From: Stefan Reinauer <reinauer@chromium.org>
Date: Tue, 18 Oct 2011 22:11:04 +0000 (-0700)
Subject: selfboot: Allow loading SeaBIOS into a reserved region in the lower 1MB
X-Git-Url: http://wien.tomnetworks.com/gitweb/?p=coreboot.git;a=commitdiff_plain;h=9ec8ed8a40c5c5aff8053693dd2ecd403034605b

selfboot: Allow loading SeaBIOS into a reserved region in the lower 1MB

This fixes loading SeaBIOS when lower memory is reserved.

Change-Id: Idbdcaf95f3307f97307f304d6d677406d059927d
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/732
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
---

diff --git a/src/boot/selfboot.c b/src/boot/selfboot.c
index 99b1493ed..67603f07d 100644
--- a/src/boot/selfboot.c
+++ b/src/boot/selfboot.c
@@ -146,6 +146,11 @@ static int valid_area(struct lb_memory *mem, unsigned long buffer,
 		}
 	}
 	if (i == mem_entries) {
+		if (start < (1024*1024) && end <=(1024*1024)) {
+			printk(BIOS_DEBUG, "Payload (probably SeaBIOS) loaded"
+				" into a reserved area in the lower 1MB\n");
+			return 1;
+		}
 		printk(BIOS_ERR, "No matching ram area found for range:\n");
 		printk(BIOS_ERR, "  [0x%016lx, 0x%016lx)\n", start, end);
 		printk(BIOS_ERR, "Ram areas\n");