On Fri, 31 Oct 2014 13:38:18 +0000 Eric Auger <eric.au...@linaro.org> wrote:
> Compute kvm_irqfds_allowed by checking the KVM_CAP_IRQFD extension. > Remove direct settings in architecture specific files. > > Add a new kvm_resamplefds_allowed variable, initialized by > checking the KVM_CAP_IRQFD_RESAMPLE extension. Add a corresponding > kvm_resamplefds_enabled() function. > > A special notice for s390 where KVM_CAP_IRQFD was not immediatly > advirtised when irqfd capability was introduced in the kernel. s/immediatly advirtised/immediately advertised/ > KVM_CAP_IRQ_ROUTING was advertised instead. > > This was fixed in "KVM: s390: announce irqfd capability", > ebc3226202d5956a5963185222982d435378b899 whereas irqfd support > was brought in 84223598778ba08041f4297fda485df83414d57e, > "KVM: s390: irq routing for adapter interrupts". Both commits > first appear in 3.15 so there should not be any kernel > version impacted by this QEMU modification. Yes, I think we can live with disabling irqfd support for those versions inbetween :) > > Signed-off-by: Eric Auger <eric.au...@linaro.org> The patch looks sane to me and I verified that qemu works as expected on s390 (current kernel, current kernel with KVM_CAP_IRQFD disabled again and pre-KVM_CAP_IRQ_ROUTING). So: Reviewed-by: Cornelia Huck <cornelia.h...@de.ibm.com> Tested-by: Cornelia Huck <cornelia.h...@de.ibm.com>
