diff options
Diffstat (limited to 'arch/ia64/kernel')
| -rw-r--r-- | arch/ia64/kernel/efi.c | 4 | ||||
| -rw-r--r-- | arch/ia64/kernel/setup.c | 88 |
2 files changed, 49 insertions, 43 deletions
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c index 73ca86d..8e4894b 100644 --- a/arch/ia64/kernel/efi.c +++ b/arch/ia64/kernel/efi.c @@ -967,7 +967,7 @@ find_memmap_space (void) * to use. We can allocate partial granules only if the unavailable * parts exist, and are WB. */ -void +unsigned long efi_memmap_init(unsigned long *s, unsigned long *e) { struct kern_memdesc *k, *prev = NULL; @@ -1084,6 +1084,8 @@ efi_memmap_init(unsigned long *s, unsigned long *e) /* reserve the memory we are using for kern_memmap */ *s = (u64)kern_memmap; *e = (u64)++k; + + return total_mem; } void diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index c5cfcfa..cbf67f1 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -208,6 +208,48 @@ static int __init register_memory(void) __initcall(register_memory); + +#ifdef CONFIG_KEXEC +static void __init setup_crashkernel(unsigned long total, int *n) +{ + unsigned long long base = 0, size = 0; + int ret; + + ret = parse_crashkernel(boot_command_line, total, + &size, &base); + if (ret == 0 && size > 0) { + if (!base) { + sort_regions(rsvd_region, *n); + base = kdump_find_rsvd_region(size, + rsvd_region, *n); + } + if (base != ~0UL) { + printk(KERN_INFO "Reserving %ldMB of memory at %ldMB " + "for crashkernel (System RAM: %ldMB)\n", + (unsigned long)(size >> 20), + (unsigned long)(base >> 20), + (unsigned long)(total >> 20)); + rsvd_region[*n].start = + (unsigned long)__va(base); + rsvd_region[*n].end = + (unsigned long)__va(base + size); + (*n)++; + crashk_res.start = base; + crashk_res.end = base + size - 1; + } + } + efi_memmap_res.start = ia64_boot_param->efi_memmap; + efi_memmap_res.end = efi_memmap_res.start + + ia64_boot_param->efi_memmap_size; + boot_param_res.start = __pa(ia64_boot_param); + boot_param_res.end = boot_param_res.start + + sizeof(*ia64_boot_param); +} +#else +static inline void __init setup_crashkernel(unsigned long total, int *n) +{} +#endif + /** * reserve_memory - setup reserved memory areas * @@ -219,6 +261,7 @@ void __init reserve_memory (void) { int n = 0; + unsigned long total_memory; /* * none of the entries in this table overlap @@ -254,50 +297,11 @@ reserve_memory (void) n++; #endif - efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end); + total_memory = efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end); n++; -#ifdef CONFIG_KEXEC - /* crashkernel=size@offset specifies the size to reserve for a crash - * kernel. If offset is 0, then it is determined automatically. - * By reserving this memory we guarantee that linux never set's it - * up as a DMA target.Useful for holding code to do something - * appropriate after a kernel panic. - */ - { - char *from = strstr(boot_command_line, "crashkernel="); - unsigned long base, size; - if (from) { - size = memparse(from + 12, &from); - if (*from == '@') - base = memparse(from+1, &from); - else - base = 0; - if (size) { - if (!base) { - sort_regions(rsvd_region, n); - base = kdump_find_rsvd_region(size, - rsvd_region, n); - } - if (base != ~0UL) { - rsvd_region[n].start = - (unsigned long)__va(base); - rsvd_region[n].end = - (unsigned long)__va(base + size); - n++; - crashk_res.start = base; - crashk_res.end = base + size - 1; - } - } - } - efi_memmap_res.start = ia64_boot_param->efi_memmap; - efi_memmap_res.end = efi_memmap_res.start + - ia64_boot_param->efi_memmap_size; - boot_param_res.start = __pa(ia64_boot_param); - boot_param_res.end = boot_param_res.start + - sizeof(*ia64_boot_param); - } -#endif + setup_crashkernel(total_memory, &n); + /* end of memory marker */ rsvd_region[n].start = ~0UL; rsvd_region[n].end = ~0UL; |