x86: print out more info in e820_update_range()
Impact: help debug e820 bugs Try to print out more info, to catch wrong call parameters. Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <49BCB557.3030000@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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6d7942dc2a
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c61cf4cfe7
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@ -131,6 +131,31 @@ void __init e820_add_region(u64 start, u64 size, int type)
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__e820_add_region(&e820, start, size, type);
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}
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static void __init e820_print_type(u32 type)
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{
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switch (type) {
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case E820_RAM:
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case E820_RESERVED_KERN:
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printk(KERN_CONT "(usable)");
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break;
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case E820_RESERVED:
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printk(KERN_CONT "(reserved)");
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break;
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case E820_ACPI:
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printk(KERN_CONT "(ACPI data)");
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break;
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case E820_NVS:
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printk(KERN_CONT "(ACPI NVS)");
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break;
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case E820_UNUSABLE:
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printk(KERN_CONT "(unusable)");
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break;
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default:
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printk(KERN_CONT "type %u", type);
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break;
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}
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}
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void __init e820_print_map(char *who)
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{
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int i;
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@ -140,27 +165,8 @@ void __init e820_print_map(char *who)
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(unsigned long long) e820.map[i].addr,
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(unsigned long long)
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(e820.map[i].addr + e820.map[i].size));
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switch (e820.map[i].type) {
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case E820_RAM:
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case E820_RESERVED_KERN:
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printk(KERN_CONT "(usable)\n");
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break;
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case E820_RESERVED:
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printk(KERN_CONT "(reserved)\n");
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break;
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case E820_ACPI:
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printk(KERN_CONT "(ACPI data)\n");
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break;
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case E820_NVS:
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printk(KERN_CONT "(ACPI NVS)\n");
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break;
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case E820_UNUSABLE:
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printk("(unusable)\n");
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break;
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default:
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printk(KERN_CONT "type %u\n", e820.map[i].type);
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break;
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}
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e820_print_type(e820.map[i].type);
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printk(KERN_CONT "\n");
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}
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}
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@ -437,6 +443,14 @@ static u64 __init __e820_update_range(struct e820map *e820x, u64 start,
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size = ULLONG_MAX - start;
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end = start + size;
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printk(KERN_DEBUG "e820 update range: %016Lx - %016Lx ",
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(unsigned long long) start,
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(unsigned long long) end);
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e820_print_type(old_type);
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printk(KERN_CONT " ==> ");
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e820_print_type(new_type);
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printk(KERN_CONT "\n");
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for (i = 0; i < e820x->nr_map; i++) {
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struct e820entry *ei = &e820x->map[i];
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u64 final_start, final_end;
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