From: "Moore, Robert" <robert.moore@intel.com>
To: Thomas Renninger <trenn@suse.de>
Cc: "x86@kernel.org" <x86@kernel.org>,
"ck@conrad-kostecki.de" <ck@conrad-kostecki.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"mingo@redhat.com" <mingo@redhat.com>,
"hpa@zytor.com" <hpa@zytor.com>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"devel@acpica.org" <devel@acpica.org>
Subject: RE: [Devel] ACPI: Also allow ACPI table adding via initrd not only overriding
Date: Tue, 18 Feb 2014 19:59:17 +0000 [thread overview]
Message-ID: <94F2FBAB4432B54E8AACC7DFDE6C92E37C7D78A7@ORSMSX103.amr.corp.intel.com> (raw)
In-Reply-To: <139301482.3RWgg14omZ@skinner>
Maybe not exactly "running", but at the very least, ACPICA must be initialized.
All of this of course depends on how early the table needs to be loaded.
> -----Original Message-----
> From: Thomas Renninger [mailto:trenn@suse.de]
> Sent: Tuesday, February 18, 2014 10:53 AM
> To: Moore, Robert
> Cc: x86@kernel.org; ck@conrad-kostecki.de; linux-kernel@vger.kernel.org;
> mingo@redhat.com; hpa@zytor.com; tglx@linutronix.de; devel@acpica.org
> Subject: Re: [Devel] ACPI: Also allow ACPI table adding via initrd not
> only overriding
>
> On Tuesday, February 18, 2014 06:38:45 PM Moore, Robert wrote:
> > acpi_load_table won't work?
>
> I guess not, there is:
> /* Must acquire the interpreter lock during this operation */
> status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
>
> So the interpreter must be running already?
> That would mean the adding can only happen much later.
> This probably would eleminate most use cases for adding arbitrary ACPI
> tables. Most tables (beside DSDT and SSDT) are needed really early,
> otherwise the info could have been added as AML as well.
>
> Thomas
>
> > > -----Original Message-----
> > > From: Devel [mailto:devel-bounces@acpica.org] On Behalf Of Thomas
> > > Renninger
> > > Sent: Tuesday, February 18, 2014 10:23 AM
> > > Cc: x86@kernel.org; ck@conrad-kostecki.de;
> > > linux-kernel@vger.kernel.org; mingo@redhat.com; hpa@zytor.com;
> > > tglx@linutronix.de; devel@acpica.org
> > > Subject: [Devel] ACPI: Also allow ACPI table adding via initrd not
> > > only overriding
> > >
> > > The ACPICA patches have to go into separate acpica repository first.
> > > It should also be checked in acpica whether the table signature the
> > > OS likes to add already exists (from BIOS). In this case the table
> > > must not be added.
> > >
> > > Worked here by trying to override a DSDT and addind a BGRT table.
> > >
> > > Thomas
> > >
> > > _______________________________________________
> > > Devel mailing list
> > > Devel@acpica.org
> > > https://lists.acpica.org/mailman/listinfo/devel
next prev parent reply other threads:[~2014-02-18 19:59 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-14 10:23 [PATCH] x86: HPET force enable for Soekris net6501 Conrad Kostecki
2014-02-14 17:46 ` H. Peter Anvin
2014-02-14 18:06 ` AW: " Conrad Kostecki
2014-02-14 18:08 ` H. Peter Anvin
2014-02-14 18:13 ` AW: " Conrad Kostecki
2014-02-14 18:16 ` H. Peter Anvin
2014-02-14 18:21 ` Thomas Gleixner
2014-02-14 18:22 ` H. Peter Anvin
2014-02-14 18:38 ` Thomas Gleixner
2014-02-14 18:39 ` H. Peter Anvin
2014-02-14 19:15 ` Thomas Gleixner
2014-02-14 19:26 ` H. Peter Anvin
2014-02-14 19:59 ` Thomas Gleixner
2014-02-14 20:06 ` H. Peter Anvin
2014-02-14 21:16 ` Thomas Gleixner
2014-02-14 21:18 ` H. Peter Anvin
2014-02-14 21:47 ` Thomas Gleixner
2014-02-14 21:48 ` H. Peter Anvin
2014-02-17 16:28 ` Thomas Renninger
2014-02-17 17:19 ` H. Peter Anvin
2014-02-17 18:23 ` Thomas Renninger
2014-02-17 18:47 ` H. Peter Anvin
2014-02-17 19:25 ` Thomas Renninger
2014-02-17 19:40 ` H. Peter Anvin
2014-02-18 18:22 ` ACPI: Also allow ACPI table adding via initrd not only overriding Thomas Renninger
2014-02-18 18:22 ` [PATCH 1/4] ACPI: Provide support for ACPI table adding via OS Thomas Renninger
2014-02-18 18:27 ` H. Peter Anvin
2014-02-18 18:44 ` Thomas Renninger
2014-02-18 20:51 ` H. Peter Anvin
2014-02-19 11:22 ` Thomas Renninger
2014-02-21 7:24 ` [Devel] " Zheng, Lv
2014-02-21 7:28 ` Zheng, Lv
2014-02-18 18:22 ` [PATCH 2/4] ACPICA: Introduce new acpi_os_physical_table_add OS callback Thomas Renninger
2014-02-18 18:22 ` [PATCH 3/4] ACPICA: Add BGRT signature to known signatures Thomas Renninger
2014-02-18 18:22 ` [PATCH 4/4] ACPI: Add new table signatures that can be overridden/added Thomas Renninger
2014-02-18 18:38 ` [Devel] ACPI: Also allow ACPI table adding via initrd not only overriding Moore, Robert
2014-02-18 18:52 ` Thomas Renninger
2014-02-18 19:59 ` Moore, Robert [this message]
2014-02-19 11:14 ` Thomas Renninger
2014-02-19 13:03 ` Thomas Gleixner
2014-02-14 18:28 ` AW: AW: AW: [PATCH] x86: HPET force enable for Soekris net6501 Conrad Kostecki
2014-09-09 13:56 ` Eric Sesterhenn
2014-09-09 14:54 ` Thomas Gleixner
2014-09-09 15:26 ` H. Peter Anvin
2014-09-09 15:41 ` Thomas Gleixner
2014-09-12 9:41 ` Eric Sesterhenn
2014-09-12 10:37 ` Thomas Gleixner
2014-09-12 11:06 ` [PATCH] x86: HPET force enable for e6xx based systems Eric Sesterhenn
2014-09-16 0:58 ` [tip:x86/platform] " tip-bot for Peter Neubauer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=94F2FBAB4432B54E8AACC7DFDE6C92E37C7D78A7@ORSMSX103.amr.corp.intel.com \
--to=robert.moore@intel.com \
--cc=ck@conrad-kostecki.de \
--cc=devel@acpica.org \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=tglx@linutronix.de \
--cc=trenn@suse.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).