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Date:      Tue, 18 Oct 2022 18:33:38 +0000
From:      Souradeep Chakrabarti <schakrabarti@microsoft.com>
To:        Warner Losh <imp@bsdimp.com>
Cc:        "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>, Wei Hu <weh@microsoft.com>
Subject:   RE: allocating IRQ mentioned in _CRS of ACPI
Message-ID:  <PSAP153MB053688DD7E9B60CE5AEB17A6CC289@PSAP153MB0536.APCP153.PROD.OUTLOOK.COM>
In-Reply-To: <PSAP153MB053698CAD8CB5439C99355B4CC249@PSAP153MB0536.APCP153.PROD.OUTLOOK.COM>
References:  <PSAP153MB053667A618629ACFFDCEDCBFCC249@PSAP153MB0536.APCP153.PROD.OUTLOOK.COM> <PSAP153MB053698CAD8CB5439C99355B4CC249@PSAP153MB0536.APCP153.PROD.OUTLOOK.COM>

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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
>=20
> Last mail was having incorrect FreeBSD hacker alias. Replacing that with =
correct
> one here.
>=20
>=20
> > -----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



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