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Message-ID: <4D015914.1040009@zytor.com> Date: Thu, 09 Dec 2010 14:32:52 -0800 From: "H. Peter Anvin" <hpa@...or.com> To: Matthew Garrett <mjg59@...f.ucam.org> CC: x86@...nel.org, linux-acpi@...r.kernel.org, lenb@...nel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 1/3] X86: Revamp reboot behaviour to match Windows more closely On 12/09/2010 02:32 PM, Matthew Garrett wrote: > On Thu, Dec 09, 2010 at 02:25:05PM -0800, H. Peter Anvin wrote: >> On 12/09/2010 01:46 PM, Matthew Garrett wrote: >>> Windows reboots by hitting the ACPI reboot vector (if available), trying >>> the keyboard controller, hitting the ACPI reboot vector again and then >>> giving the keyboard controller one last go. Rework our reboot process a >>> little to default to matching this behaviour, although we'll fall through >>> to attempting a triple fault if nothing else works. >>> >>> Signed-off-by: Matthew Garrett<mjg@...hat.com> >> >> 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. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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