; + if (sanitize_e820_map(e820_saved.map, ARRAY_SIZE(e820_saved.map), &nr_map)) + return; + e820_saved.nr_map = nr_map; +} #define MAX_GAP_END 0x100000000ull /* * Search for a gap in the e820 memory space from start_addr to end_addr. @@ -1007,8 +1030,10 @@ u64 __init early_reserve_e820(u64 startt, u64 sizet, u64 align) addr = round_down(start + size - sizet, align); e820_update_range(addr, sizet, E820_RAM, E820_RESERVED); + e820_update_range_saved(addr, sizet, E820_RAM, E820_RESERVED); printk(KERN_INFO "update e820 for early_reserve_e820\n"); update_e820(); + update_e820_saved(); return addr; } |