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| author | Venkatesh Pallipadi | 2005-05-01 17:58:51 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2005-05-01 17:58:51 +0200 |
| commit | f9ba70535dc12d9eb57d466a2ecd749e16eca866 (patch) | |
| tree | 7032500f7697e37e8e93869bdcefd4ab5473a136 /include/asm-i386 | |
| parent | [PATCH] x86_64: interrupt handling fix (diff) | |
| download | kernel-qcow2-linux-f9ba70535dc12d9eb57d466a2ecd749e16eca866.tar.gz kernel-qcow2-linux-f9ba70535dc12d9eb57d466a2ecd749e16eca866.tar.xz kernel-qcow2-linux-f9ba70535dc12d9eb57d466a2ecd749e16eca866.zip | |
[PATCH] Increase number of e820 entries hard limit from 32 to 128
The specifications that talk about E820 map doesn't have an upper limit on
the number of e820 entries. But, today's kernel has a hard limit of 32.
With increase in memory size, we are seeing the number of E820 entries
reaching close to 32. Patch below bumps the number upto 128.
The patch changes the location of EDDBUF in zero-page (as it comes after E820).
As, EDDBUF is not used by boot loaders, this patch should not have any effect
on bootloader-setup code interface.
Patch covers both i386 and x86-64.
Tested on:
* grub booting bzImage
* lilo booting bzImage with EDID info enabled
* pxeboot of bzImage
Side-effect:
bss increases by ~ 2K and init.data increases by ~7.5K
on all systems, due to increase in size of static arrays.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-i386')
| -rw-r--r-- | include/asm-i386/e820.h | 2 | ||||
| -rw-r--r-- | include/asm-i386/setup.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/include/asm-i386/e820.h b/include/asm-i386/e820.h index 5c285aee7294..edf65be21a92 100644 --- a/include/asm-i386/e820.h +++ b/include/asm-i386/e820.h @@ -13,7 +13,7 @@ #define __E820_HEADER #define E820MAP 0x2d0 /* our map */ -#define E820MAX 32 /* number of entries in E820MAP */ +#define E820MAX 128 /* number of entries in E820MAP */ #define E820NR 0x1e8 /* # entries in E820MAP */ #define E820_RAM 1 diff --git a/include/asm-i386/setup.h b/include/asm-i386/setup.h index 8814b54c75d4..7a32184d54bf 100644 --- a/include/asm-i386/setup.h +++ b/include/asm-i386/setup.h @@ -16,7 +16,7 @@ #define MAXMEM_PFN PFN_DOWN(MAXMEM) #define MAX_NONPAE_PFN (1 << 20) -#define PARAM_SIZE 2048 +#define PARAM_SIZE 4096 #define COMMAND_LINE_SIZE 256 #define OLD_CL_MAGIC_ADDR 0x90020 |