On Fri, 2025-10-24 at 16:51 +0200, David Hildenbrand wrote: > On 24.10.25 16:47, David Woodhouse wrote: > > On Thu, 2025-10-23 at 22:06 +0200, David Hildenbrand wrote: > > > On 15.10.25 10:27, Kevin Brodsky wrote: > > > > We currently set a TIF flag when scheduling out a task that is in > > > > lazy MMU mode, in order to restore it when the task is scheduled > > > > again. > > > > > > > > The generic lazy_mmu layer now tracks whether a task is in lazy MMU > > > > mode in task_struct::lazy_mmu_state. We can therefore check that > > > > state when switching to the new task, instead of using a separate > > > > TIF flag. > > > > > > > > Signed-off-by: Kevin Brodsky <[email protected]> > > > > --- > > > > > > > > > Looks ok to me, but I hope we get some confirmation from x86 / xen > > > folks. > > > > > > I know tglx has shouted at me in the past for precisely this reminder, > > but you know you can test Xen guests under QEMU/KVM now and don't need > > to actually run Xen? Has this been boot tested? > > And after that, boot-testing sparc as well? :D
Also not that hard in QEMU, I believe. Although I do have some SPARC boxes in the shed...
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