MIRRORS/meta-virtualization
1
0
Fork 0
mirror of git://git.yoctoproject.org/meta-virtualization.git synced 2025-07-19 12:50:22 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

xen images, qemuboot: configure xenbr0 bridge for runqemu, testimage

Browse Source 
Networking for Xen guest virtual machines is commonly configured via
bridging in the host system between a physical interface and the
guest virtual interfaces.

To make it easier to test networking and use testimage with Xen guest
virtual machines, extend the bbclass that provides network configuration
for qemu machines for the Xen images to configure a Xen bridge and put
eth0 onto it when QB_XEN_HOST_BRIDGE is set.

Signed-off-by: Christopher Clark <christopher.clark@starlab.io>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
This commit is contained in:
Christopher Clark 2022-04-27 17:06:09 -07:00 committed by Bruce Ashfield
parent bf4f18a0b7
commit c988514f4a
2 changed files with 37 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
classes/qemuboot-testimage-network.bbclass
View File

@ -1,17 +1,51 @@
# The recipe for init-ifupdown in core has a special-case for all
# the Qemu MACHINES: it removes all external network interfaces
# by default. However, eth0 is needed for testimage, so enable it here.
# If QB_NETWORK_XEN_BRIDGE is set, configure bridging for the network.
QB_NETWORK_XEN_BRIDGE ??= ""
enable_runqemu_network() {
: # no-op for non-qemu MACHINES
}
enable_runqemu_network:qemuall() {
# Do not override a network configuration for eth0 if one is present
if ! grep -q eth0 "${IMAGE_ROOTFS}${sysconfdir}/network/interfaces" ; then
cat <<EOF >>${IMAGE_ROOTFS}${sysconfdir}/network/interfaces
# Xen host networking: use bridging to support guest networks
if [ -n "${QB_NETWORK_XEN_BRIDGE}" ] ; then
# Configure a Xen host network bridge and put eth0 on it
cat <<EOF >>${IMAGE_ROOTFS}${sysconfdir}/network/interfaces
# Bridged host network for Xen testimage
iface eth0 inet manual
auto xenbr0
iface xenbr0 inet dhcp
bridge_ports eth0
EOF
# Add a script to create the bridge and add eth0 if necessary
cat <<EOF >>${IMAGE_ROOTFS}${sysconfdir}/network/if-pre-up.d/xenbr0
#!/bin/sh
if [ "\$IFACE" = xenbr0 ]; then
brctl addbr xenbr0 || /bin/true
brctl addif xenbr0 eth0 || /bin/true
ifconfig eth0 up
fi
EOF
chmod 755 ${IMAGE_ROOTFS}${sysconfdir}/network/if-pre-up.d/xenbr0
else
# Just configure eth0
cat <<EOF >>${IMAGE_ROOTFS}${sysconfdir}/network/interfaces
# Network for testimage
auto eth0
iface eth0 inet dhcp
EOF
fi
fi
}
ROOTFS_POSTPROCESS_COMMAND += 'enable_runqemu_network;'

2
recipes-extended/images/xen-image-minimal.bb
View File

@ -34,6 +34,8 @@ XEN_ACPI_PROCESSOR_MODULE:x86-64 = "kernel-module-xen-acpi-processor"
LICENSE = "MIT"
QB_NETWORK_XEN_BRIDGE = "1"
inherit core-image
# Only inherit the qemuboot classes when building for a qemu machine
QB_QEMU_CLASSES = ""