From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Matthew Garrett <mjg@redhat.com>,
x86@kernel.org, linux-acpi@vger.kernel.org, lenb@kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] ACPI: Bug compatibility for Windows on the ACPI reboot vector
Date: Thu, 9 Dec 2010 23:41:36 +0100 [thread overview]
Message-ID: <201012092341.36260.rjw@sisk.pl> (raw)
In-Reply-To: <4D0159EA.90303@zytor.com>
On Thursday, December 09, 2010, H. Peter Anvin wrote:
> On 12/09/2010 01:46 PM, Matthew Garrett wrote:
> > Windows ignores the bit_offset and bit_width, despite the spec requiring
> > that they be validated. Drop the checks so that we match this behaviour.
> > Windows also goes straight for the keyboard controller if the ACPI reboot
> > fails, so we shouldn't sleep if we're still alive.
> >
> > Signed-off-by: Matthew Garrett<mjg@redhat.com>
>
> Be careful: the goal isn't bug-compatibility with Windows, the goal is
> to work on the maximum number of systems. Bug-compatibility with
> Windows *may* be a way to that goal, but it is not a guarantee, since
> Windows doesn't get validated against older systems that went through
> WHQL under an earlier version of Windows.
Agreed.
Rafael
next prev parent reply other threads:[~2010-12-09 22:41 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-09 21:46 [PATCH 1/3] X86: Revamp reboot behaviour to match Windows more closely Matthew Garrett
2010-12-09 21:46 ` [PATCH 2/3] ACPICA: Fix access width for reset vector Matthew Garrett
2010-12-09 22:41 ` Rafael J. Wysocki
2010-12-09 23:12 ` H. Peter Anvin
2010-12-09 23:26 ` Matthew Garrett
2010-12-09 21:46 ` [PATCH 3/3] ACPI: Bug compatibility for Windows on the ACPI reboot vector Matthew Garrett
2010-12-09 22:36 ` H. Peter Anvin
2010-12-09 22:41 ` Rafael J. Wysocki [this message]
2010-12-09 22:25 ` [PATCH 1/3] X86: Revamp reboot behaviour to match Windows more closely H. Peter Anvin
2010-12-09 22:32 ` Matthew Garrett
2010-12-09 22:32 ` H. Peter Anvin
2010-12-09 22:38 ` Matthew Garrett
2010-12-09 22:40 ` H. Peter Anvin
2010-12-09 22:51 ` Matthew Garrett
2010-12-09 22:53 ` H. Peter Anvin
2010-12-09 22:58 ` Matthew Garrett
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