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[Qemu-devel] Re: [PATCH 8/8] ahci: fix !msi interrupts
From: |
Alexander Graf |
Subject: |
[Qemu-devel] Re: [PATCH 8/8] ahci: fix !msi interrupts |
Date: |
Mon, 17 Jan 2011 17:00:57 +0100 |
User-agent: |
Thunderbird 2.0.0.23 (X11/20090817) |
Jan Kiszka wrote:
> On 2010-12-20 22:13, Alexander Graf wrote:
>
>> When not using MSI, receiving an interrupt while the interrupt line is active
>> pulses the interrupt line. Without this, guests don't realize that a new
>> interrupt occured.
>>
>
> This doesn't look OK. The device model should look at the currently used
> mode and switch between edge and level triggering accordingly. As it
> appears like this is what it already does, this change may just paper
> over the real issue.
>
Well, I have this internal abstraction to make edge and level triggered
interrupt triggering easier. irq_lower is a simple nop for the edge case.
Alex
- [Qemu-devel] Re: [PATCH 8/8] ahci: fix !msi interrupts, Jan Kiszka, 2011/01/17
- [Qemu-devel] Re: [PATCH 8/8] ahci: fix !msi interrupts,
Alexander Graf <=
- [Qemu-devel] Re: [PATCH 8/8] ahci: fix !msi interrupts, Jan Kiszka, 2011/01/17
- [Qemu-devel] Re: [PATCH 8/8] ahci: fix !msi interrupts, Alexander Graf, 2011/01/17
- [Qemu-devel] Re: [PATCH 8/8] ahci: fix !msi interrupts, Jan Kiszka, 2011/01/17
- [Qemu-devel] Re: [PATCH 8/8] ahci: fix !msi interrupts, Alexander Graf, 2011/01/17
- [Qemu-devel] Re: [PATCH 8/8] ahci: fix !msi interrupts, Jan Kiszka, 2011/01/17
- [Qemu-devel] Re: [PATCH 8/8] ahci: fix !msi interrupts, Alexander Graf, 2011/01/17
- [Qemu-devel] Re: [PATCH 8/8] ahci: fix !msi interrupts, Gerd Hoffmann, 2011/01/18
- [Qemu-devel] Re: [PATCH 8/8] ahci: fix !msi interrupts, Alexander Graf, 2011/01/18
- [Qemu-devel] Re: [PATCH 8/8] ahci: fix !msi interrupts, Jan Kiszka, 2011/01/18
- Re: [Qemu-devel] Re: [PATCH 8/8] ahci: fix !msi interrupts, Aurelien Jarno, 2011/01/22