diff options
| author | Alexey Starikovskiy <astarikovskiy@suse.de> | 2008-03-17 22:08:24 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-17 17:41:05 +0200 |
| commit | 85e46035bec6f114ad07ce8a9c70388568b1afd4 (patch) | |
| tree | 0ee972c2f79f4ca3ce7a5a56cba5394d05d934a5 /arch/x86/kernel/mpparse_64.c | |
| parent | ce3fe6b2bfded4f5d931c5f2f9325dc2e3fd3a74 (diff) | |
x86: limit scan to 1k of EBDA.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/mpparse_64.c')
| -rw-r--r-- | arch/x86/kernel/mpparse_64.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kernel/mpparse_64.c b/arch/x86/kernel/mpparse_64.c index fb74135f9d0..19c82648551 100644 --- a/arch/x86/kernel/mpparse_64.c +++ b/arch/x86/kernel/mpparse_64.c @@ -640,11 +640,13 @@ static void __init __find_smp_config(unsigned reserve) * trustworthy, simply because the SMP table may have been * stomped on during early boot. These loaders are buggy and * should be fixed. + * + * MP1.4 SPEC states to only scan first 1K of 4K EBDA. */ address = get_bios_ebda(); if (address) - smp_scan_config(address, 0x1000, reserve); + smp_scan_config(address, 0x400, reserve); } void __init early_find_smp_config(void) |