linux-kernel - Re: [PATCH]X86:reboot.c Add some dmi entries to pci_reboot_dmi

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Date:	Tue, 1 Jun 2010 22:12:19 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	"Justin P. Mattock" <justinmattock@...il.com>
Cc:	x86@...nel.org, tglx@...utronix.de, linux-kernel@...r.kernel.org
Subject: Re: [PATCH]X86:reboot.c Add some dmi entries to
	pci_reboot_dmi_table.

On Tue, Jun 01, 2010 at 01:51:00PM -0700, Justin P. Mattock wrote:
> On 06/01/2010 01:33 PM, Matthew Garrett wrote:
>> On Tue, Jun 01, 2010 at 01:31:08PM -0700, Justin P. Mattock wrote:
>> It returns you to the prompt? The machine hangs? What do you mean by
>> "nothing"? (Also, what chipset does this machine have?)
>>
>
> this is what it does:
> It returns you to the prompt

Ok, so it does nothing. Sigh. Thapple.

> as for the chipset name..(not sure)

It's an MCP79. In that case I suspect that we're misdiagnosing this at 
some level. How about the following (again, run as root):

#include <sys/io.h>

int main() {
	iopl(3);
	outb(0xfe, 0x64);
	return 0;
}

-- 
Matthew Garrett | mjg59@...f.ucam.org
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