Re: [PATCH] x86/tlb: Flush global mappings when KAISER is disabled

Sasha Levin
2021-03-25T20:37:53Z

On Thu, Mar 25, 2021 at 09:09:42PM +0100, Borislav Petkov wrote:
>Hi stable folks,
>
>the patch below fixes kernels 4.4 and 4.9 booting on AMD platforms with
>PCID support. It doesn't have an upstream counterpart because it patches
>the KAISER code which didn't go upstream. It applies fine to both of the
>aforementioned kernels - please pick it up.

Queued up for 4.9 and 4.4, thanks!

>Jim Mattson reported that Debian 9 guests using a 4.9-stable kernel
>are exploding during alternatives patching:

(Cc Ben & Salvatore)

I'm not sure if 4.9 or Debian is still alive or not, but FYI...

--
Thanks,
Sasha