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Diffstat (limited to 'arch/x86/kernel/e820.c')
-rw-r--r--arch/x86/kernel/e820.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index d17d482a04f4..a1a7876cadcb 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -724,7 +724,7 @@ core_initcall(e820_mark_nvs_memory);
/*
* Early reserved memory areas.
*/
-#define MAX_EARLY_RES 20
+#define MAX_EARLY_RES 32
struct early_res {
u64 start, end;
@@ -732,7 +732,16 @@ struct early_res {
char overlap_ok;
};
static struct early_res early_res[MAX_EARLY_RES] __initdata = {
- { 0, PAGE_SIZE, "BIOS data page" }, /* BIOS data page */
+ { 0, PAGE_SIZE, "BIOS data page", 1 }, /* BIOS data page */
+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_TRAMPOLINE)
+ /*
+ * But first pinch a few for the stack/trampoline stuff
+ * FIXME: Don't need the extra page at 4K, but need to fix
+ * trampoline before removing it. (see the GDT stuff)
+ */
+ { PAGE_SIZE, PAGE_SIZE + PAGE_SIZE, "EX TRAMPOLINE", 1 },
+#endif
+
{}
};