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From: Thomas Gleixner <tglx@linutronix.de>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Conrad Kostecki <ck@conrad-kostecki.de>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"x86@kernel.org" <x86@kernel.org>,
	"mingo@redhat.com" <mingo@redhat.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Thomas Renninger <trenn@suse.de>
Subject: Re: AW: AW: [PATCH] x86: HPET force enable for Soekris net6501
Date: Fri, 14 Feb 2014 22:16:41 +0100 (CET)	[thread overview]
Message-ID: <alpine.DEB.2.02.1402142140430.21991@ionos.tec.linutronix.de> (raw)
In-Reply-To: <52FE7738.6040009@zytor.com>

On Fri, 14 Feb 2014, H. Peter Anvin wrote:
> On 02/14/2014 11:59 AM, Thomas Gleixner wrote:
> > On Fri, 14 Feb 2014, H. Peter Anvin wrote:
> >> On 02/14/2014 11:15 AM, Thomas Gleixner wrote:
> >>> I'm fine with ACPI tables if we can provide simple means for embedded
> >>> users to load one via grub or just attach it to the kernel image.
> >>
> >> That already exists, see Documentation/acpi/initrd_table_override.txt.
> > 
> > That requires, that you have already ACPI tables.
> > 
> > ACPI_SIG_RSDP cannot be overridden and that's the base table you need
> > to get ACPI going in the first place. So we need support for that and
> > probably for storing the tables at some non canonical place.
> > 
> 
> Well, the RSDP and RSDT/XSDT are nothing but pointers to other tables,
> so if explicitly overridden I'm not sure if one actually would need
> them.  That doesn't mean our current code will work without them, though.

I tried once to overload all of the tables, but failed miserably in
the ACPI dungeon. RSDP was the major pain point IIRC.

Thanks,

	tglx


  reply	other threads:[~2014-02-14 21:16 UTC|newest]

Thread overview: 64+ 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 [this message]
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 18:23                                   ` [Devel] " Thomas Renninger
2014-02-17 18:47                                   ` AW: AW: " H. Peter Anvin
2014-02-17 19:25                                     ` Thomas Renninger
2014-02-17 19:25                                       ` [Devel] " Thomas Renninger
2014-02-17 19:40                                       ` AW: AW: " 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                                           ` [Devel] " Thomas Renninger
2014-02-18 18:22                                           ` [PATCH 1/4] ACPI: Provide support for ACPI table adding via OS Thomas Renninger
2014-02-18 18:22                                             ` [Devel] " Thomas Renninger
2014-02-18 18:27                                             ` H. Peter Anvin
2014-02-18 18:44                                               ` Thomas Renninger
2014-02-18 18:44                                                 ` [Devel] " Thomas Renninger
2014-02-18 20:51                                                 ` H. Peter Anvin
2014-02-19 11:22                                                   ` Thomas Renninger
2014-02-19 11:22                                                     ` [Devel] " Thomas Renninger
2014-02-21  7:24                                                     ` Zheng, Lv
2014-02-21  7:24                                                       ` Zheng, Lv
2014-02-21  7:28                                                 ` 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                                             ` [Devel] " Thomas Renninger
2014-02-18 18:22                                           ` [PATCH 3/4] ACPICA: Add BGRT signature to known signatures Thomas Renninger
2014-02-18 18:22                                             ` [Devel] " 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 18:22                                             ` [Devel] " Thomas Renninger
2014-02-18 18:38                                           ` [Devel] ACPI: Also allow ACPI table adding via initrd not only overriding Moore, Robert
2014-02-18 18:38                                             ` Moore, Robert
2014-02-18 18:52                                             ` Thomas Renninger
2014-02-18 18:52                                               ` Thomas Renninger
2014-02-18 19:59                                               ` Moore, Robert
2014-02-18 19:59                                                 ` Moore, Robert
2014-02-19 11:14                                                 ` Thomas Renninger
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

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