RE: allocating IRQ mentioned in _CRS of ACPI

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