Stephan Gerhold e0c2ce8217 virtio_mmio: Restore guest page size on resume ...

Virtio devices might lose their state when the VMM is restarted
after a suspend to disk (hibernation) cycle. This means that the
guest page size register must be restored for the virtio_mmio legacy
interface, since otherwise the virtio queues are not functional.

This is particularly problematic for QEMU that currently still defaults
to using the legacy interface for virtio_mmio. Write the guest page
size register again in virtio_mmio_restore() to make legacy virtio_mmio
devices work correctly after hibernation.

Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Message-Id: <20220621110621.3638025-3-stephan.gerhold@kernkonzept.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

2022-06-27 08:05:35 -04:00

..

Kconfig

virtio: disable notification hardening by default

2022-06-24 02:49:48 -04:00

Makefile

virtio-pci: introduce legacy device module

2021-11-01 04:30:34 -04:00

virtio_balloon.c

virtio: Replace unsigned with unsigned int

2022-05-31 12:45:09 -04:00

virtio_dma_buf.c

dma-buf: move dma-buf symbols into the DMA_BUF module namespace

2021-10-25 14:53:08 +02:00

virtio_input.c

virtio: wrap config->reset calls

2022-01-14 18:50:52 -05:00

virtio_mem.c

drivers: virtio_mem: use pageblock size as the minimum virtio_mem size.

2022-05-13 07:20:13 -07:00

virtio_mmio.c

virtio_mmio: Restore guest page size on resume

2022-06-27 08:05:35 -04:00

virtio_pci_common.c

virtio: Replace unsigned with unsigned int

2022-05-31 12:45:09 -04:00

virtio_pci_common.h

virtio: Replace unsigned with unsigned int

2022-05-31 12:45:09 -04:00

virtio_pci_legacy_dev.c

virtio/virtio_pci_legacy_dev: ensure the correct return value

2022-01-14 18:50:53 -05:00

virtio_pci_legacy.c

virtio-pci: implement synchronize_cbs()

2022-05-31 12:45:09 -04:00

virtio_pci_modern_dev.c

virtio: Remove unnecessary variable assignments

2022-06-24 02:49:48 -04:00

virtio_pci_modern.c

virtio-pci: implement synchronize_cbs()

2022-05-31 12:45:09 -04:00

virtio_ring.c

virtio: disable notification hardening by default

2022-06-24 02:49:48 -04:00

virtio_vdpa.c

virtio: Replace unsigned with unsigned int

2022-05-31 12:45:09 -04:00

virtio.c

virtio: disable notification hardening by default

2022-06-24 02:49:48 -04:00