linux-kernel - Re: AW: AW: [PATCH] x86: HPET force enable for Soekris net6501

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Date:	Fri, 14 Feb 2014 13:18:15 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Thomas Gleixner <tglx@...utronix.de>
CC:	Conrad Kostecki <ck@...rad-kostecki.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Thomas Renninger <trenn@...e.de>
Subject: Re: AW: AW: [PATCH] x86: HPET force enable for Soekris net6501

On 02/14/2014 01:16 PM, Thomas Gleixner wrote:
>>
>> 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.
> 

I suspect we need to handle the RSDP and RSDT/XSDT specially, since,
again, they are really just pointers to where to find the other tables.
 They are part of the discovery, not the data.

	-hpa


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