Re: [Xen-devel] CPU flags disappear on Spectre enabled host

[Olaf Hering <olaf@xxxxxxxxx>]

Am Fri, 20 Jul 2018 10:38:30 +0100
schrieb Andrew Cooper <andrew.cooper3@xxxxxxxxxx>:

> On 20/07/18 10:21, Olaf Hering wrote:
> > Is the loss of cpuflags intentional?  
> Yes, but they've got nothing to do with Spectre.

Thank you, Andrew. After a few more reboots I figured that booting without any 
cmdline option makes no difference.

From the original report that I got, these additional flags disappeared:

cqm_llc
cqm_occup_llc
pln
pts

I assume a domU can not make use of them either? They are not listed in CPUID 
in wikipedia, perhaps just not with those names.

Olaf

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