"-mfunction-return=thunk -mindirect-branch-register" are only valid
for x86. So introduce compiler operation check to avoid such issues
Fixes: 0d0ed40061 ("tools/virtio: enable to build with retpoline")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Message-Id: <20230323040024.3809108-1-peng.fan@oss.nxp.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The canonical location for the tracefs filesystem is at /sys/kernel/tracing.
But, from Documentation/trace/ftrace.rst:
Before 4.1, all ftrace tracing control files were within the debugfs
file system, which is typically located at /sys/kernel/debug/tracing.
For backward compatibility, when mounting the debugfs file system,
the tracefs file system will be automatically mounted at:
/sys/kernel/debug/tracing
A few spots in tools/virtio still refer to this older debugfs
path, so let's update them to avoid confusion.
Signed-off-by: Ross Zwisler <zwisler@google.com>
Message-Id: <20230215223350.2658616-6-zwisler@google.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Fix the build dependency for virtio_test. The virtio_ring that is used from
the test requires container_of_const(). Change to use container_of.h kernel
header directly and adapt related codes.
Signed-off-by: Shunsuke Mie <mie@igel.co.jp>
Message-Id: <20230417022037.917668-2-mie@igel.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
When we get help information, we should return directly, and we should not
execute test cases. Move the exit() directly into the help() function and
remove it from case '?'.
Signed-off-by: Rong Tao <rongtao@cestc.cn>
Message-Id: <tencent_822CEBEB925205EA1573541CD1C2604F4805@qq.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
We need to have a unique chardev for each data path, else the chardevs
will collide and qemu will die with this message:
qemu-system-x86_64: -device
virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel0,
id=channel1,name=trace-path-cpu0:
Property 'virtserialport.chardev' can't take value 'charchannel0':
Device 'charchannel0' is in use
Signed-off-by: Ross Zwisler <zwisler@google.com>
Message-Id: <20230215223350.2658616-7-zwisler@google.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Fix the build caused by missing kmsan_handle_dma() and is_power_of_2() that
are used in drivers/virtio/virtio_ring.c.
Signed-off-by: Shunsuke Mie <mie@igel.co.jp>
Message-Id: <20230110034310.779744-1-mie@igel.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This gets rid of the last references to smp_read_barrier_depends()
which for the kernel side was removed in v5.9. The serialization
required for Alpha is done inside READ_ONCE() instead of having
users deal with it. Simply use a full barrier, the architecture
does not have rmb in the first place.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Message-Id: <20221128034347.990-3-dave@stgolabs.net>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Fix virtio test compilation failure caused by vq reset.
../../drivers/virtio/virtio_ring.c: In function ‘vring_create_virtqueue_packed’:
../../drivers/virtio/virtio_ring.c:1999:8: error: ‘struct virtqueue’ has no member named ‘reset’
1999 | vq->vq.reset = false;
| ^
../../drivers/virtio/virtio_ring.c: In function ‘__vring_new_virtqueue’:
../../drivers/virtio/virtio_ring.c:2493:8: error: ‘struct virtqueue’ has no member named ‘reset’
2493 | vq->vq.reset = false;
| ^
../../drivers/virtio/virtio_ring.c: In function ‘virtqueue_resize’:
../../drivers/virtio/virtio_ring.c:2587:18: error: ‘struct virtqueue’ has no member named ‘num_max’
2587 | if (num > vq->vq.num_max)
| ^
../../drivers/virtio/virtio_ring.c:2596:11: error: ‘struct virtio_device’ has no member named ‘config’
2596 | if (!vdev->config->disable_vq_and_reset)
| ^~
../../drivers/virtio/virtio_ring.c:2599:11: error: ‘struct virtio_device’ has no member named ‘config’
2599 | if (!vdev->config->enable_vq_after_reset)
| ^~
../../drivers/virtio/virtio_ring.c:2602:12: error: ‘struct virtio_device’ has no member named ‘config’
2602 | err = vdev->config->disable_vq_and_reset(_vq);
| ^~
../../drivers/virtio/virtio_ring.c:2614:10: error: ‘struct virtio_device’ has no member named ‘config’
2614 | if (vdev->config->enable_vq_after_reset(_vq))
| ^~
make: *** [<builtin>: virtio_ring.o] Error 1
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Message-Id: <20220830110549.103168-1-xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Fix the build caused by the following changes:
- phys_addr_t is now defined in tools/include/linux/types.h
- dev_warn_once() is used in drivers/virtio/virtio_ring.c
- linux/uio.h included by vringh.h use INT_MAX defined in limits.h
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20220705072249.7867-1-sgarzare@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Jason Wang <jasowang@redhat.com>
There is currently only one place to reference __vring_new_virtqueue()
directly from the outside of virtio core. And here vring_new_virtqueue()
can be used instead.
