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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-06-16 14:54:46 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-08 12:48:28 +0200 |
| commit | be5bf9fa1c327fa6fd6e7ba44665437dd558dfe3 (patch) | |
| tree | 60b3ef58343f4ed082eba0a21916d690924c5508 /arch/x86/xen | |
| parent | d52d53b8a5b258bfaab9223a5e7284fcfdd48577 (diff) | |
xen: reserve Xen-specific memory in e820 map
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: the arch/x86 maintainers <x86@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/xen')
| -rw-r--r-- | arch/x86/xen/setup.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index a29575803204..dc2ca8ad3603 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -40,9 +40,22 @@ char * __init xen_memory_setup(void) max_pfn = min(MAX_DOMAIN_PAGES, max_pfn); e820.nr_map = 0; + e820_add_region(0, LOWMEMSIZE(), E820_RAM); e820_add_region(HIGH_MEMORY, PFN_PHYS(max_pfn)-HIGH_MEMORY, E820_RAM); + /* + * Reserve Xen bits: + * - mfn_list + * - xen_start_info + * See comment above "struct start_info" in <xen/interface/xen.h> + */ + e820_add_region(__pa(xen_start_info->mfn_list), + xen_start_info->pt_base - xen_start_info->mfn_list, + E820_RESERVED); + + sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map); + return "Xen"; } |