Private bug reported:
On Dell PowerEdge system when SEV-SNP feature is enabled in BIOS,
observed sev command timeout issues as indicated in the following dmesg
logs.
sh:~# dmesg | grep -i sev^*
0.000000] SEV-SNP: RMP table physical range [0x00000142d7c00000 -
0x000001441befffff]
0.004646] SEV-SNP: Reserving start/end of RMP table on a 2MB boundary
[0x000001441be00000]
8.054384] ccp 0000:85:00.5: sev enabled
8.104329] ccp 0001:81:00.5: sev enabled
13.169884] ccp 0001:81:00.5: sev command 0x4 timed out, disabling PSP
[ 13.169934] ccp 0001:81:00.5: SEV: failed to get status. Error: 0x0
[ 13.196165] kvm_amd: SEV enabled (ASIDs 100 - 1006)
[ 13.196168] kvm_amd: SEV-ES enabled (ASIDs 1 - 99)
[ 13.196170] kvm_amd: SEV-SNP enabled (ASIDs 1 - 99)
The above issue was got resolved in the following upstream patch.
https://lore.kernel.org/lkml/9cb3a054c95327fe26de41419dd23c914f141614.1737155147.git.thomas.lenda...@amd.com/
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Information type changed from Public to Private
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https://bugs.launchpad.net/bugs/2114826
Title:
[Ubuntu 24.04.2] Observed AMD SEV-SNP Error Messages in Ubuntu dmesg
When SEV-SNP Feature is Enabled in BIOS
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