Commit 85e46035 authored by Alexey Starikovskiy's avatar Alexey Starikovskiy Committed by Ingo Molnar

x86: limit scan to 1k of EBDA.

Signed-off-by: default avatarAlexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent ce3fe6b2
...@@ -640,11 +640,13 @@ static void __init __find_smp_config(unsigned reserve) ...@@ -640,11 +640,13 @@ static void __init __find_smp_config(unsigned reserve)
* trustworthy, simply because the SMP table may have been * trustworthy, simply because the SMP table may have been
* stomped on during early boot. These loaders are buggy and * stomped on during early boot. These loaders are buggy and
* should be fixed. * should be fixed.
*
* MP1.4 SPEC states to only scan first 1K of 4K EBDA.
*/ */
address = get_bios_ebda(); address = get_bios_ebda();
if (address) if (address)
smp_scan_config(address, 0x1000, reserve); smp_scan_config(address, 0x400, reserve);
} }
void __init early_find_smp_config(void) void __init early_find_smp_config(void)
......
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