Messages in this thread Patch in this message | | | Date | Wed, 12 Nov 2003 16:01:58 -0500 | From | Peng Li <> | Subject | Re: 512MB/1GB RAM |
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This patch works for me. Thanks.
I used to patch the copy_e820_map() by filling some holes in the BIOS memory region as E820_RESERVED, i.e.
add_memory_region(0x3ff7a000ULL,0x3ff80000ULL-0x3ff7a000ULL,E820_RESERVED);
Otherwise some of my PCI devices will be mapped to somewhere between 0x3ff7a000 and 0x3ff80000, which doesn't seem to work. Is it a bug of the BIOS?
Linux version 2.6.0-test9 (root@think) (gcc version 3.2.3 20030422 (Gentoo Linux 1.4 3.2.3-r2, propolice)) #11 Wed Nov 12 15:42:56 EST 2003 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009f000 (usable) BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved) BIOS-e820: 00000000000dc000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000003ff60000 (usable) BIOS-e820: 000000003ff60000 - 000000003ff78000 (ACPI data) BIOS-e820: 000000003ff78000 - 000000003ff7a000 (ACPI NVS) BIOS-e820: 000000003ff80000 - 0000000040000000 (reserved) BIOS-e820: 00000000ff800000 - 0000000100000000 (reserved)
-- Peng
On Mon, Nov 10, 2003 at 09:08:34AM -0800, Linus Torvalds wrote: > Try this patch and tell me if it makes a difference. > > --- 1.102/arch/i386/kernel/setup.c Tue Oct 21 22:10:28 2003 > +++ edited/arch/i386/kernel/setup.c Mon Nov 10 08:23:46 2003 > @@ -87,7 +87,7 @@ > unsigned int mca_pentium_flag; > > /* For PCI or other memory-mapped resources */ > -unsigned long pci_mem_start = 0x10000000; > +unsigned long pci_mem_start = 0x40000000; > > /* user-defined highmem size */ > static unsigned int highmem_pages = -1; > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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