linux/poky.git/meta/classes-recipe/qemuboot.bbclass, branch master

The poky repository master branch is no longer being updated.

2025-11-07T13:31:53+00:00

You can either: a) switch to individual clones of bitbake, openembedded-core, meta-yocto and yocto-docs b) use the new bitbake-setup You can find information about either approach in our documentation: https://docs.yoctoproject.org/ Note that "poky" the distro setting is still available in meta-yocto as before and we continue to use and maintain that. Long live Poky! Some further information on the background of this change can be found in: https://lists.openembedded.org/g/openembedded-architecture/message/2179 Signed-off-by: Richard Purdie

bitbake/conf: Default to zstd compressed image output

2025-08-06T21:32:42+00:00

Switch our default qemu images to use .zst compressed images by default since this is the output format we release during the release process and is the one that users would prefer to download. This makes the release process use the actual generated output from the system and avoids post processing. (From OE-Core rev: aa5f60d1fcb716a2b2174dffcaf35442bff1f1fb) Signed-off-by: Richard Purdie

qemuboot: Trigger write_qemuboot_conf task on changes of kernel image realpath

2024-07-04T21:56:15+00:00

The qemuboot.conf file contains the realpath of the kernel image referenced by QB_DEFAULT_KERNEL. So, it must be recreated in case the realpath of the referenced kernel image changes. The variables KERNEL_IMAGE_NAME and KERNEL_IMAGE_BIN_EXT determine the realpath of the kernel image relative to DEPLOY_DIR_IMAGE. Adding both of them to the vardeps of the write_qemuboot_conf task triggers the write_qemuboot_conf task in case the realpath of the kernel image referenced by QB_DEFAULT_KERNEL changes. Fixes: [YOCTO 15525] (From OE-Core rev: f8b3975a9ce36ea7af5fd76243a823da2842415b) Signed-off-by: "Weisser, Pascal" Signed-off-by: Richard Purdie

classes/qemuboot: add depends on qemu-system-native and qemu-helper-native

2024-03-25T13:01:14+00:00

Any image that inherits qemuboot must also add image dependencies on qemu-system-native and qemu-helper-native, otherwise the image won't be able to be booted. Currently this is done by conf/machine/include/qemu.inc, but not every machine that uses qemuboot includes that file. Move the EXTRA_IMAGEDEPENDS from qemu.inc into qemuboot.bbclass, so that the dependencies don't have to be duplicated. (From OE-Core rev: dd54cf058f632e985917ff227483995f368e6a7d) Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

qemuboot: predictable network interface names

2024-02-21T22:20:10+00:00

Allow interface renaming if 'pni-names' is a distro feature. We do not add QB_NO_PNI to QB_CMDLINE_IP_SLIRP because renaming was never suppressed for slirp. (From OE-Core rev: d8d92ad46273a4e305f690f2820a475e4d7f6701) Signed-off-by: Joe Slater Signed-off-by: Richard Purdie

qemuboot.bbclass: fix typos in documentation

2023-10-23T09:49:19+00:00

comand -> command docuemntation -> documentation (From OE-Core rev: 302228fb858384a7ef4e46ecae80d1ebbc00f1a7) Signed-off-by: Marcus Folkesson Signed-off-by: Alexandre Belloni Signed-off-by: Richard Purdie

qemuboot: reduce default size of software I/O translation buffer

2023-10-09T14:51:13+00:00

With 6.5+ (specifically, if DMA_BOUNCE_UNALIGNED_KMALLOC is set) the SWIOTLB is used, and it defaults to 64MB. This is too much when there's only 256MB of RAM, so request 0 slabs and lets the kernel round up to the appropriate minimum (1MB on aarch64, typically). In virtual hardware there's very little need for these bounce buffers, so the 64MB would be mostly wasted. (From OE-Core rev: 369e768d87b80be9efe76937bfafeddabc35f559) Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

qemuboot: Update hardcoded path to match new layout

2023-08-11T12:22:01+00:00

Obviously this code is horrible and shouldn't hardcode it. Update it to match the WORKDIR change to drop PE/PR for now. (From OE-Core rev: 05095c116602d1a8c388cc02afffcc36230138f7) Signed-off-by: Richard Purdie

qemuboot/runqemu: Fix 6.2 and later kernel network device naming

2023-08-09T12:22:00+00:00

With kernel 6.2 and later network devices are renamed by systemd. This does not match with the current network device naming assumed in our configuration. We may or may not change that naming but for now, pass the right kernel commandline so things work as expected with newer kernels and removing a blocker on upgrading to the 6.4 kernel by default. (From OE-Core rev: 9e9c33d51e401fe2b4a632db74ccb3449e4b23ee) Signed-off-by: Richard Purdie

qemuboot.bbclass: add QB_NFSROOTFS_EXTRA_OPT for nfs rootfs extra option

2023-01-26T22:22:53+00:00

This extra options to be appended to the nfs rootfs options in kernel boot arg. (From OE-Core rev: a255a7f350b558445f4f6c29f60e77c33883b08a) Signed-off-by: Xiangyu Chen Signed-off-by: Luca Ceresoli Signed-off-by: Richard Purdie