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[PATCH 2/5] virtio: make endian_needed() work during loading


From: marcandre . lureau
Subject: [PATCH 2/5] virtio: make endian_needed() work during loading
Date: Tue, 26 Sep 2023 19:59:22 +0400

From: Marc-André Lureau <marcandre.lureau@redhat.com>

There is no simple way to distinguish when the callback is used for load
or save, AFAICT.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 hw/virtio/virtio.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 4577f3f5b3..7e77e66e99 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -2487,7 +2487,11 @@ static bool virtio_device_endian_needed(void *opaque)
 {
     VirtIODevice *vdev = opaque;
 
-    assert(vdev->device_endian != VIRTIO_DEVICE_ENDIAN_UNKNOWN);
+    /* On load, endian is UNKNOWN */
+    if (vdev->device_endian == VIRTIO_DEVICE_ENDIAN_UNKNOWN) {
+        return false;
+    }
+
     if (!virtio_vdev_has_feature(vdev, VIRTIO_F_VERSION_1)) {
         return vdev->device_endian != virtio_default_endian();
     }
-- 
2.41.0




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