Messages in this thread | | | Date | Mon, 14 Jan 2013 11:04:36 -0800 | Subject | Re: [PATCH] x86 e820: only void usable memory areas in memmap=exactmap case | From | Yinghai Lu <> |
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On Mon, Jan 14, 2013 at 7:05 AM, Thomas Renninger <trenn@suse.de> wrote: > What is this for?: > @@ -871,6 +879,11 @@ static int __init parse_memmap_one(char > userdef = 1; > if (*p == '@') { > start_at = memparse(p+1, &p); > + if (exactusablemap_parsed) { > + /* remove all range with other types */ > + e820_remove_range(start_at, mem_size, > + E820_RAM, 0); > + } > e820_add_region(start_at, mem_size, E820_RAM); > } else if (*p == '#') { > start_at = memparse(p+1, &p);
remove all old renges before add E820_RAM, otherwise new add E820 ranges could be ignored.
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