On Mon, Dec 02, 2024 at 08:54:11AM +0000, Steven Price wrote: > Hi Itaru, > > On 02/12/2024 05:10, Itaru Kitayama wrote: > > On Fri, Oct 04, 2024 at 04:27:21PM +0100, Steven Price wrote: > >> This series adds support for running protected VMs using KVM under the > >> Arm Confidential Compute Architecture (CCA). > ... > > > > On FVP, the v5+v7 kernel is unable to execute virt-manager: > > > > Starting install... > > Allocating 'test9.qcow2' | 0 B 00:00 ... > > Removing disk 'test9.qcow2' | 0 B 00:00 > > ERROR internal error: process exited while connecting to monitor: 2024-12-04T18:56:11.646168Z qemu-system-aarch64: -accel kvm: ioctl(KVM_CREATE_VM) failed: Invalid argument > > 2024-12-04T18:56:11.646520Z qemu-system-aarch64: -accel kvm: failed to initialize kvm: Invalid argument > > Domain installation does not appear to have been successful. > > Can you check that the kernel has detected the RMM being available, you > should have a message like below when the host kernel is booting: > > kvm [1]: RMI ABI version 1.0 > > My guess is that you've got mismatched versions of the RMM and TF-A. The > interface between those two components isn't stable and there were > breaking changes fairly recently. And obviously if the RMM hasn't > initialised successfully then confidential VMs won't be available. > > > Below is my virt-manager options: > > > > virt-install --machine=virt --arch=aarch64 --name=test9 --memory=2048 --vcpu=1 --nographic --check all=off --features acpi=off --virt-type kvm --boot kernel=Image-cca,initrd=rootfs.cpio,kernel_args='earlycon console=ttyAMA0 rdinit=/sbin/init rw root=/dev/vda acpi=off' --qemu-commandline='-M virt,confidential-guest-support=rme0,gic-version=3 -cpu host -object rme-guest,id=rme0 -nodefaults' --disk size=4 --import --osinfo detect=on,require=off > > > > Userland is Ubuntu 24.10, the VMM is Linaro's cca/2024-11-20: > > > > https://git.codelinaro.org/linaro/dcap/qemu/-/tree/cca/2024-11-20?ref_type=heads Indeed, QEMU branch 2024-11-20 has to be used with an older version of the KVM patch and older RMM. For KVM v5+v7 you need the most recent QEMU branch, confusingly called cca/v3 (because it's the third patch series). Thanks, Jean > > I don't think this is the latest QEMU tree, Jean-Philippe posted an > update last week: > > https://lore.kernel.org/qemu-devel/20241125195626.856992-2-jean-philippe@xxxxxxxxxx/ > > I'm not sure if there were any important updates there, but there are > detailed instructions that might help. > > Regards, > Steve >
