* RE: Patch "x86/hyperv: Make vapic support x2apic mode" has been added to the 4.19-stable tree
[not found] <15721920637928@kroah.com>
@ 2019-10-27 17:35 ` Michael Kelley
2019-10-27 17:45 ` gregkh
0 siblings, 1 reply; 2+ messages in thread
From: Michael Kelley @ 2019-10-27 17:35 UTC (permalink / raw)
To: gregkh, 20191010123258.16919-1-rkagan, rkagan, tglx, vkuznets, stable
Cc: stable-commits
From: gregkh@linuxfoundation.org <gregkh@linuxfoundation.org>
>
> This is a note to let you know that I've just added the patch titled
>
> x86/hyperv: Make vapic support x2apic mode
>
> to the 4.19-stable tree which can be found at:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git
>
> The filename of the patch is:
> x86-hyperv-make-vapic-support-x2apic-mode.patch
> and it can be found in the queue-4.19 subdirectory.
>
> If you, or anyone else, feels it should not be added to the stable tree,
> please let <stable@vger.kernel.org> know about it.
>
>
> From e211288b72f15259da86eed6eca680758dbe9e74 Mon Sep 17 00:00:00 2001
> From: Roman Kagan <rkagan@virtuozzo.com>
> Date: Thu, 10 Oct 2019 12:33:05 +0000
> Subject: x86/hyperv: Make vapic support x2apic mode
>
> From: Roman Kagan <rkagan@virtuozzo.com>
>
> commit e211288b72f15259da86eed6eca680758dbe9e74 upstream.
>
> Now that there's Hyper-V IOMMU driver, Linux can switch to x2apic mode
> when supported by the vcpus.
>
This patch should not go back to the 4.19 stable tree. I don't think it will
break anything, but there's no Hyper-V vIOMMU driver in 4.19 so
x2apic_enabled() is never true.
Michael
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Patch "x86/hyperv: Make vapic support x2apic mode" has been added to the 4.19-stable tree
2019-10-27 17:35 ` Patch "x86/hyperv: Make vapic support x2apic mode" has been added to the 4.19-stable tree Michael Kelley
@ 2019-10-27 17:45 ` gregkh
0 siblings, 0 replies; 2+ messages in thread
From: gregkh @ 2019-10-27 17:45 UTC (permalink / raw)
To: Michael Kelley
Cc: 20191010123258.16919-1-rkagan, rkagan, tglx, vkuznets, stable,
stable-commits
On Sun, Oct 27, 2019 at 05:35:00PM +0000, Michael Kelley wrote:
> From: gregkh@linuxfoundation.org <gregkh@linuxfoundation.org>
> >
> > This is a note to let you know that I've just added the patch titled
> >
> > x86/hyperv: Make vapic support x2apic mode
> >
> > to the 4.19-stable tree which can be found at:
> >
> > https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git
> >
> > The filename of the patch is:
> > x86-hyperv-make-vapic-support-x2apic-mode.patch
> > and it can be found in the queue-4.19 subdirectory.
> >
> > If you, or anyone else, feels it should not be added to the stable tree,
> > please let <stable@vger.kernel.org> know about it.
> >
> >
> > From e211288b72f15259da86eed6eca680758dbe9e74 Mon Sep 17 00:00:00 2001
> > From: Roman Kagan <rkagan@virtuozzo.com>
> > Date: Thu, 10 Oct 2019 12:33:05 +0000
> > Subject: x86/hyperv: Make vapic support x2apic mode
> >
> > From: Roman Kagan <rkagan@virtuozzo.com>
> >
> > commit e211288b72f15259da86eed6eca680758dbe9e74 upstream.
> >
> > Now that there's Hyper-V IOMMU driver, Linux can switch to x2apic mode
> > when supported by the vcpus.
> >
>
> This patch should not go back to the 4.19 stable tree. I don't think it will
> break anything, but there's no Hyper-V vIOMMU driver in 4.19 so
> x2apic_enabled() is never true.
Thanks for letting me know, now dropped.
greg k-h
^ permalink raw reply [flat|nested] 2+ messages in thread
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2019-10-27 17:35 ` Patch "x86/hyperv: Make vapic support x2apic mode" has been added to the 4.19-stable tree Michael Kelley
2019-10-27 17:45 ` gregkh
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