I played around more with the uefi options and (by sheer luck and
intuition) found how to fix this! :-)
In `Advanced->AMD CBS->NBIO Common Options` set `IOMMU = Enabled` (it
was disabled by default!)
Now SME works fine with Bios Options TSME=Enabled, Scramble=Enabled.
** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
** Changed in: linux (Ubuntu)
Status: Invalid => Fix Released
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https://bugs.launchpad.net/bugs/1879538
Title:
System freeze when booting with mem_encrypt=on
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