My test setup is now Debian Buster with qemu-system-arm 3.1 and a host with KVM-enabled Kernel 4.9.61 on Odroid XU4.
Following results: -------- qemu-system-arm -M vexpress-a15 -smp 2 -m 512 -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 -enable-kvm Still not working as above, so it doesn't seem to be fixed for 3.1. -------- qemu-system-arm -M vexpress-a15,secure=off -smp 2 -m 512 -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 -enable-kvm No errors but no output at all, can switch to qemu monitor, but don't know if system is running -------- Option 1 and Option 2 both start the Debian installer as expected WITHOUT the parameter -enable-kvm I did also tests with the virt board as recommended. With the parameter -enable-kvm none of the different virt-* boards did output anything to the console, without KVM the virt-boards did start. virt-2.6 and virt-2.7 did boot into the installer without KVM. Any more recent version (2.8, 2.9, 2.10, 3.0 and 3.1) returned "Unable to handle kernel paging request at virtual address 0109ed30" (address is changing) during the init process. With different guest memory sizes the paging error occurred at a different init step. Conclusion: 1) EL3 feature does still seem to be enabled in qemu 3.1 (Debian) even for KVM-enabled guests. 2) Any recommendation for a support forum to discuss my trouble with the missing console output when enabling KVM and the paging problems with the recent virt boards outside this bug report? -- 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
