Hello all,
In this series I've removed the buffering that happened in the host
and ack the amount of data that ports actually consume. This basically
removes the older patch 5/8 that introduced buffering and throttling.
Other changes include addition of patch 8: MSI support and ensuring we
don't crash in the event we don't have chardevs opened and guest
writes out to virtio-consoles.
Obligatory disclaimer:
This series splits up the patches by functionality. Note, however,
that patches 2-5 introduce some functionality that's advertised to the
guest as having to work all at once or not at all. Also, the savevm
version is bumped only once but save/restore state is added in each of
the patches. They are split only for easier reviewability.
The older virtio-console.c file is completely removed and a new
virtio-serial.c is introduced so that reviewing is easier. I can send a
later patch to rename virtio-serial.c back to virtio-console.c.
Amit Shah (8):
virtio: Remove duplicate macro definition for max. virtqueues, bump
up the max
virtio-console: qdev conversion, new virtio-serial-bus
virtio-serial-bus: Maintain guest and host port open/close state
virtio-serial-bus: Add a port 'name' property for port discovery in
guests
virtio-serial-bus: Add ability to hot-unplug ports
virtio-serial: Add a 'virtserialport' device for generic serial port
support
Move virtio-serial to Makefile.objs
virtio-serial: Use MSI vectors for port virtqueues
Makefile.objs | 2 +-
Makefile.target | 2 +-
hw/pc.c | 11 +-
hw/ppc440_bamboo.c | 7 -
hw/qdev.c | 10 +-
hw/s390-virtio-bus.c | 17 +-
hw/s390-virtio-bus.h | 2 +
hw/s390-virtio.c | 8 -
hw/virtio-console.c | 143 -----------
hw/virtio-console.h | 19 --
hw/virtio-pci.c | 17 +-
hw/virtio-serial-bus.c | 620 ++++++++++++++++++++++++++++++++++++++++++++++++
hw/virtio-serial.c | 146 ++++++++++++
hw/virtio-serial.h | 173 ++++++++++++++
hw/virtio.c | 2 -
hw/virtio.h | 4 +-
qemu-options.hx | 4 +
sysemu.h | 6 -
vl.c | 2 +
19 files changed, 978 insertions(+), 217 deletions(-)
delete mode 100644 hw/virtio-console.c
delete mode 100644 hw/virtio-console.h
create mode 100644 hw/virtio-serial-bus.c
create mode 100644 hw/virtio-serial.c
create mode 100644 hw/virtio-serial.h
