Re: [PATCH 0/7] KVM: irqfd generalization prepare patch set

[Gleb Natapov <gleb@redhat.com>]

On Tue, Apr 16, 2013 at 07:26:08PM +0200, Alexander Graf wrote:
> The concept of an irqfd and interrupt routing are nothing particularly tied
> into the IOAPIC implementation. In fact, most of the code already is perfectly
> generic.
> 
> This patch set decouples most bits of the existing irqchip and irqfd
> implementation to make it reusable for non-IOAPIC platforms, like the PPC MPIC.
> 
> I also have a patch that implements working irqfd support on top of these,
> but that requires the in-kernel MPIC implementation to go upstream first, so
> I'm holding off on it until we settled everything there, so the concept
> certainly does work.
> 
> Alex
> 
Nice cleanup, thanks! Should expect a new series with "ifdef
kvm_irqchip" and ia64 compilation fixed. The fixes are minor enough for
me to fix them while applying.

> Alexander Graf (7):
>   KVM: Add KVM_IRQCHIP_NUM_PINS in addition to KVM_IOAPIC_NUM_PINS
>   KVM: Introduce __KVM_HAVE_IRQCHIP
>   KVM: Remove kvm_get_intr_delivery_bitmask
>   KVM: Move irq routing to generic code
>   KVM: Extract generic irqchip logic into irqchip.c
>   KVM: Move irq routing setup to irqchip.c
>   KVM: Move irqfd resample cap handling to generic code
> 
>  arch/x86/include/asm/kvm_host.h |    2 +
>  arch/x86/include/uapi/asm/kvm.h |    1 +
>  arch/x86/kvm/Makefile           |    2 +-
>  arch/x86/kvm/x86.c              |    1 -
>  include/linux/kvm_host.h        |   14 +--
>  include/trace/events/kvm.h      |   12 ++-
>  include/uapi/linux/kvm.h        |    2 +-
>  virt/kvm/assigned-dev.c         |   30 -----
>  virt/kvm/eventfd.c              |    6 +-
>  virt/kvm/irq_comm.c             |  193 +-------------------------------
>  virt/kvm/irqchip.c              |  237 +++++++++++++++++++++++++++++++++++++++
>  virt/kvm/kvm_main.c             |   33 ++++++
>  12 files changed, 297 insertions(+), 236 deletions(-)
>  create mode 100644 virt/kvm/irqchip.c

--
			Gleb.