x86: extend e820 early_res support 32bit -fix #3

introduce init_pg_table_start, so xen PV could specify the value.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index c216d3c2a991..0b6cb9fba71e 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -76,7 +76,8 @@ void __init i386_start_kernel(void)
                 reserve_early(ramdisk_image, ramdisk_end, "RAMDISK");
         }
 #endif
-        reserve_early(__pa_symbol(&_end), init_pg_tables_end, "INIT_PG_TABLE");
+        reserve_early(init_pg_tables_start, init_pg_tables_end,
+                        "INIT_PG_TABLE");
 
         reserve_ebda_region();