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Date: Wed, 03 Nov 2010 13:40:59 +0100
From: Gerd Hoffmann <kraxel@redhat.com>
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Subject: Re: [Qemu-devel] MSI broken?
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	<20101103123446.GB26077@valinux.co.jp>
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To: Isaku Yamahata <yamahata@valinux.co.jp>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

On 11/03/10 13:34, Isaku Yamahata wrote:
> On Wed, Nov 03, 2010 at 12:03:15PM +0100, Gerd Hoffmann wrote:
>>   Hi,
>>
>> What is the status if the recently merged MSI support?
>>
>> I'm trying to use it to add msi support to the intel-hda driver (current
>> wip patch attached).  Everything works fine up to the point where it
>> comes to delivering the interrupt to the guest.  msi_notify pretends to
>> signal the guest:
>>
>> msi_notify:243 intel-hda:30 notify vector 0x0 address: 0xfee01008 data:
>> 0x4151
>>
>> The guest never ever receives this interrupt though:
>>
>> [root@localhost ~]# grep hda /proc/interrupts
>>   43:          0   PCI-MSI-edge      hda_intel
>>
>> Ideas anyone?
>
> Let's track it down futher.
> Were acpi_mem_writel() and apic_send_msi() in hw/apic.c called or not?

No such function in my tree (savannah/master).

Looks like some bits needed for msi are not merged yet?

cheers,
   Gerd