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

Fri, 11 Mar 2022 05:24:14 -0800 


> -----Original Message-----
> From: Eric Auger [mailto:[email protected]]
> Sent: 11 March 2022 08:07
> To: Shameerali Kolothum Thodi <[email protected]>;
> [email protected]; [email protected];
> [email protected]
> Cc: Linuxarm <[email protected]>; [email protected];
> [email protected]; [email protected]; [email protected]; wanghuiqiang
> <[email protected]>; Guohanjun (Hanjun Guo)
> <[email protected]>; [email protected]; [email protected];
> [email protected]; yangyicong <[email protected]>
> 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 <[email protected]>

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

Cheers,
Shameer
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