diff options
| author | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-09-02 17:10:12 -0700 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-10-22 12:57:29 -0700 |
| commit | b5b43ced7a6e79d30df3232b37dc82c5d8dfa843 (patch) | |
| tree | b931036d5811e710a1193430d76fff12f719021c /arch | |
| parent | 36bc251b87f88147e9d8346e4b431f42353c3d38 (diff) | |
xen: add extra pages for E820 RAM regions, even if beyond mem_end
If an entire E820 RAM region is beyond mem_end, still add its
pages to the extra area so that space can be used by the kernel.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/xen/setup.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index eac010008cd..1e85e26efa6 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -158,9 +158,8 @@ char * __init xen_memory_setup(void) xen_extra_mem_start = mem_end; for (i = 0; i < memmap.nr_entries; i++) { unsigned long long end = map[i].addr + map[i].size; + if (map[i].type == E820_RAM) { - if (map[i].addr > mem_end) - continue; if (end > mem_end) { /* Truncate region to max_mem. */ map[i].size -= end - mem_end; @@ -169,7 +168,9 @@ char * __init xen_memory_setup(void) } } else if (map[i].type != E820_RAM) xen_extra_mem_start = end; - if (map[i].size > 0) + + if ((map[i].type != E820_RAM || map[i].addr < mem_end) && + map[i].size > 0) e820_add_region(map[i].addr, map[i].size, map[i].type); } |