*Hello I am trying to enable libvirt to support sev-snp. Currently I am using virsh domcapabilities to check if its enabled but I am getting : <sev supported='no'/>*
*Followed the instructions at : * *https://libvirt.org/kbase/launch_security_sev.html* <https://libvirt.org/kbase/launch_security_sev.html> * My AMD CPU supports SEV,SEV-SNP and I have followed all the steps and it is enabled. BIOS settings are configured to support SEV,SNP CPU: AMD EPYC 9254* *# cat /sys/module/kvm_amd/parameters/sev* *Y* *# dmesg | grep -i sev* *[ 0.000000] SEV-SNP: RMP table physical range [0x000000002d500000 - 0x000000004ddfffff]* *[ 0.009021] SEV-SNP: Reserving start/end of RMP table on a 2MB boundary [0x000000002d400000]* *[ 11.184492] ccp 0000:01:00.5: sev enabled* *[ 12.664210] ccp 0000:01:00.5: SEV API:1.55 build:36* *[ 12.664217] ccp 0000:01:00.5: SEV-SNP API:1.55 build:36* *[ 12.671343] kvm_amd: SEV enabled (ASIDs 16 - 1006)* *[ 12.671345] kvm_amd: SEV-ES enabled (ASIDs 1 - 15)* *[ 12.671346] kvm_amd: SEV-SNP enabled (ASIDs 1 - 15)* My guess is that my qemu binary does not support sev cpu feature. I am trying to add it using: #qemu-system-x86_64 -cpu host,+sev But the output is the following. qemu-system-x86_64: Property 'host-x86_64-cpu.sev' not found Do you have any insights on this? *Versions:* *Libvirt version: 10.7.0* *qemu-system-x86_64 version : 9.1.0* *Linux kernel version: 6.11.0-rc3* *Distro: Ubuntu 22.04.4 LTS* * If you need any other information please let me know.* Thanks!
