On Wed, Aug 12, 2026 at 2:25 PM Ross Burton <[email protected]> wrote: > > On 10 Aug 2026, at 06:11, Alex Kiernan via lists.openembedded.org > <[email protected]> wrote: > > > > Add a QEMU machine for exercising an AArch32-only ARMv8-A target > > (Cortex-A32) under emulation, defaulting to the cortexa32-crypto tune. > > QEMU has no Cortex-A32 model, so it runs on the 'virt' machine with > > qemu-system-aarch64 using the Cortex-A32's AArch64-capable sibling, the > > Cortex-A35, with 'aarch64=off' so the guest is AArch32-only. This > > provides the ARMv8-A AArch32 feature set including the crypto extensions > > needed by the crypto tune, and the same binary supports KVM on AArch64 > > hosts whose CPUs implement AArch32 at EL1 via '-cpu host,aarch64=off'. > > The kernel is built as a zImage and u-boot uses qemu_arm_defconfig, > > matching the other 32-bit ARM QEMU machines. > > Whilst this is an interesting machine, I’m not sure I see a lot of value in > adding it to oe-core. You could easily maintain a tiny BSP layer to do this, > for example. > > If we’re adding this to core then we either need to support it (which means > someone needs to confirm that they’ll be maintaining it, we need to build it > on the autobuilder which means more resources are used on every build, and > build release artefacts for it), or explicitly say that it’s in the same tier > as qemuppc etc where someone commits to maintaining the BSP but it’s not > tested automatically and may well be broken. > > Personally, I feel that qemuppc/qemumips are in that second tier for > historical reasons, and if they were being added to core now I'd say to put > them in a separate layer. >
That's fair. Mostly it was having done the work to get the tune right (which is already in), it was having a way to demonstrate it without an actual board. But I agree without it hitting the AB matrix, it'll likely rot. Happy for it to be dropped. -- Alex Kiernan
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