Re: allocating IRQ mentioned in _CRS of ACPI

Sorry for the late reply... I've been busy with some things for work...

I think you'll need to get the parent of vmbus to allow a pass through
allocation. What bus is that
currently?

Warner

On Tue, Oct 18, 2022 at 12:33 PM Souradeep Chakrabarti <
schakrabarti@microsoft.com> wrote:

> Hi,
> It will be a great help, if someone can help here with some idea.
> As it is blocking the FreeBSD on Hyper-V ARM64.
>
> Thanks & Regards,
> Souradeep
>
> > -----Original Message-----
> > From: Souradeep Chakrabarti
> > Sent: Friday, October 14, 2022 1:24 PM
> > To: 'Warner Losh' <imp@bsdimp.com>
> > Cc: freebsd-hackers@freebsd.org; Wei Hu <weh@microsoft.com>
> > Subject: RE: allocating IRQ mentioned in _CRS of ACPI
> >
> > Last mail was having incorrect FreeBSD hacker alias. Replacing that with
> correct
> > one here.
> >
> >
> > > -----Original Message-----
> > > From: Souradeep Chakrabarti
> > > Sent: Friday, October 14, 2022 1:19 PM
> > > To: Warner Losh <imp@bsdimp.com>
> > > Cc: hacker@freebsd.org; Wei Hu <weh@microsoft.com>
> > > Subject: allocating IRQ mentioned in _CRS of ACPI
> > >
> > > Hi,
> > > I would like to allocate IRQ to a device, mentioned in the _CRS of
> > > that device in ACPI table.
> > > I have tried with bus_alloc_resource_any(), but it is failing as the
> > > parent of that device is not owning the IRQ.
> > >
> > > Current ACPI topo for the device :
> > > ACPI0->SB.VMOD(HID ACPI0004, has SYS_RES_MEM for MMIO in _CRS)-
> > > >VMBUS( it has SYS_RES_IRQ in it's _CRS).
> > >
> > > How can I get here both SYS_RES_IRQ and SYS_RES_MEM allocated to VMBUS?
> > >
> > > Thanks & Regards,
> > > Souradeep
>