According to the following advisory[1] from HP, this is a known issue which is fixed upstream :
"Advisory: Red Hat Enterprise Linux 8.3 - Guest Stops Responding at efi_mokvar_sysfs_init+0xa9/0x19d with AMD Secure Encrypted Virtualization (SEV) Enabled"
The upstream fix cited in the article is the following :
According to the following advisory[1] from HP, this is a known issue which is fixed upstream :
"Advisory: Red Hat Enterprise Linux 8.3 - Guest Stops Responding at efi_mokvar_ sysfs_init+ 0xa9/0x19d with AMD Secure Encrypted Virtualization (SEV) Enabled"
The upstream fix cited in the article is the following :
https:/ /git.kernel. org/pub/ scm/linux/ kernel/ git/torvalds/ linux.git/ commit/ ?id=8d651ee9c71 bb12fc0c8eb2786 b66cbe5aa3e43b
x86/ioremap: Map EFI-reserved memory as encrypted for SEV
Adding this commit on top of kernel 5.4.0-92.103 does fix the booting issue.
[1] https:/ /support. hpe.com/ hpesc/public/ docDisplay? docId=a00119071 en_us&docLocale =en_US