linux/drivers/virtio, branch v2.6.30

virtio: fix suspend when using virtio_balloon

2009-04-19T13:44:01Z

Break out of wait_event_interruptible() if freezing has been requested, in the vballoon thread. Without this change vballoon refuses to stop and the system can't suspend. Signed-off-by: Marcelo Tosatti Signed-off-by: Rusty Russell Cc: stable@kernel.org

virtio: more neatening of virtio_ring macros.

2009-03-30T11:25:23Z

Impact: cleanup Roel Kluin drew attention to these macros with his patch: here I neaten them a little further: 1) Add a comment on what START_USE and END_USE are checking, 2) Brackets around _vq in BAD_RING, 3) Neaten formatting for START_USE so it's less than 80 cols. Signed-off-by: Rusty Russell

virtio: fix BAD_RING, START_US and END_USE macros

2009-03-30T11:25:22Z

Impact: cleanup fix BAD_RING, START_US and END_USE macros When these macros aren't called with a variable named vq as first argument, this would result in a build failure. Signed-off-by: Roel Kluin Signed-off-by: Rusty Russell

virtio-pci: do not oops on config change if driver not loaded

2009-02-03T03:17:56Z

The host really shouldn't be notifying us of config changes before the device status is VIRTIO_CONFIG_S_DRIVER or VIRTIO_CONFIG_S_DRIVER_OK. However, if we do happen to be interrupted while we're not attached to a driver, we really shouldn't oops. Prevent this simply by checking that device->driver is non-NULL before trying to notify the driver of config changes. Problem observed by doing a "set_link virtio.0 down" with QEMU before the net driver had been loaded. Signed-off-by: Mark McLoughlin Signed-off-by: Rusty Russell Signed-off-by: Linus Torvalds

virtio: do not statically allocate root device

2009-01-06T18:44:34Z

We shouldn't be statically allocating the root device object, so dynamically allocate it using root_device_register() instead. Also avoids this warning from 'rmmod virtio_pci': Device 'virtio-pci' does not have a release() function, it is broken and must be fixed Signed-off-by: Mark McLoughlin Cc: Anthony Liguori Acked-by: Rusty Russell Signed-off-by: Greg Kroah-Hartman

virtio: add PCI device release() function

2008-12-29T22:56:10Z

Add a release() function for virtio_pci devices so as to avoid: Device 'virtio0' does not have a release() function, it is broken and must be fixed Move the code to free the resources associated with the device from virtio_pci_remove() into this new function. virtio_pci_remove() now merely unregisters the device which should cause the final ref to be dropped and virtio_pci_release_dev() to be called. Signed-off-by: Mark McLoughlin Reported-by: Michael Tokarev Cc: Anthony Liguori Signed-off-by: Rusty Russell

virtio: avoid implicit use of Linux page size in balloon interface

2008-12-29T22:56:04Z

Make the balloon interface always use 4K pages, and convert Linux pfns if necessary. This patch assumes that Linux's PAGE_SHIFT will never be less than 12. Signed-off-by: Hollis Blanchard Signed-off-by: Rusty Russell (modified)

virtio: hand virtio ring alignment as argument to vring_new_virtqueue

2008-12-29T22:56:03Z

This allows each virtio user to hand in the alignment appropriate to their virtio_ring structures. Signed-off-by: Rusty Russell Acked-by: Christian Borntraeger

virtio: Don't use PAGE_SIZE for vring alignment in virtio_pci.

2008-12-29T22:55:58Z

That doesn't work for non-4k guests which are now appearing. Signed-off-by: Rusty Russell

virtio: Don't use PAGE_SIZE in virtio_pci.c

2008-12-29T22:55:57Z

The virtio PCI devices don't depend on the guest page size. This matters now PowerPC virtio is gaining ground (they like 64k pages). Signed-off-by: Rusty Russell