From: gregkh@xxxxxxxxxxxxxxxxxxx <gregkh@xxxxxxxxxxxxxxxxxxx> > > 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@xxxxxxxxxxxxxxx> know about it. > > > From e211288b72f15259da86eed6eca680758dbe9e74 Mon Sep 17 00:00:00 2001 > From: Roman Kagan <rkagan@xxxxxxxxxxxxx> > Date: Thu, 10 Oct 2019 12:33:05 +0000 > Subject: x86/hyperv: Make vapic support x2apic mode > > From: Roman Kagan <rkagan@xxxxxxxxxxxxx> > > 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
