qemu/include
Stefano Garzarella d6a9378f47 vhost-vsock: fix migration issue when seqpacket is supported
Commit 1e08fd0a46 ("vhost-vsock: SOCK_SEQPACKET feature bit support")
enabled the SEQPACKET feature bit.
This commit is released with QEMU 6.1, so if we try to migrate a VM where
the host kernel supports SEQPACKET but machine type version is less than
6.1, we get the following errors:

    Features 0x130000002 unsupported. Allowed features: 0x179000000
    Failed to load virtio-vhost_vsock:virtio
    error while loading state for instance 0x0 of device '0000:00:05.0/virtio-vhost_vsock'
    load of migration failed: Operation not permitted

Let's disable the feature bit for machine types < 6.1.
We add a new OnOffAuto property for this, called `seqpacket`.
When it is `auto` (default), QEMU behaves as before, trying to enable the
feature, when it is `on` QEMU will fail if the backend (vhost-vsock
kernel module) doesn't support it.

Fixes: 1e08fd0a46 ("vhost-vsock: SOCK_SEQPACKET feature bit support")
Cc: qemu-stable@nongnu.org
Reported-by: Jiang Wang <jiang.wang@bytedance.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20210921161642.206461-2-sgarzare@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-10-05 17:30:57 -04:00
..
authz Prefer 'on' | 'off' over 'yes' | 'no' for bool options 2021-01-29 17:07:53 +00:00
block block: use int64_t instead of int in driver discard handlers 2021-09-29 13:46:32 -05:00
chardev chardev: add some comments about the class methods 2021-09-14 16:57:11 +04:00
crypto crypto: Make QCryptoTLSCreds* structures private 2021-06-29 18:30:24 +01:00
disas Drop the deprecated lm32 target 2021-05-12 18:20:25 +02:00
exec memory: Name all the memory listeners 2021-09-30 15:30:24 +02:00
fpu Remove leading underscores from QEMU defines 2021-06-21 05:49:01 +02:00
hw vhost-vsock: fix migration issue when seqpacket is supported 2021-10-05 17:30:57 -04:00
io io: add qio_channel_readv_full_all_eof & qio_channel_readv_full_all helpers 2021-02-10 09:23:28 +00:00
libdecnumber include: Make headers more self-contained 2019-08-16 13:31:51 +02:00
migration vfio: Support for RamDiscardManager in the vIOMMU case 2021-07-08 15:54:45 -04:00
monitor target/i386: Add HMP and QMP interfaces for SGX 2021-09-30 15:30:24 +02:00
net vhost_net: do not assume nvqs is always 2 2021-09-04 17:34:05 -04:00
qapi qapi: introduce forwarding visitor 2021-07-23 18:17:17 +02:00
qemu host-utils: introduce uabs64() 2021-09-29 19:37:38 +10:00
qom qom: export more functions for use with non-UserCreatable objects 2021-07-06 08:33:51 +02:00
scsi scsi: inline sg_io_sense_from_errno() into the callers. 2021-03-06 11:42:56 +01:00
semihosting semihosting: Move include/hw/semihosting/ -> include/semihosting/ 2021-03-10 15:34:12 +00:00
standard-headers linux-headers: Update 2021-07-09 11:01:06 +10:00
sysemu memory: Name all the memory listeners 2021-09-30 15:30:24 +02:00
tcg tcg: Remove tcg_global_reg_new defines 2021-09-14 12:00:20 -07:00
ui ui/gtk-egl: Wait for the draw signal for dmabuf blobs 2021-09-15 08:41:59 +02:00
user Remove leading underscores from QEMU defines 2021-06-21 05:49:01 +02:00
elf.h linux-user: elf: s390x: Prepare for Vector enhancements facility 2021-06-21 08:48:21 +02:00
glib-compat.h configure: bump min required glib version to 2.56 2021-06-02 09:11:32 +02:00
qemu-common.h qemu-common.h: Update copyright string to 2021 2021-03-09 22:19:24 +01:00
qemu-io.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
trace-tcg.h