On 2/14/25 10:24, Paraskevas Nik wrote: > Hello, > I am trying to build libvirt v10.5.0 to support SEV-SNP but when I run > virsh domcapabilities I am getting <sev support=no>. If I install > libvirt 8.0.0 using apt install libvirt-daemon-system qemu-kvm them sev > shows as supported. Everything is enabled on the system about SEV, SEV- > ES, SEV-SNP. Is there a specific build option to enable SEV? > > *# cat /sys/module/kvm_amd/parameters/sev* > > *Y* > > ** > > ***CPU: AMD EPYC 9254* > > * > * > > *# 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) > > **Linux kernel version: 6.12 > **Libvirt version: 10.5.0* > > *qemu-system-x86_64 version : 9.1.0*** > > * > * > > *If you need any other information please let me know. > > Cheers* >
Hi, are you running the daemon as root? Also - if you start the daemon from git, there's the "run" script that executes the daemon with correct selinux label. Also, there's 'virt-host-validate' tool that should check sev support and print info about it. Michal
