Re: [PATCH 00/17] KVM: PPC: In-kernel MPIC support with irqfd v3

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On Fri, Apr 19, 2013 at 04:06:11PM +0200, Alexander Graf wrote:
> Hi,
> 
> This patch set contains a fully working implementation of the in-kernel MPIC
> from Scott with a few fixups and a new version of my irqfd generalization
> patch set.

For patches 1-8:
Acked-by: Michael S. Tsirkin <mst@xxxxxxxxxx>

I don't have an opinion about the rest.

> v1 -> v2:
> 
>   - depend on CONFIG_ defines rather than __KVM defines
>   - fix compile issues
>   - fix the kvm_irqchip{,s} typo
> 
> v2 -> v3:
> 
>   - make mpic pointer type safe
>   - add wmb before setting global mpic variable
>   - make eoi notification happen unlockedly
>   - add IRQ routing documentation
>   - announce mpic availability after its creation
>   - fix pr_debug again
> 
> I have refrained from touching IA64 at all in this patch set. It's marked
> as BROKEN, I doubt it even compiles at all today. The only sensible thing
> to do would be to remove all of IA64 kvm code from the kernel tree, but
> that is out of scope for this patch set and definitely should not gate it.
> 
> 
> Alex
> 
> Alexander Graf (11):
>   KVM: Add KVM_IRQCHIP_NUM_PINS in addition to KVM_IOAPIC_NUM_PINS
>   KVM: Introduce CONFIG_HAVE_KVM_IRQ_ROUTING
>   KVM: Drop __KVM_HAVE_IOAPIC condition on irq routing
>   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
>   KVM: PPC: Support irq routing and irqfd for in-kernel MPIC
>   KVM: PPC: MPIC: Add support for KVM_IRQ_LINE
>   KVM: PPC: MPIC: Restrict to e500 platforms
> 
> Scott Wood (6):
>   kvm: add device control API
>   kvm/ppc/mpic: import hw/openpic.c from QEMU
>   kvm/ppc/mpic: remove some obviously unneeded code
>   kvm/ppc/mpic: adapt to kernel style and environment
>   kvm/ppc/mpic: in-kernel MPIC emulation
>   kvm/ppc/mpic: add KVM_CAP_IRQ_MPIC
> 
>  Documentation/virtual/kvm/api.txt          |   78 ++
>  Documentation/virtual/kvm/devices/README   |    1 +
>  Documentation/virtual/kvm/devices/mpic.txt |   48 +
>  arch/powerpc/include/asm/kvm_host.h        |   24 +-
>  arch/powerpc/include/asm/kvm_ppc.h         |   30 +
>  arch/powerpc/include/uapi/asm/kvm.h        |    9 +
>  arch/powerpc/kvm/Kconfig                   |   12 +
>  arch/powerpc/kvm/Makefile                  |    3 +
>  arch/powerpc/kvm/booke.c                   |   12 +-
>  arch/powerpc/kvm/irq.h                     |   17 +
>  arch/powerpc/kvm/mpic.c                    | 1876 ++++++++++++++++++++++++++++
>  arch/powerpc/kvm/powerpc.c                 |   55 +-
>  arch/x86/include/asm/kvm_host.h            |    2 +
>  arch/x86/kvm/Kconfig                       |    1 +
>  arch/x86/kvm/Makefile                      |    2 +-
>  arch/x86/kvm/x86.c                         |    1 -
>  include/linux/kvm_host.h                   |   53 +-
>  include/trace/events/kvm.h                 |   12 +-
>  include/uapi/linux/kvm.h                   |   33 +-
>  virt/kvm/Kconfig                           |    3 +
>  virt/kvm/assigned-dev.c                    |   30 -
>  virt/kvm/eventfd.c                         |    6 +-
>  virt/kvm/irq_comm.c                        |  194 +---
>  virt/kvm/irqchip.c                         |  237 ++++
>  virt/kvm/kvm_main.c                        |  170 +++-
>  25 files changed, 2659 insertions(+), 250 deletions(-)
>  create mode 100644 Documentation/virtual/kvm/devices/README
>  create mode 100644 Documentation/virtual/kvm/devices/mpic.txt
>  create mode 100644 arch/powerpc/kvm/irq.h
>  create mode 100644 arch/powerpc/kvm/mpic.c
>  create mode 100644 virt/kvm/irqchip.c
> 
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