Hello list, i've updated my host to kernel 4.19.43 and applied the following patch to my qemu 2.12.1: https://bugzilla.suse.com/attachment.cgi?id=798722
But my guest running 4.19.43 still says: Vulnerable: Clear CPU buffers attempted, no microcode; SMT Host state unknown while the host says: Vulnerable: Clear CPU buffers attempted, SMT Host state unknown I expected the guest can use the new microcode. Greets, Stefan