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+
+cpu_address_space_init fails with assertion
+
+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
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