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SubjectRe: [PATCH 1/3] X86: Revamp reboot behaviour to match Windows more closely
On Thu, Dec 09, 2010 at 02:32:52PM -0800, H. Peter Anvin wrote:
> On 12/09/2010 02:32 PM, Matthew Garrett wrote:
>> On Thu, Dec 09, 2010 at 02:25:05PM -0800, H. Peter Anvin wrote:
>>> When this was discussed before we agreed to use ACPI reboot by default
>>> with an ACPI cutoff date; this doesn't have any such cutoff.
>>
>> Windows doesn't either. Older machines simply won't have the appropriate
>> flag set in their FADT.
>>
>
> Windows doesn't get validated on old hardware.

XP does this, and older hardware predates the version of the ACPI spec
that introduced this flag.

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


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