From 80fea6e8930384d7d8adae0eb1a00acb7647f7ec Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Mon, 22 Apr 2013 20:56:08 +0200 Subject: S390: ccw firmware: Add start assembly We want to write most of our code in C, so add a small assembly stub that jumps straight into C code for us to continue booting. Signed-off-by: Alexander Graf --- pc-bios/s390-ccw/start.S | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 pc-bios/s390-ccw/start.S (limited to 'pc-bios') diff --git a/pc-bios/s390-ccw/start.S b/pc-bios/s390-ccw/start.S new file mode 100644 index 0000000000..c2b9a19d34 --- /dev/null +++ b/pc-bios/s390-ccw/start.S @@ -0,0 +1,16 @@ +/* + * First stage boot loader for virtio devices. The compiled output goes + * into the pc-bios directory of qemu. + * + * Copyright (c) 2013 Alexander Graf + * + * This work is licensed under the terms of the GNU GPL, version 2 or (at + * your option) any later version. See the COPYING file in the top-level + * directory. + */ + + .globl _start +_start: + +larl %r15, stack + 0x8000 /* Set up stack */ +j main /* And call C */ -- cgit v1.2.3