What were you trying to do that didn't work?
Fail to enable SEV-SNP on AMD Turin processors
Package:
qemu-kvm-9.1.0-5.el9.src.rpm
5.14.0-539.el9.x86_64
edk2-ovmf-20241117-1.el9.src.rpm
How reproducible is this bug?:
100%
Steps to reproduce
1. enable SEV-SNP in BIOS
upload the screenshot of BIOS settings
2.check dmesg
[root@lenovo-sr675v3-01 ~]# dmesg | grep -i sev [ 0.000000] SEV-SNP: RMP table physical range [0x0000018214400000 - 0x0000018397efffff] [ 0.011434] SEV-SNP: Reserving start/end of RMP table on a 2MB boundary [0x0000018397e00000] [ 24.115039] ccp 0000:54:00.5: sev enabled [ 24.115988] ccp 0000:d1:00.5: sev enabled [ 29.904085] ccp 0000:54:00.5: SEV-SNP: failed to INIT rc -5, error 0x13 [ 30.059205] ccp 0000:54:00.5: SEV: failed to INIT error 0x1, rc -5 [ 30.059215] ccp 0000:54:00.5: SEV API:1.55 build:44 [ 33.998828] kvm_amd: SEV enabled (ASIDs 10 - 1006) [ 33.998831] kvm_amd: SEV-ES enabled (ASIDs 1 - 9) [ 33.998832] kvm_amd: SEV-SNP enabled (ASIDs 1 - 9)
Expected results
sev-snp init successfullt
Actual results
sev-snp failed to init
Additional info
[root@lenovo-sr675v3-01 ~]# snphost ok [ PASS ] - AMD CPU [ PASS ] - Microcode support [ PASS ] - Secure Memory Encryption (SME) [ PASS ] - SME: Enabled in MSR [ PASS ] - Secure Encrypted Virtualization (SEV) [ PASS ] - Encrypted State (SEV-ES) [ FAIL ] - SEV-ES INIT: Disabled [ FAIL ] - SEV INIT: SEV is UNINIT [ PASS ] - Secure Nested Paging (SEV-SNP) [ PASS ] - VM Permission Levels [ PASS ] - Number of VMPLs: 4 [ PASS ] - SNP: Enabled in MSR [ PASS ] - SEV Firmware Version: Sev firmware version: 1.55 [ FAIL ] - SNP INIT: Failed to get SNP Platform status unable to retrieve SNP platform status [ PASS ] - Physical address bit reduction: 6 [ PASS ] - C-bit location: 51 [ PASS ] - Number of encrypted guests supported simultaneously: 1006 [ PASS ] - Minimum ASID value for SEV-enabled, SEV-ES disabled guest: 10 [ PASS ] - Reading /dev/sev: /dev/sev readable [ PASS ] - Writing /dev/sev: /dev/sev writable [ PASS ] - Page flush MSR: DISABLED [ PASS ] - KVM supported: API version: 12 [ PASS ] - SEV enabled in KVM: enabled [ PASS ] - SEV-ES enabled in KVM: enabled [ PASS ] - SEV-SNP enabled in KVM: enabled [ PASS ] - Memlock resource limit: Soft: 8388608 | Hard: 8388608 [ PASS ] - RMP table addresses: Addresses: 1658197114880 - 1664701431807 [ FAIL ] - RMP INIT: Failed to get SNP Platform status unable to retrieve SNP platform status [ FAIL ] - Comparing TCB values: Failed to get SNP Platform status unable to retrieve SNP platform status
- clones
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RHEL-71497 [RHEL9.6]Fail to init SEV-SNP on AMD Turin processors
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