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
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)
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!
