Messages in this thread | | | Subject | Re: [PATCH 1/1] Update AMD cpu microcode for family 15h | From | Rudolf Marek <> | Date | Sat, 1 Sep 2018 17:46:24 +0200 |
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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
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