mirror of
https://git.yoctoproject.org/poky
synced 2026-04-19 15:32:13 +02:00
2f6a47c4d4
Emulating more than one network interface with runqemu is a bit tricky,
but possible. For example, the following leads to an emulated device with
eth0 and eth1:
QB_NETWORK_DEVICE_prepend = " \
-device virtio-net-device,mac=52:54:00:12:34:03 \
"
or
QB_NETWORK_DEVICE_append = " \
-device virtio-net-pci,mac=52:54:00:12:34:03 \
"
When booting Qemu with two NICs, the kernel does not know which
interface the specified ip=192.168.7.... command line argument
should be applied. This delays the boot process for a very long
time and a guest wihtout IP configuration.
This add two new configuraton parameters to runqemu:
QB_CMDLINE_IP_SLIRP and QB_CMDLINE_IP_TAP to explicitely specify the ip=
kernel command line arguments for tap and slirp mode.
Note: Simply adding "::eth0" broke some builds on the Yocto autobuilder.
(From OE-Core rev: 59bfdc331c1494c05ab38804b281878a1f571f6d)
Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
QEMU Emulation Targets ====================== To simplify development, the build system supports building images to work with the QEMU emulator in system emulation mode. Several architectures are currently supported in 32 and 64 bit variants: * ARM (qemuarm + qemuarm64) * x86 (qemux86 + qemux86-64) * PowerPC (qemuppc only) * MIPS (qemumips + qemumips64) Use of the QEMU images is covered in the Yocto Project Reference Manual. The appropriate MACHINE variable value corresponding to the target is given in brackets.