user/sven/linux.git/drivers/virtio, branch v3.14.27

virtio_pci: fix virtio spec compliance on restore

2014-11-14T16:59:50Z

commit 6fbc198cf623944ab60a1db6d306a4d55cdd820d upstream. On restore, virtio pci does the following: + set features + init vqs etc - device can be used at this point! + set ACKNOWLEDGE,DRIVER and DRIVER_OK status bits This is in violation of the virtio spec, which requires the following order: - ACKNOWLEDGE - DRIVER - init vqs - DRIVER_OK This behaviour will break with hypervisors that assume spec compliant behaviour. It seems like a good idea to have this patch applied to stable branches to reduce the support butden for the hypervisors. Cc: Amit Shah Signed-off-by: Michael S. Tsirkin Signed-off-by: Rusty Russell Signed-off-by: Greg Kroah-Hartman

virtio_balloon: don't softlockup on huge balloon changes.

2014-05-13T11:32:48Z

commit 1f74ef0f2d7d692fcd615621e0e734c3e7771413 upstream. When adding or removing 100G from a balloon: BUG: soft lockup - CPU#0 stuck for 22s! [vballoon:367] We have a wait_event_interruptible(), but the condition is always true (more ballooning to do) so we don't ever sleep. We also have a wait_event() for the host to ack, but that is also always true as QEMU is synchronous for balloon operations. Reported-by: Gopesh Kumar Chaudhary Signed-off-by: Rusty Russell Signed-off-by: Greg Kroah-Hartman

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

2014-01-23T06:24:35Z

Pull virtio update from Rusty Russell: "A few simple fixes. Quiet cycle" * tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: drivers: virtio: Mark function virtballoon_migratepage() as static in virtio_balloon.c virtio-scsi: Fix hotcpu_notifier use-after-free with virtscsi_freeze virtio: pci: remove unnecessary pci_set_drvdata()

drivers: virtio: Mark function virtballoon_migratepage() as static in virtio_balloon.c

2014-01-15T23:52:28Z

Mark the function virtballoon_migratepage() as static in virtio_balloon.c because it is not used outside this file. This eliminates the following warning in virtio_balloon.c: drivers/virtio/virtio_balloon.c:372:5: warning: no previous prototype for ‘virtballoon_migratepage’ [-Wmissing-prototypes] Signed-off-by: Rashika Kheria Reviewed-by: Josh Triplett Acked-by: Michael S. Tsirkin Signed-off-by: Rusty Russell

virtio_balloon: update_balloon_size(): update correct field

2013-12-05T02:42:39Z

According to the virtio spec, the device configuration field that should be updated after an inflation or deflation operation is the 'actual' field, not the 'num_pages' one. Commit 855e0c5288177bcb193f6f6316952d2490478e1c swapped them in update_balloon_size(). Fix it. Signed-off-by: Luiz Capitulino Signed-off-by: Rusty Russell Fixes: 855e0c5288177bcb193f6f6316952d2490478e1c

virtio: pci: remove unnecessary pci_set_drvdata()

2013-12-04T03:50:26Z

The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han Signed-off-by: Rusty Russell

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

2013-11-15T04:28:47Z

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

virtio: mmio: fix signature checking for BE guests

2013-11-07T01:43:04Z

As virtio-mmio config registers are specified to be little-endian, using readl() to read the magic value and then memcmp() to check it fails on BE (as readl() has an implicit swab). Fix it by encoding the magic value as an integer instead of a string. Cc: Michael S. Tsirkin Signed-off-by: Marc Zyngier Acked-by: Pawel Moll Signed-off-by: Rusty Russell

virtio_ring: adapt to notify() returning bool

2013-11-05T10:51:08Z

Correct if statement to check for bool returned by notify() (introduced in 5b1bf7cb673a). Signed-off-by: Heinz Graalfs Signed-off-by: Rusty Russell

virtio_ring: add new function virtqueue_is_broken()

2013-10-29T00:58:17Z

Add new function virtqueue_is_broken(). Callers of virtqueue_get_buf() should check for a broken queue. Signed-off-by: Heinz Graalfs Signed-off-by: Rusty Russell