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Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

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Pull virtio updates from Rusty Russell:
 "Nothing really exciting: some groundwork for changing virtio endian,
  and some robustness fixes for broken virtio devices, plus minor
  tweaks"

* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  virtio_scsi: verify if queue is broken after virtqueue_get_buf()
  x86, asmlinkage, lguest: Pass in globals into assembler statement
  virtio: mmio: fix signature checking for BE guests
  virtio_ring: adapt to notify() returning bool
  virtio_net: verify if queue is broken after virtqueue_get_buf()
  virtio_console: verify if queue is broken after virtqueue_get_buf()
  virtio_blk: verify if queue is broken after virtqueue_get_buf()
  virtio_ring: add new function virtqueue_is_broken()
  virtio_test: verify if virtqueue_kick() succeeded
  virtio_net: verify if virtqueue_kick() succeeded
  virtio_ring: let virtqueue_{kick()/notify()} return a bool
  virtio_ring: change host notification API
  virtio_config: remove virtio_config_val
  virtio: use size-based config accessors.
  virtio_config: introduce size-based accessors.
  virtio_ring: plug kmemleak false positive.
  virtio: pm: use CONFIG_PM_SLEEP instead of CONFIG_PM
This commit is contained in:
Linus Torvalds
2013-11-15 13:28:47 +09:00
parent ce6513f758 2bf4fd3139
commit b746f9c794
21 changed files with 310 additions and 166 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
tools/virtio/virtio_test.c
View File

@ -41,13 +41,14 @@ struct vdev_info {
struct vhost_memory *mem;
};
void vq_notify(struct virtqueue *vq)
bool vq_notify(struct virtqueue *vq)
{
struct vq_info *info = vq->priv;
unsigned long long v = 1;
int r;
r = write(info->kick, &v, sizeof v);
assert(r == sizeof v);
return true;
}
void vq_callback(struct virtqueue *vq)
@ -171,7 +172,8 @@ static void run_test(struct vdev_info *dev, struct vq_info *vq,
GFP_ATOMIC);
if (likely(r == 0)) {
++started;
virtqueue_kick(vq->vq);
if (unlikely(!virtqueue_kick(vq->vq))
r = -1;
}
} else
r = -1;

13
tools/virtio/vringh_test.c
View File

@ -22,7 +22,7 @@ static u64 user_addr_offset;
#define RINGSIZE 256
#define ALIGN 4096
static void never_notify_host(struct virtqueue *vq)
static bool never_notify_host(struct virtqueue *vq)
{
abort();
}
@ -65,17 +65,22 @@ struct guest_virtio_device {
unsigned long notifies;
};
static void parallel_notify_host(struct virtqueue *vq)
static bool parallel_notify_host(struct virtqueue *vq)
{
int rc;
struct guest_virtio_device *gvdev;
gvdev = container_of(vq->vdev, struct guest_virtio_device, vdev);
write(gvdev->to_host_fd, "", 1);
rc = write(gvdev->to_host_fd, "", 1);
if (rc < 0)
return false;
gvdev->notifies++;
return true;
}
static void no_notify_host(struct virtqueue *vq)
static bool no_notify_host(struct virtqueue *vq)
{
return true;
}
#define NUM_XFERS (10000000)