From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: [PATCH 1/3] X86: Revamp reboot behaviour to match Windows more closely Date: Thu, 9 Dec 2010 22:38:47 +0000 Message-ID: <20101209223847.GA24452@srcf.ucam.org> References: <1291931204-5854-1-git-send-email-mjg@redhat.com> <4D015741.7090500@zytor.com> <20101209223201.GA23894@srcf.ucam.org> <4D015914.1040009@zytor.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cavan.codon.org.uk ([93.93.128.6]:35354 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751082Ab0LIWi4 (ORCPT ); Thu, 9 Dec 2010 17:38:56 -0500 Content-Disposition: inline In-Reply-To: <4D015914.1040009@zytor.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: "H. Peter Anvin" Cc: x86@kernel.org, linux-acpi@vger.kernel.org, lenb@kernel.org, linux-kernel@vger.kernel.org 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