search for: virtballoon_thaw

Hello, Turns out S3 is not different from S4 for virtio devices: the device is assumed to be reset, so the host and guest state are to be assumed to be out of sync upon resume. We handle the S4 case with exactly the same scenario, so just point the suspend/resume routines to the freeze/restore ones. Once that is done, we also use the PM API's macro to initialise the sleep functions. A

Hello, Turns out S3 is not different from S4 for virtio devices: the device is assumed to be reset, so the host and guest state are to be assumed to be out of sync upon resume. We handle the S4 case with exactly the same scenario, so just point the suspend/resume routines to the freeze/restore ones. Once that is done, we also use the PM API's macro to initialise the sleep functions. A

...qs(vdev); return 0; } +static int restore_common(struct virtio_device *vdev) +{ + struct virtio_balloon *vb = vdev->priv; + int ret; + + ret = init_vqs(vdev->priv); + if (ret) + return ret; + + fill_balloon(vb, towards_target(vb)); + update_balloon_size(vb); + return 0; +} + static int virtballoon_thaw(struct virtio_device *vdev) { - return init_vqs(vdev->priv); + return restore_common(vdev); } static int virtballoon_restore(struct virtio_device *vdev) { struct virtio_balloon *vb = vdev->priv; - struct page *page, *page2; - - /* We're starting from a clean slate */ - vb->num_...

...qs(vdev); return 0; } +static int restore_common(struct virtio_device *vdev) +{ + struct virtio_balloon *vb = vdev->priv; + int ret; + + ret = init_vqs(vdev->priv); + if (ret) + return ret; + + fill_balloon(vb, towards_target(vb)); + update_balloon_size(vb); + return 0; +} + static int virtballoon_thaw(struct virtio_device *vdev) { - return init_vqs(vdev->priv); + return restore_common(vdev); } static int virtballoon_restore(struct virtio_device *vdev) { struct virtio_balloon *vb = vdev->priv; - struct page *page, *page2; - - /* We're starting from a clean slate */ - vb->num_...

Hi, These patches add support for S4 to virtio (pci) and all drivers. For each driver, all vqs are removed before hibernation, and then re-created after restore. Some driver-specific uninit and init work is also done in the freeze and restore functions. All the drivers in testing work fine: * virtio-blk is used for the only disk in the VM, IO works fine before and after. 'dd

Hi, These patches add support for S4 to virtio (pci) and all drivers. For each driver, all vqs are removed before hibernation, and then re-created after restore. Some driver-specific uninit and init work is also done in the freeze and restore functions. All the drivers in testing work fine: * virtio-blk is used for the only disk in the VM, IO works fine before and after. 'dd

Hi, These patches add support for S4 to virtio (pci) and all drivers. Michael saw some race in virtio-net module removal which will need a similar fix for the freeze code as well. I'll update the virtio-net patch with that fix once the fix is settled upon and applied. For each driver, all vqs are removed before hibernation, and then re-created after restore. Some driver-specific uninit

Hi, These patches add support for S4 to virtio (pci) and all drivers. Michael saw some race in virtio-net module removal which will need a similar fix for the freeze code as well. I'll update the virtio-net patch with that fix once the fix is settled upon and applied. For each driver, all vqs are removed before hibernation, and then re-created after restore. Some driver-specific uninit

Hi, These patches add support for S4 to virtio (pci) and all drivers. For each driver, all vqs are removed before hibernation, and then re-created after restore. Some driver-specific uninit and init work is also done in the freeze and restore functions. All the drivers in testing work fine: * virtio-blk is used for the only disk in the VM, IO works fine before and after. 'dd

Hi, These patches add support for S4 to virtio (pci) and all drivers. For each driver, all vqs are removed before hibernation, and then re-created after restore. Some driver-specific uninit and init work is also done in the freeze and restore functions. All the drivers in testing work fine: * virtio-blk is used for the only disk in the VM, IO works fine before and after. 'dd