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Patch "x86/hyperv: Make vapic support x2apic mode" has been added to the 4.19-stable tree

DISCUSSION Michael Kelley 2 participants 2 messages Oct 27, 2019 1 message not in the archive Stable branch

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Michael Kelley

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#1 lore raw

From: [email protected] <[email protected]>

Quoted 22 lines

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 <[email protected]> know about it.

From e211288b72f15259da86eed6eca680758dbe9e74 Mon Sep 17 00:00:00 2001
From: Roman Kagan <[email protected]>
Date: Thu, 10 Oct 2019 12:33:05 +0000
Subject: x86/hyperv: Make vapic support x2apic mode

Quoted 7 lines

From: Roman Kagan <[email protected]>

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

maintainer
#2 lore raw
Quoted 27 lines · Michael Kelley

From: [email protected] <[email protected]>

Quoted 26 lines

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 <[email protected]> know about it.

From e211288b72f15259da86eed6eca680758dbe9e74 Mon Sep 17 00:00:00 2001
From: Roman Kagan <[email protected]>
Date: Thu, 10 Oct 2019 12:33:05 +0000
Subject: x86/hyperv: Make vapic support x2apic mode

From: Roman Kagan <[email protected]>

commit e211288b72f15259da86eed6eca680758dbe9e74 upstream.

Quoted 7 lines
Quoted 3 lines

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