Hi Sherry, Dne 5.6.2018 v 16:27 Hurwitz, Sherry napsal(a): > Hi Rudolf, I have been investigating the status with the AMD release > management, but I have not been given approval to publish any other > microcode. I have been trying to track down why there might be a > version in the wild that I have not been given for public publishing. > It might have come from a BIOS update and not a OS microcode load but
Yes exactly. Why this exists? Is there some technical restriction that will prevent microcode loading just in Linux? I think it would be beneficial to have at least the IBPB protection in place via microcode updates. > I don't have the definitive details on that either. I will publish > whatever is released to me as soon as possible. Any news on this? The family 15h microcode revision provided for Linux is 0x06001119 but I know that 0x0600111f exists, which provides the IBPB. Btw I also think that Family 17h (0x00800F11) Linux microcode update has a same problem. It does not include IBPB support right? It is included in the "BIOS" only microcode revision 0x08001137. Thanks, Rudolf
