Hi,

>>> 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?
>
> Sorry typo. s/acpi/apic/.

The attached patch gives me:

msi_notify:243 intel-hda:30 notify vector 0x0 address: 0xfee01008 data: 
0x4151
apic_send_msi:775 dest 1 vector 81 dest_mode 0 trigger_mode 0 delivery 1
apic_find_dest:443 no apic found for dest 1

cheers,
   Gerd