I can boot a KVM guest (either with the debian stretch qemu-system-arm 2.8.1, or with a head-of-upstream-git QEMU), which wouldn't work with EL3 enabled, so I'm not sure what is going wrong for you. To try to debug this further you'd need to build QEMU from source and start running it under the debugger to see what exactly is going on and why it's hitting that assertion.
I would be tempted to try a newer kernel to see if that helped. (My working setup is using the debian stretch stock "4.9.0-0.bpo.9-armmp- lpae #1 SMP Debian 4.9.168-1+deb9u3~deb8u1 (2019-06-17)", but in general 4.9 is fairly elderly now.) For forums to talk about this kind of thing you might also try the qemu- arm mailing list (https://lists.nongnu.org/mailman/listinfo/qemu-arm) or qemu-devel itself (generally best to cc qemu-devel on qemu-arm emails anyway, lots of people don't subscribe to the per-architecture lists). -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1836501 Title: cpu_address_space_init fails with assertion Status in QEMU: Confirmed Bug description: qemu-system-arm does not start with version >= 2.6 and KVM enabled. cpu_address_space_init: Assertion `asidx == 0 || !kvm_enabled()' failed. Hardware is Odroid XU4 with Exynos with 4.9.61+ Tested with Debian Stretch (9) or Buster (10). Without KVM it is running fine but slow. I'm operating Debian Jessie with qemu 2.1 for a long time with KVM virtualization working flawlessly. When I upgraded to Stretch I ran into the trouble described before. I tried Debian Stretch and Buster with all Kernels provided by the Board manufacturer (Hardkernel). It seems to be related to the feature introduced in Version 2.6: https://wiki.qemu.org/ChangeLog/2.6 - Support for a separate EL3 address space KVM is enabled, so I assume the adress space index asidx to be causing the assert to fail. dmesg | grep -i KVM [ 0.741714] kvm [1]: 8-bit VMID [ 0.741721] kvm [1]: IDMAP page: 40201000 [ 0.741729] kvm [1]: HYP VA range: c0000000:ffffffff [ 0.742543] kvm [1]: Hyp mode initialized successfully [ 0.742600] kvm [1]: vgic-v2@10484000 [ 0.742924] kvm [1]: vgic interrupt IRQ16 [ 0.742943] kvm [1]: virtual timer IRQ60 Full command line is: qemu-system-arm -M vexpress-a15 -smp 2 -m 512 -cpu host -enable-kvm -kernel vmlinuz -initrd initrd.gz -dtb vexpress-v2p-ca15-tc1.dtb -device virtio-blk-device,drive=inst-blk -drive file=PATHTOFILE,id=inst-blk,if=none,format=raw -append "vga=normal rw console=ttyAMA0" -nographic Is there anything to do to understand, if this is a hardware related failure or probably just a missing parameter? Regards Lutz To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1836501/+subscriptions
