diff options
| -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 a2957580320..dc2ca8ad360 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"; } |