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| author | Ingo Molnar <mingo@elte.hu> | 2011-01-04 09:43:42 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-01-04 09:43:42 +0100 |
| commit | bc030d6cb9532877c1c5a3f5e7123344fa24a285 (patch) | |
| tree | d223d410b868b80d4c0deec192d354a5d06b201a /arch/x86/kernel/setup.c | |
| parent | d3bd058826aa8b79590cca6c8e6d1557bf576ada (diff) | |
| parent | 387c31c7e5c9805b0aef8833d1731a5fe7bdea14 (diff) | |
| download | kernel_samsung_aries-bc030d6cb9532877c1c5a3f5e7123344fa24a285.zip kernel_samsung_aries-bc030d6cb9532877c1c5a3f5e7123344fa24a285.tar.gz kernel_samsung_aries-bc030d6cb9532877c1c5a3f5e7123344fa24a285.tar.bz2 | |
Merge commit 'v2.6.37-rc8' into x86/apic
Conflicts:
arch/x86/include/asm/io_apic.h
Merge reason: move to a fresh -rc, resolve the conflict.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/setup.c')
| -rw-r--r-- | arch/x86/kernel/setup.c | 36 |
1 files changed, 32 insertions, 4 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index b8982e0..a25ce88 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -501,7 +501,18 @@ static inline unsigned long long get_total_mem(void) return total << PAGE_SHIFT; } -#define DEFAULT_BZIMAGE_ADDR_MAX 0x37FFFFFF +/* + * Keep the crash kernel below this limit. On 32 bits earlier kernels + * would limit the kernel to the low 512 MiB due to mapping restrictions. + * On 64 bits, kexec-tools currently limits us to 896 MiB; increase this + * limit once kexec-tools are fixed. + */ +#ifdef CONFIG_X86_32 +# define CRASH_KERNEL_ADDR_MAX (512 << 20) +#else +# define CRASH_KERNEL_ADDR_MAX (896 << 20) +#endif + static void __init reserve_crashkernel(void) { unsigned long long total_mem; @@ -520,10 +531,10 @@ static void __init reserve_crashkernel(void) const unsigned long long alignment = 16<<20; /* 16M */ /* - * kexec want bzImage is below DEFAULT_BZIMAGE_ADDR_MAX + * kexec want bzImage is below CRASH_KERNEL_ADDR_MAX */ crash_base = memblock_find_in_range(alignment, - DEFAULT_BZIMAGE_ADDR_MAX, crash_size, alignment); + CRASH_KERNEL_ADDR_MAX, crash_size, alignment); if (crash_base == MEMBLOCK_ERROR) { pr_info("crashkernel reservation failed - No suitable area found.\n"); @@ -700,6 +711,17 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_X86_32 memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data)); visws_early_detect(); + + /* + * copy kernel address range established so far and switch + * to the proper swapper page table + */ + clone_pgd_range(swapper_pg_dir + KERNEL_PGD_BOUNDARY, + initial_page_table + KERNEL_PGD_BOUNDARY, + KERNEL_PGD_PTRS); + + load_cr3(swapper_pg_dir); + __flush_tlb_all(); #else printk(KERN_INFO "Command line: %s\n", boot_command_line); #endif @@ -758,6 +780,7 @@ void __init setup_arch(char **cmdline_p) x86_init.oem.arch_setup(); + iomem_resource.end = (1ULL << boot_cpu_data.x86_phys_bits) - 1; setup_memory_map(); parse_setup_data(); /* update the e820_saved too */ @@ -985,7 +1008,12 @@ void __init setup_arch(char **cmdline_p) paging_init(); x86_init.paging.pagetable_setup_done(swapper_pg_dir); - setup_trampoline_page_table(); +#ifdef CONFIG_X86_32 + /* sync back kernel address range */ + clone_pgd_range(initial_page_table + KERNEL_PGD_BOUNDARY, + swapper_pg_dir + KERNEL_PGD_BOUNDARY, + KERNEL_PGD_PTRS); +#endif tboot_probe(); |