From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bjorn Helgaas Subject: Re: [PATCH 03/12] SFI: document boot param "sfi=off" Date: Tue, 28 Jul 2009 13:24:02 -0600 Message-ID: <200907281324.03237.bjorn.helgaas@hp.com> References: <1247026438-20891-1-git-send-email-lenb@kernel.org> <57dac60d76c191e3bd72f186833fac01e4c5f8f1.1247025117.git.len.brown@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Return-path: Received: from g5t0008.atlanta.hp.com ([15.192.0.45]:14842 "EHLO g5t0008.atlanta.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752812AbZG1TYH (ORCPT ); Tue, 28 Jul 2009 15:24:07 -0400 In-Reply-To: <57dac60d76c191e3bd72f186833fac01e4c5f8f1.1247025117.git.len.brown@intel.com> Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Len Brown Cc: x86@kernel.org, sfi-devel@simplefirmware.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, Feng Tang , Len Brown On Tuesday 07 July 2009 10:13:49 pm Len Brown wrote: > From: Feng Tang > > "sfi=off" is analogous to "acpi=off" > > In practice, "sfi=off" isn't likely to be very useful, for > 1. SFI is used only when ACPI is not available > 2. Today's SFI systems are not legacy PC-compatible > > ie. "sfi=off" on an ACPI-platform is a NO-OP, > and "sfi=off" on an SFI-platform will likely result in boot failure. > > Signed-off-by: Feng Tang > Signed-off-by: Len Brown > --- > Documentation/kernel-parameters.txt | 5 +++++ > 1 files changed, 5 insertions(+), 0 deletions(-) I think the documentation update should be part of the patch that changes the functionality, so the doc always matches the code. Bjorn > diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt > index d77fbd8..68337e6 100644 > --- a/Documentation/kernel-parameters.txt > +++ b/Documentation/kernel-parameters.txt > @@ -92,6 +92,7 @@ parameter is applicable: > SECURITY Different security models are enabled. > SELINUX SELinux support is enabled. > SERIAL Serial support is enabled. > + SFI Simple Firmware Interface > SH SuperH architecture is enabled. > SMP The kernel is an SMP kernel. > SPARC Sparc architecture is enabled. > @@ -2162,6 +2163,10 @@ and is between 256 and 4096 characters. It is defined in the file > If enabled at boot time, /selinux/disable can be used > later to disable prior to initial policy load. > > + sfi= [SFI,X86] Simple Firmware Interface > + Format: { "off" } > + off -- disable SFI > + > serialnumber [BUGS=X86-32] > > shapers= [NET]