[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 0/3] Notify devices when a bus is attached
From: |
Jesse Larrew |
Subject: |
[Qemu-devel] [PATCH 0/3] Notify devices when a bus is attached |
Date: |
Tue, 4 Jun 2013 11:22:42 -0500 |
The virtio-net driver can determine the required size of the config struct
dynamically by inspecting the feature bits in host_features. The natural
place to perform this calculation is within the driver's init routine.
However, host_features isn't set until later when the device is plugged
into a bus.
VirtioBusClass includes a callback method, device_plugged(), that allows
the bus to perform additional setup tasks when a device is plugged into the
bus. This patch set similarly extends VirtioDeviceClass to add a callback,
bus_plugged(), to allow devices the same setup opportunity.
This allows virtio-net to defer the config size calculation until
host_features is available, which I think will be a better long-term fix to
the problem addressed in e9016ee2bda1b7757072b856b2196f691aee3388.
[PATCH 1/3] virtio: add bus_plugged() callback to VirtioDeviceClass
[PATCH 2/3] virtio-net: implement bus_plugged()
[PATCH 3/3] virtio-net: revert MAC address workaround
hw/net/virtio-net.c | 20 +++++++++++++++++++-
hw/virtio/virtio.c | 3 +++
include/hw/virtio/virtio.h | 1 +
3 files changed, 23 insertions(+), 1 deletion(-)