This series adds support for the virtio 1.0 "emergency write"
(VIRTIO_CONSOLE_F_EMERG_WRITE) virtio feature. This is useful for
early guest debugging and might be used in cases where the guest
crashes so badly that it cannot use virtqueues.
v1→v2:
- rebased on current master (resolved conflict: virtio-pci
page-per-vq compat property)
- split into two patches; no code changes (requested by Amit)
Sascha Silbe (2):
virtio-serial: add plumbing for virtio console emergency write support
virtio-serial: enable virtio console emergency write feature
hw/char/virtio-serial-bus.c | 49 ++++++++++++++++++++++++++++++++++++---
include/hw/compat.h | 5 ++++
include/hw/virtio/virtio-serial.h | 2 ++
3 files changed, 53 insertions(+), 3 deletions(-)
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1.9.1
