[PATCH v8 00/11] ACPI/IORT: Support for IORT RMR node

[Shameerali Kolothum Thodi]

> -----Original Message-----
> From: Eric Auger [mailto:eric.auger at redhat.com]
> Sent: 11 March 2022 08:07
> To: Shameerali Kolothum Thodi <shameerali.kolothum.thodi at huawei.com>;
> linux-arm-kernel at lists.infradead.org; linux-acpi at vger.kernel.org;
> iommu at lists.linux-foundation.org
> Cc: Linuxarm <linuxarm at huawei.com>; lorenzo.pieralisi at arm.com;
> joro at 8bytes.org; robin.murphy at arm.com; will at kernel.org; wanghuiqiang
> <wanghuiqiang at huawei.com>; Guohanjun (Hanjun Guo)
> <guohanjun at huawei.com>; steven.price at arm.com; Sami.Mujawar at arm.com;
> jon at solid-run.com; yangyicong <yangyicong at huawei.com>
> Subject: Re: [PATCH v8 00/11] ACPI/IORT: Support for IORT RMR node
> 
> Hi Shameer,
> 
> On 2/21/22 4:43 PM, Shameer Kolothum wrote:
> > Hi,
> >
> > Since we now have an updated verion[0] of IORT spec(E.d) which
> > addresses the memory attributes issues discussed here [1],
> > this series now make use of it.
> >
> > The pull request for ACPICA E.d related changes are already
> > raised and can be found here,
> > https://github.com/acpica/acpica/pull/752
> >
> > v7 --> v8
> >   - Patch #1 has temp definitions for RMR related changes till
> >     the ACPICA header changes are part of kernel.
> >   - No early parsing of RMR node info and is only parsed at the
> >     time of use.
> >   - Changes to the RMR get/put API format compared to the
> >     previous version.
> >   - Support for RMR descriptor shared by multiple stream IDs.
> 
> I tested it on guest side for host MSI SW RESV region flat mapping
> (using both the old single mapping layout and the now allowed multiple
> RID ID mapping format) and this worked for me. Feel free to add my
> 
> Tested-by: Eric Auger <eric.auger at redhat.com>

Thanks Eric for verifying this, especially the multiple RID mapping case.

Cheers,
Shameer