From: Michael Brown <mcb30@etherboot.org>
Date: Thu, 28 Jun 2007 22:37:49 +0000 (+0100)
Subject: Fix stack on return from PXE NBP so that we can return properly.
X-Git-Tag: v0.9.3~357
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d71b116f54de13983ea3310c7a58219089bd3f46;p=thirdparty%2Fipxe.git

Fix stack on return from PXE NBP so that we can return properly.
---

diff --git a/src/arch/i386/image/pxe_image.c b/src/arch/i386/image/pxe_image.c
index 8db34d5f6..60711edc0 100644
--- a/src/arch/i386/image/pxe_image.c
+++ b/src/arch/i386/image/pxe_image.c
@@ -63,7 +63,8 @@ static int pxe_exec ( struct image *image __unused ) {
 	__asm__ __volatile__ ( REAL_CODE ( "pushw %%cx\n\t"
 					   "pushw %%ax\n\t"
 					   "movw %%cx, %%es\n\t"
-					   "lcall $0, $0x7c00\n\t" )
+					   "lcall $0, $0x7c00\n\t"
+					   "addw $4, %%sp\n\t" )
 			       : "=a" ( rc ), "=b" ( discard_b ),
 			         "=c" ( discard_c )
 			       :  "a" ( & __from_text16 ( ppxe ) ),