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From: Daniel Black <daniel@linux.ibm.com>
To: Keith Busch <keith.busch@intel.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Len Brown <lenb@kernel.org>,
	"open list:ACPI" <linux-acpi@vger.kernel.org>,
	open list <linux-kernel@vger.kernel.org>,
	Tao Xu <tao3.xu@intel.com>
Subject: Re: [PATCH] acpi/hmat: ACPI_HMAT_MEMORY_PD_VALID is deprecated in ACPI-6.3
Date: Tue, 3 Sep 2019 11:03:45 +1000	[thread overview]
Message-ID: <20190903110345.4ee753c3@volution.ozlabs.ibm.com> (raw)
In-Reply-To: <CAJZ5v0jXiuA3HGPCY3vbH8_53WP-6G=bVJ8SPprCDDg9MoyAsQ@mail.gmail.com>

On Mon, 2 Sep 2019 23:28:50 +0200
"Rafael J. Wysocki" <rafael@kernel.org> wrote:

> On Tue, Aug 6, 2019 at 6:24 AM Daniel Black <daniel@linux.ibm.com> wrote:
> >
> > ACPI-6.3 corresponds to when hmat revision was bumped from
> > 1 to 2. In this version ACPI_HMAT_MEMORY_PD_VALID was
> > deprecated and made reserved.
> >
> > As such in revision 2+ we shouldn't be testing this flag.
> >
> > This is as per ACPI-6.3, 5.2.27.3, Table 5-145
> > "Memory Proximity Domain Attributes Structure"
> > for Flags.
> >
> > Signed-off-by: Daniel Black <daniel@linux.ibm.com>  
> 
> Keith, any comments?

FYI this was found when I was testing Tao Xu's qemu implementation of HMAT ACPI-6.3 which has no implementation of  ACPI_HMAT_MEMORY_PD_VALID.

Current patch implementing Memory Proximity Domain Attributes Structure:
https://patchwork.kernel.org/patch/11125301/


  reply	other threads:[~2019-09-03  1:04 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-06  4:24 [PATCH] acpi/hmat: ACPI_HMAT_MEMORY_PD_VALID is deprecated in ACPI-6.3 Daniel Black
2019-08-12  8:03 ` Tao Xu
2019-09-02 21:28 ` Rafael J. Wysocki
2019-09-03  1:03   ` Daniel Black [this message]
2019-10-02  0:25     ` Daniel Black
2019-10-10 22:20 ` Rafael J. Wysocki

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