[SeaBIOS] [SeaBIOS PATCH v2] Fix regression of commit 87b533bf

Amos Kong akong at redhat.com
Tue Sep 20 10:00:57 CEST 2011

>From 4678a3cb0e0a3cd7a4bc3d284c5719fdba90bc61 Mon Sep 17 00:00:00 2001
From: Kevin O'Connor <kevin at koconnor.net>
Date: Tue, 20 Sep 2011 15:43:55 +0800
Subject: [PATCH V2] Fix regression of commit 87b533bf

From: Kevin O'Connor <kevin at koconnor.net>

After adding more device entries in ACPI DSDT tables,
the filesize of bios.bin changed from 128K to 256K.
But bios could not initialize successfully.

This is a regression since seabios commit 87b533bf. Prior to
that commit, seabios did not mark the early 32bit initialization
code as init code. However, a side effect of marking that code
(handle_post) as init code is that it is more likely the linker
could place the code at an address less than 0xe0000.
The patch (just a hack) would cover up the issue.

Changes from v1:
- correct the attribution

Signed-off-by: Kevin O'Connor <kevin at koconnor.net>
 src/post.c |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/src/post.c b/src/post.c
index e195e89..bc2e548 100644
--- a/src/post.c
+++ b/src/post.c
@@ -336,7 +336,7 @@ reloc_init(void)
 // Start of Power On Self Test (POST) - the BIOS initilization phase.
 // This function does the setup needed for code relocation, and then
 // invokes the relocation and main setup code.
@@ -356,6 +356,14 @@ handle_post(void)
     // Allow writes to modify bios area (0xf0000)
+    void handle_post2(void);
+    handle_post2();
     HaveRunPost = 1;
     // Detect ram and setup internal malloc.

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