Subsequent patches will modify __vring_new_virtqueue, so stop it as an
export symbol for now.
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20220801063902.129329-8-xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
When using pthreads, one has to compile and link with -lpthread,
otherwise e.g. glibc is not guaranteed to be reentrant.
This replaces -lpthread.
Reported-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Pull virtio updates from Michael Tsirkin:
- IRQ bypass support for vdpa and IFC
- MLX5 vdpa driver
- Endianness fixes for virtio drivers
- Misc other fixes
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (71 commits)
vdpa/mlx5: fix up endian-ness for mtu
vdpa: Fix pointer math bug in vdpasim_get_config()
vdpa/mlx5: Fix pointer math in mlx5_vdpa_get_config()
vdpa/mlx5: fix memory allocation failure checks
vdpa/mlx5: Fix uninitialised variable in core/mr.c
vdpa_sim: init iommu lock
virtio_config: fix up warnings on parisc
vdpa/mlx5: Add VDPA driver for supported mlx5 devices
vdpa/mlx5: Add shared memory registration code
vdpa/mlx5: Add support library for mlx5 VDPA implementation
vdpa/mlx5: Add hardware descriptive header file
vdpa: Modify get_vq_state() to return error code
net/vdpa: Use struct for set/get vq state
vdpa: remove hard coded virtq num
vdpasim: support batch updating
vhost-vdpa: support IOTLB batching hints
vhost-vdpa: support get/set backend features
vhost: generialize backend features setting/getting
vhost-vdpa: refine ioctl pre-processing
vDPA: dont change vq irq after DRIVER_OK
...
Now that the corresponding feature bit has been renamed,
rename the quirk too - it's about special ways to
do DMA, not necessarily about the IOMMU.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Rename the bit to match latest virtio spec.
Add a compat macro to avoid breaking existing userspace.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Allow building vringh without IOTLB (that's the case for userspace
builds, will be useful for CAIF/VOD down the road too).
Update for API tweaks.
Don't include vringh with userspace builds.
Cc: Jason Wang <jasowang@redhat.com>
Cc: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Pull virtio updates from Michael Tsirkin:
- Some bug fixes
- The new vdpa subsystem with two first drivers
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio-balloon: Revert "virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM"
vdpa: move to drivers/vdpa
virtio: Intel IFC VF driver for VDPA
vdpasim: vDPA device simulator
vhost: introduce vDPA-based backend
virtio: introduce a vDPA based transport
vDPA: introduce vDPA bus
vringh: IOTLB support
vhost: factor out IOTLB
vhost: allow per device message handler
vhost: refine vhost and vringh kconfig
virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
virtio-net: Introduce hash report feature
virtio-net: Introduce RSS receive steering feature
virtio-net: Introduce extended RSC feature
tools/virtio: option to build an out of tree module
Handy for testing with distro kernels.
Warn that the resulting module is completely unsupported,
and isn't intended for production use.
Usage:
make oot # builds vhost_test.ko, vhost.ko
make oot-clean # cleans out files created
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Pull virtio fixes from Michael Tsirkin:
"Several fixes, some of them for CVEs"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost: scsi: add weight support
vhost: vsock: add weight support
vhost_net: fix possible infinite loop
vhost: introduce vhost_exceeds_weight()
virtio: Fix indentation of VIRTIO_MMIO
virtio: add unlikely() to WARN_ON_ONCE()
