File 0313-exec-introduce-target_words_bigendi.patch of Package qemu.8405

From 7b62241d7b3d2c63361b5e2201cab817a3e3d043 Mon Sep 17 00:00:00 2001
From: Greg Kurz <gkurz@linux.vnet.ibm.com>
Date: Tue, 24 Jun 2014 19:26:29 +0200
Subject: [PATCH] exec: introduce target_words_bigendian() helper

We currently have a virtio_is_big_endian() helper that provides the target
endianness to the virtio code. As of today, the helper returns a fixed
compile-time value. Of course, this will have to change if we want to
support target endianness changes at run-time.

Let's move the TARGET_WORDS_BIGENDIAN bits out to a new helper and have
virtio_is_big_endian() implemented on top of it.

This patch doesn't change any functionality.

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 98ed8ecfc9dd9e22e4251251492f062dde32c3c4)
[BR: Fix and/or infrastructure for BSC#1038396]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 include/hw/virtio/virtio.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 038c65c28a..78dcd0bd4c 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -265,9 +265,9 @@ void virtio_queue_set_host_notifier_fd_handler(VirtQueue *vq, bool assign,
 void virtio_queue_notify_vq(VirtQueue *vq);
 void virtio_irq(VirtQueue *vq);
 
-static inline bool virtio_is_big_endian(VirtIODevice *vdev)
+bool target_words_bigendian(void);
+static inline bool virtio_is_big_endian(void)
 {
-    assert(vdev->device_endian != VIRTIO_DEVICE_ENDIAN_UNKNOWN);
-    return vdev->device_endian == VIRTIO_DEVICE_ENDIAN_BIG;
+    return target_words_bigendian();
 }
 #endif