From: Alexander Graf <agraf@suse.de>
To: qemu-devel@nongnu.org
Cc: Christian Borntraeger <borntraeger@de.ibm.com>,
Dominik Dingel <dingel@linux.vnet.ibm.com>
Subject: [Qemu-devel] [PATCH 04/12] S390: ccw firmware: Add start assembly
Date: Mon, 22 Apr 2013 21:18:10 +0200 [thread overview]
Message-ID: <1366658298-9275-5-git-send-email-agraf@suse.de> (raw)
In-Reply-To: <1366658298-9275-1-git-send-email-agraf@suse.de>
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 <agraf@suse.de>
---
pc-bios/s390-ccw/start.S | 16 ++++++++++++++++
1 files changed, 16 insertions(+), 0 deletions(-)
create mode 100644 pc-bios/s390-ccw/start.S
diff --git a/pc-bios/s390-ccw/start.S b/pc-bios/s390-ccw/start.S
new file mode 100644
index 0000000..c2b9a19
--- /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 <agraf@suse.de>
+ *
+ * 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 */
--
1.6.0.2
next prev parent reply other threads:[~2013-04-22 19:19 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-22 19:18 [Qemu-devel] [PATCH 00/12] S390: Add virtio-ccw firmware Alexander Graf
2013-04-22 19:18 ` [Qemu-devel] [PATCH 01/12] S390: Make IPL reset address dynamic Alexander Graf
2013-04-22 19:18 ` [Qemu-devel] [PATCH 02/12] S390: IPL: Support ELF firmware Alexander Graf
2013-04-22 19:18 ` [Qemu-devel] [PATCH 03/12] S390: IPL: Use different firmware for different machines Alexander Graf
2013-04-22 19:18 ` Alexander Graf [this message]
2013-04-22 19:18 ` [Qemu-devel] [PATCH 05/12] S390: ccw firmware: Add main program Alexander Graf
2013-04-23 8:43 ` Christian Borntraeger
2013-04-23 8:58 ` Cornelia Huck
2013-04-23 11:35 ` Alexander Graf
2013-04-23 11:51 ` Cornelia Huck
2013-04-22 19:18 ` [Qemu-devel] [PATCH 06/12] S390: ccw firmware: Add sclp output Alexander Graf
2013-04-22 19:18 ` [Qemu-devel] [PATCH 07/12] S390: ccw firmware: Add virtio device drivers Alexander Graf
2013-04-23 11:24 ` Cornelia Huck
2013-04-22 19:18 ` [Qemu-devel] [PATCH 08/12] S390: ccw firmware: Add glue header Alexander Graf
2013-04-22 19:18 ` [Qemu-devel] [PATCH 09/12] S390: ccw firmware: Add bootmap interpreter Alexander Graf
2013-04-22 19:18 ` [Qemu-devel] [PATCH 10/12] S390: ccw firmware: Add Makefile Alexander Graf
2013-04-23 10:31 ` Christian Borntraeger
2013-04-22 19:18 ` [Qemu-devel] [PATCH 11/12] S390: ccw firmware: Add compiled blob Alexander Graf
2013-04-22 19:18 ` [Qemu-devel] [PATCH 12/12] S390: CCW: Use new, working firmware by default Alexander Graf
2013-04-23 9:20 ` [Qemu-devel] [PATCH 00/12] S390: Add virtio-ccw firmware Christian Borntraeger
2013-04-23 11:38 ` Alexander Graf
2013-04-23 11:23 ` [Qemu-devel] [PATCH 0/4] updates for s390-ccw.img Christian Borntraeger
2013-04-23 11:23 ` [Qemu-devel] [PATCH 1/4] s390-ccw.img: replace while loop with a disabled wait on s390 bios Christian Borntraeger
2013-04-23 11:23 ` [Qemu-devel] [PATCH 2/4] s390-ccw.img: build s390-ccw rom on s3900 system by default Christian Borntraeger
2013-04-23 11:23 ` [Qemu-devel] [PATCH 3/4] s390-ccw.img: Fix compile warning in s390 ccw virtio code Christian Borntraeger
2013-04-23 11:31 ` Alexander Graf
2013-04-23 11:45 ` Christian Borntraeger
2013-04-26 6:38 ` Alexander Graf
2013-04-23 11:23 ` [Qemu-devel] [PATCH 4/4] s390-ccw.img: Take care of the elf->img transition Christian Borntraeger
2013-04-23 11:33 ` [Qemu-devel] [PATCH 0/4] updates for s390-ccw.img Alexander Graf
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