diff options
| author | Yinghai Lu <yinghai@kernel.org> | 2009-05-09 23:47:42 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-11 11:11:12 +0200 |
| commit | 80989ce0643c1034822f3e339ed8d790b649abe1 (patch) | |
| tree | e5881f30fbe9aa557e3caa571dcc57e9ff0fcda4 /arch | |
| parent | 5d423ccd7ba4285f1084e91b26805e1d0ae978ed (diff) | |
x86: clean up and and print out initial max_pfn_mapped
Do this so we can check the range that is mapped before
init_memory_mapping().
To be able to print out meaningful info, we first have to fix
64-bit to have max_pfn_mapped assigned before that call. This
also unifies the code-path a bit.
[ Impact: print more debug info, cleanup ]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <49BF0978.40605@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/setup.c | 4 | ||||
| -rw-r--r-- | arch/x86/mm/init.c | 7 |
2 files changed, 7 insertions, 4 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 0d77e56e821..4031d6cb3ff 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -862,12 +862,16 @@ void __init setup_arch(char **cmdline_p) max_low_pfn = max_pfn; high_memory = (void *)__va(max_pfn * PAGE_SIZE - 1) + 1; + max_pfn_mapped = KERNEL_IMAGE_SIZE >> PAGE_SHIFT; #endif #ifdef CONFIG_X86_CHECK_BIOS_CORRUPTION setup_bios_corruption_check(); #endif + printk(KERN_DEBUG "initial memory mapped : 0 - %08lx\n", + max_pfn_mapped<<PAGE_SHIFT); + reserve_brk(); /* max_pfn_mapped is updated here */ diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 95f5ecf2be5..92d2108a62c 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -132,12 +132,11 @@ static void __init find_early_table_space(unsigned long end, int use_pse, */ #ifdef CONFIG_X86_32 start = 0x7000; - e820_table_start = find_e820_area(start, max_pfn_mapped<<PAGE_SHIFT, - tables, PAGE_SIZE); -#else /* CONFIG_X86_64 */ +#else start = 0x8000; - e820_table_start = find_e820_area(start, end, tables, PAGE_SIZE); #endif + e820_table_start = find_e820_area(start, max_pfn_mapped<<PAGE_SHIFT, + tables, PAGE_SIZE); if (e820_table_start == -1UL) panic("Cannot find space for the kernel page tables"); |