14452 2021-06-25 14:54:26 +0000 qemuarm64 (and likely others) don't boot in kvmtool 2026-05-28 14:29:51 +0000 1 1 7 Build System, Metadata & Runtime OE-Core kernel 3.4 x86 Multiple ACCEPTED Medium enhancement 6.1 M2 1 ross.burton bruce.ashfield randy.macleod tom.zanussi --- --- No (bug/feature does not impact docs) oldest_to_newest 90764 0 ross.burton 2021-06-25 14:54:26 +0000 Some people like to use lkvm instead of qemu, but our qemu kernels don't boot: $ ~/Code/kvmtool/lkvm run --disk core-image-sato-qemuarm64.ext4 --kernel Image --debug -c 4 -m 128 # lkvm run -k Image -m 128 -c 4 --name guest-2181167 Info: (arm/kvm.c) kvm__arch_load_kernel_image:116: Loaded kernel to 0x80000000 (19505664 bytes) Info: (arm/kvm.c) kvm__arch_load_kernel_image:132: Placing fdt at 0x87e00000 - 0x87ffffff Info: (virtio/mmio.c) virtio_mmio_init:325: virtio-mmio.devices=0x200@0x3000000:36 Info: (virtio/mmio.c) virtio_mmio_init:325: virtio-mmio.devices=0x200@0x3000200:37 Warning: IP header length is not 20 bytes Warning: IP header length is not 20 bytes And then it hangs. I'm told that there are differences: "for the background: QEMU and kvmtool use a different virtual platform: they share the usage of virtio, but the memory map is different, and QEMU uses a PL011, while kvmtool emulates an 8250 UART. And there are other differences, but nothing exotic, so defconfig easily covers both" https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/tree/README lists most of the config options that kvmtool expects to work.