Re: [PATCH 0/6] IRQFD without IRQ routing, enabled for XICS

[Cornelia Huck <cornelia.huck@de.ibm.com>]

On Mon, 30 Jun 2014 20:51:08 +1000
Paul Mackerras <paulus@samba.org> wrote:

> I would like to see this go into 3.17.

FWIW: I've given this a whirl on s390 (with a dataplane disk), and
everything seems to work as before.

The only thing which is I think worth mentioning is that embedding the
routing entry into the irqfd struct will grow it a bit, which might be
noticable on large installations with hundreds of devices. OTOH, the
routing entry isn't too large, so I don't think it will become a
problem.

> 
>  arch/ia64/kvm/Kconfig                |   1 +
>  arch/powerpc/kvm/Kconfig             |   3 +
>  arch/powerpc/kvm/book3s_hv_rm_xics.c |   5 ++
>  arch/powerpc/kvm/book3s_xics.c       |  55 +++++++++++---
>  arch/powerpc/kvm/book3s_xics.h       |   2 +
>  arch/powerpc/kvm/mpic.c              |   4 +-
>  arch/s390/kvm/Kconfig                |   1 +
>  arch/s390/kvm/interrupt.c            |   3 +-
>  arch/x86/kvm/Kconfig                 |   1 +
>  include/linux/kvm_host.h             |  43 ++++-------
>  virt/kvm/Kconfig                     |   3 +
>  virt/kvm/eventfd.c                   | 134 ++++++++++++++++++++++++++---------
>  virt/kvm/irq_comm.c                  |  24 +++----
>  virt/kvm/irqchip.c                   |  98 ++++++++++---------------
>  virt/kvm/kvm_main.c                  |   2 +-
>  15 files changed, 227 insertions(+), 152 deletions(-)