[pve-devel] cpuflag: pcid needed in guest for good performance after meltdown

[Michael Rasmussen]

On Mon, 8 Jan 2018 21:34:57 +0100
Stefan Priebe - Profihost AG <s.priebe at profihost.ag> wrote:

> Hello,
> 
> for meltdown mitigation and performance it's important to have the pcid
> flag passed down to the guest (f.e.
> https://groups.google.com/forum/m/#!topic/mechanical-sympathy/L9mHTbeQLNU).
> 
As I understand it it is only required given the guest also uses a
kernel that take advantage of this feature and which is, for Linux,
a kernel 4.14 post Meltdown fix?

-- 
Hilsen/Regards
Michael Rasmussen

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