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Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inje
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inject_async_irq |
Date: |
Wed, 25 Jul 2012 16:55:29 +0100 |
On 25 July 2012 16:47, Avi Kivity <address@hidden> wrote:
> On 07/25/2012 04:24 PM, Peter Maydell wrote:
>> -int kvm_irqchip_set_irq(KVMState *s, int irq, int level);
>> +int kvm_inject_async_irq(KVMState *s, int irq, int level);
> "interrupt injection" refers to the act of setting up an interrupt to be
> delivered to the guest at the next entry, so it is synchronous by
> nature. It was sloppy of me to use the term, but let's not introduce it
> to the code as well.
Ah. I'd assumed it just meant "inject this into the kernel".
(ie the point at which the interrupt is no longer qemu's problem :-))
> The correct terminology would be:
> interrupt injection: synchronous, in-vcpu, after all masks have been
> evaluated. Straight into the vein.
> interrupt queueing: asynchronous, extra-vcpu, before any masks
>
> Since interrupt queueing (well that name isn't perfect for level
> triggered interrupts, since it may not queue anything...) is the norm, I
> think it's better to keep the set_irq() naming and mark the synchronous
> interrupt injection function as special.
So just call this 'kvm_set_irq()' ?
-- PMM
- Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inject_async_irq, (continued)
- Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inject_async_irq, Jan Kiszka, 2012/07/25
- Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inject_async_irq, Peter Maydell, 2012/07/25
- Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inject_async_irq, Jan Kiszka, 2012/07/25
- Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inject_async_irq, Peter Maydell, 2012/07/25
- Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inject_async_irq, Peter Maydell, 2012/07/25
- Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inject_async_irq, Jan Kiszka, 2012/07/25
- Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inject_async_irq, Avi Kivity, 2012/07/25
- Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inject_async_irq, Peter Maydell, 2012/07/25
- Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inject_async_irq, Jan Kiszka, 2012/07/25
- Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inject_async_irq, Avi Kivity, 2012/07/25
- Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inject_async_irq,
Peter Maydell <=
- Re: [Qemu-devel] [PATCH 2/6] kvm: Rename kvm_irqchip_set_irq to kvm_inject_async_irq, Avi Kivity, 2012/07/25
[Qemu-devel] [PATCH 6/6] kvm: Add documentation comment for kvm_irqchip_in_kernel(), Peter Maydell, 2012/07/25
[Qemu-devel] [PATCH 5/6] kvm: Don't assume irqchip implies MSI routing via irqfds, Peter Maydell, 2012/07/25
[Qemu-devel] [PATCH 4/6] kvm: Don't assume irqchip-in-kernel implies irqfds, Peter Maydell, 2012/07/25