x86 PAT fixes for stable

x86 PAT fixes for stable

[Kani, Toshimitsu]

Hello,

The following patches fix two x86 PAT issues reported in 4.4 [1][2]. Can
you please backport them up to 4.4? 

1/7 x86/mm/pat: Add support of non-default PAT MSR setting
02f037d641dc6672be5cfe7875a48ab99b95b154

2/7 x86/mm/pat: Add pat_disable() interfacecommit
224bb1e5d67ba0f2872c98002d6a6f991ac6fd4a

3/7 x86/mm/pat: Replace cpu_has_pat with boot_cpu_has
d63dcf49cf5ae5605f4d14229e3888e104f294b1

4/7 x86/mtrr: Fix Xorg crashes in Qemu sessions
edfe63ec97ed8d4496225f7ba54c9ce4207c5431

5/7 x86/mtrr: Fix PAT init handling when MTRR is disabled
ad025a73f0e9344ac73ffe1b74c184033e08e7d5

6/7 x86/xen,pat: Remove PAT table init code from Xen
88ba281108ed0c25c9d292b48bd3f272fcb90dd0

7/7 x86/pat: Document PAT initialization
b6350c21cfe8aa9d65e189509a23c0ea4b8362c2

1/1 x86/mm/pat: Fix BUG_ON in mmap_mem on QEMU/i386
1886297ce0c8d563a08c8a8c4c0b97743e06cd37

Thanks,
-Toshi
 
[1] https://lkml.org/lkml/2016/3/3/828
[2] http://www.gossamer-threads.com/lists/xen/devel/432189?page=last
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Re: x86 PAT fixes for stable

[Ingo Molnar]

* Kani, Toshimitsu <toshi.kani@hpe.com> wrote:

> Hello,
> 
> The following patches fix two x86 PAT issues reported in 4.4 [1][2]. Can
> you please backport them up to 4.4? 

Do they apply, build and boot cleanly in that order on top of v4.4, v4.5 and v4.6? 
If yes then:

  Acked-by: Ingo Molnar <mingo@kernel.org>

Thanks,

	Ingo

Re: x86 PAT fixes for stable

[Ed Swierk]

On Tue, May 24, 2016 at 11:29 PM, Ingo Molnar <mingo@kernel.org> wrote:
> Do they apply, build and boot cleanly in that order on top of v4.4, v4.5 and v4.6?
> If yes then:
>
>   Acked-by: Ingo Molnar <mingo@kernel.org>

I confirm that they do so on top of v4.4.

Acked-by: Ed Swierk <eswierk@skyportsystems.com>

Re: x86 PAT fixes for stable

[Ed Swierk]

...along with https://git.kernel.org/cgit/linux/kernel/git/xen/tip.git/commit/?id=702f9260
which should also go into v4.4, IMO.


On Wed, May 25, 2016 at 4:17 AM, Ed Swierk <eswierk@skyportsystems.com> wrote:
> On Tue, May 24, 2016 at 11:29 PM, Ingo Molnar <mingo@kernel.org> wrote:
>> Do they apply, build and boot cleanly in that order on top of v4.4, v4.5 and v4.6?
>> If yes then:
>>
>>   Acked-by: Ingo Molnar <mingo@kernel.org>
>
> I confirm that they do so on top of v4.4.
>
> Acked-by: Ed Swierk <eswierk@skyportsystems.com>

Re: x86 PAT fixes for stable

[Greg KH]

On Wed, May 25, 2016 at 08:29:39AM +0200, Ingo Molnar wrote:
> 
> * Kani, Toshimitsu <toshi.kani@hpe.com> wrote:
> 
> > Hello,
> > 
> > The following patches fix two x86 PAT issues reported in 4.4 [1][2]. Can
> > you please backport them up to 4.4? 
> 
> Do they apply, build and boot cleanly in that order on top of v4.4, v4.5 and v4.6? 
> If yes then:
> 
>   Acked-by: Ingo Molnar <mingo@kernel.org>

All now queued up, thanks.

greg k-h