Re: x86: AMD Zen2 ymm registers rolling back

[Alexander Monakov]

On Tue, 28 Feb 2023, Borislav Petkov wrote:

> On Tue, Feb 28, 2023 at 10:24:40PM +0300, Alexander Monakov wrote:
> > No, on the contrary, if there were no updates I would not be able to
> > see microcode version increase after updating.
> 
> So what are you saying then?

That I can reproduce the bug even with the latest BIOS, i.e. the microcode
in the latest BIOS update does not have the fix, and the linux-firmware.git
microcode does not have a patch for this CPU family at all.

Hence the question how to get fixed microcode for this CPU family.

Alexander