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| author | Yinghai Lu <Yinghai.Lu@Sun.COM> | 2008-02-01 17:49:41 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-02-01 17:49:41 +0100 |
| commit | 25eff8d4cd7400372d490c392519c5b0064c03f7 (patch) | |
| tree | 1d07ccfab1f58898dee245d48e7cca3c061b73cc /arch/x86/kernel/e820_64.c | |
| parent | 24e1c13c93cbdd05e4b7ea921c0050b036555adc (diff) | |
| download | blackbird-op-linux-25eff8d4cd7400372d490c392519c5b0064c03f7.tar.gz blackbird-op-linux-25eff8d4cd7400372d490c392519c5b0064c03f7.zip | |
x86_64: add debug name for early_res
helps debugging problems in this rather murky area of code.
Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/e820_64.c')
| -rw-r--r-- | arch/x86/kernel/e820_64.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c index c617174e8963..b74e83b214cc 100644 --- a/arch/x86/kernel/e820_64.c +++ b/arch/x86/kernel/e820_64.c @@ -54,30 +54,33 @@ static unsigned long __initdata end_user_pfn = MAXMEM>>PAGE_SHIFT; struct early_res { unsigned long start, end; + char name[16]; }; static struct early_res early_res[MAX_EARLY_RES] __initdata = { - { 0, PAGE_SIZE }, /* BIOS data page */ + { 0, PAGE_SIZE, "BIOS data page" }, /* BIOS data page */ #ifdef CONFIG_SMP - { SMP_TRAMPOLINE_BASE, SMP_TRAMPOLINE_BASE + 2*PAGE_SIZE }, + { SMP_TRAMPOLINE_BASE, SMP_TRAMPOLINE_BASE + 2*PAGE_SIZE, "SMP_TRAMPOLINE" }, #endif {} }; -void __init reserve_early(unsigned long start, unsigned long end) +void __init reserve_early(unsigned long start, unsigned long end, char *name) { int i; struct early_res *r; for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) { r = &early_res[i]; if (end > r->start && start < r->end) - panic("Overlapping early reservations %lx-%lx to %lx-%lx\n", - start, end, r->start, r->end); + panic("Overlapping early reservations %lx-%lx %s to %lx-%lx %s\n", + start, end - 1, name?name:"", r->start, r->end - 1, r->name); } if (i >= MAX_EARLY_RES) panic("Too many early reservations"); r = &early_res[i]; r->start = start; r->end = end; + if (name) + strncpy(r->name, name, sizeof(r->name) - 1); } void __init early_res_to_bootmem(void) @@ -85,6 +88,8 @@ void __init early_res_to_bootmem(void) int i; for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) { struct early_res *r = &early_res[i]; + printk(KERN_INFO "early res: %d [%lx-%lx] %s\n", i, + r->start, r->end - 1, r->name); reserve_bootmem_generic(r->start, r->end - r->start); } } |
