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Hi Michael, this patch (against your vhost branch) should fix the endianness issues we saw on s390 that I mentioned on irc yesterday. Both the config space and the stats seem to be fine endianness-wise, but the pfns for inflate/deflate were not converted to little endian for virtio-1 (the qemu code is correct). Without the patch, I get an immediate crash on qemu master when started via libvirt

Hi Michael, this patch (against your vhost branch) should fix the endianness issues we saw on s390 that I mentioned on irc yesterday. Both the config space and the stats seem to be fine endianness-wise, but the pfns for inflate/deflate were not converted to little endian for virtio-1 (the qemu code is correct). Without the patch, I get an immediate crash on qemu master when started via libvirt

...32 format before we put them on the queue. Signed-off-by: Cornelia Huck <cornelia.huck at de.ibm.com> --- drivers/virtio/virtio_balloon.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 7b6d74f..89da06c 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -76,6 +76,7 @@ struct virtio_balloon { /* The array of pfns we tell the Host about. */ unsigned int num_pfns; u32 pfns[VIRTIO_BALLOON_ARRAY_PFNS_MAX]; + __virtio32 vpfns[VIRTIO_BALLOON_ARRAY_PFNS_MAX]; /...