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x86: fix CONFIG_X86_RESERVE_LOW_64K=y

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The bad_bios_dmi_table() quirk never triggered because we do DMI setup
too late. Move it a bit earlier.

Also change the CONFIG_X86_RESERVE_LOW_64K quirk to operate on the e820
table directly instead of messing with early reservations - this handles
overlaps (which do occur in this low range of RAM) more gracefully.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu 2008-09-22 02:52:26 -07:00 committed by Ingo Molnar
parent 5871c6b0a5
commit 2216d199b1
1 changed files with 6 additions and 5 deletions
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11
arch/x86/kernel/setup.c
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@ -735,7 +735,8 @@ static int __init dmi_low_memory_corruption(const struct dmi_system_id *d)
"%s detected: BIOS may corrupt low RAM, working it around.\n",
d->ident);
reserve_early_overlap_ok(0x0, 0x10000, "BIOS quirk");
e820_update_range(0, 0x10000, E820_RAM, E820_RESERVED);
sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
return 0;
}
@ -784,8 +785,6 @@ void __init setup_arch(char **cmdline_p)
printk(KERN_INFO "Command line: %s\n", boot_command_line);
#endif
dmi_check_system(bad_bios_dmi_table);
early_cpu_init();
early_ioremap_init();
@ -880,6 +879,10 @@ void __init setup_arch(char **cmdline_p)
finish_e820_parsing();
dmi_scan_machine();
dmi_check_system(bad_bios_dmi_table);
#ifdef CONFIG_X86_32
probe_roms();
#endif
@ -967,8 +970,6 @@ void __init setup_arch(char **cmdline_p)
vsmp_init();
#endif
dmi_scan_machine();
io_delay_init();
/*