so prepare to make one more clean early_res.c
-v2: don't need to reserve first page in early_res
because we already mark that in e820 as reserved already.
Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
---
arch/x86/kernel/e820.c | 22 ++--------------------
arch/x86/kernel/head32.c | 10 ++++++++++
2 files changed, 12 insertions(+), 20 deletions(-)
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 90a8529..4004f10 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -743,29 +743,11 @@ struct early_res {
char name[15];
char overlap_ok;
};
-static struct early_res early_res_x[MAX_EARLY_RES_X] __initdata = {
- { 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
-
- {}
-};
+static struct early_res early_res_x[MAX_EARLY_RES_X] __initdata;
static int max_early_res __initdata = MAX_EARLY_RES_X;
static struct early_res *early_res __initdata = &early_res_x[0];
-static int early_res_count __initdata =
-#ifdef CONFIG_X86_32
- 2
-#else
- 1
-#endif
- ;
+static int early_res_count __initdata;
static int __init find_overlapped_early(u64 start, u64 end)
{
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index 5051b94..adedeef 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -29,6 +29,16 @@ static void __init i386_default_early_setup(void)
void __init i386_start_kernel(void)
{
+#ifdef 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)
+ */
+ reserve_early_overlap_ok(PAGE_SIZE, PAGE_SIZE + PAGE_SIZE,
+ "EX TRAMPOLINE");
+#endif
+
reserve_early(__pa_symbol(&_text), __pa_symbol(&__bss_stop), "TEXT DATA BSS");
#ifdef CONFIG_BLK_DEV_INITRD
--
1.6.4.2
--
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