On Tuesday, December 1, 2015 at 1:09:06 PM UTC-5, Eric Shelton wrote:
> Marek,
> Just a heads up that I think I sorted out what needs to happen for Skylake 
> to work with Qubes:
> https://groups.google.com/d/msg/qubes-users/UXP8RJffpsY/k15G1txyAgAJ
> Summary: (1) a linux command line option is required, and (2) i915 
> requires firmware blobs for Skylake, which need to be included in initramfs.
> Also, although not necessary to get things running, attached is a recent 
> patch from xen-devel to get Xen's mwait-idle working for Skylake, in case 
> you want to make use of it.
> Best,
> Eric
After doing a fresh install of Qubes 3.2 on a Skylake system, I noticed 
that 'xl dmesg' was reporting "mwait-idle: does not run on family 6 model 
94".  As I mentioned above, a patch is available to address this.  Since 
then, the above patch was committed to xen.git 

There are also commits for mwait-idle updates to Kaby Lake 
(1008063e1cd15257875b9db18eede710077adea5) and Skylake Xeon 

While you are at it, you might want to pull in a couple of subsequent 
Skylake-related commits: 5a211704e8813c4890c8ce8dc4189d1dfb35ecd0 
("mwait-idle: prevent SKL-H boot failure when C8+C9+C10 enabled") 
and 372ad59dd0e7a3df0bd46ec3c8b934d739eb07b5 ("mwait-idle: add a missing 
__init annotation").

There is another Skylake-related commit unrelated to mwait-idle 
(c52319642bb9069436d4aec75361049f5fac63ed), but I don't know if this is 
actually likely to cause any issues.


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