linux-kernel - Re: [PATCH 0/4] x86: UV runtime bios calls

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1222224550.23099.99.camel@yhuang-dev.sh.intel.com>
Date:	Wed, 24 Sep 2008 10:49:10 +0800
From:	Huang Ying <ying.huang@...el.com>
To:	Russ Anderson <rja@....com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, tglx@...utronix.de,
	"H. Peter Anvin" <hpa@...or.com>, Jack Steiner <steiner@....com>
Subject: Re: [PATCH 0/4] x86: UV runtime bios calls

Hi, Russ,

This seems to include a extension to EFI runtime services. Why not also
discuss that on UEFI forum? You can get some information about UEFI
forum from http://www.uefi.org/.

Best Regards,
Huang Ying

On Mon, 2008-09-22 at 16:06 -0500, Russ Anderson wrote:
> [PATCH 0/4] x86: UV runtime bios calls
> 
> Purpose: 
> 	Create an interface to allow calls into bios to return platform
> 	specific information.  The interface uses EFI SAL table entry.
> 	EFI provides a mechanism for defining function pointers to 
> 	firmware routines.  This patchset builds on the EFI mechanism
> 	to provide access to those firmware routines.
> 
> Patches:
> 	uv_efi_bios:	Look for SAL entry in EFI tables.
> 
> 	uv_bios_common:	Add the EFI callback function using the EFI table
> 			entry.  Create associated wrapper code.  Initialize
> 			SAL system table entry info at boot time.
> 
> 	uv_bios_call_partition: Add call to get partitioning related info.
> 
> 	uv_sysfs:	Create sysfs entrys in /sys/firmware/sgi_uv/ for
> 			partitioning related information.
> 
> Implementation comments:
> 
> 	This patch uses sal_systab.  sal_systab is used on ia64, but was
> 	not used on x86.  An alternative would be to create a new
> 	EFI entry type (uv_systab), though that would require adding 
> 	to struct efi.
> 
> 	The location in sysfs (/sys/firmware/sgi_uv/) is based on
> 	community feedback.
> 
> 	If EFI is not configured (CONFIG_EFI), the calls will return -ENOSYS.
> 	If run on a system with a bios that does not supportes EFI SAL, the
> 	calls will return -ENOSYS.
> 
> 	Paul Jackson assisted in the development of this code.
> 	

Download attachment "signature.asc" of type "application/pgp-signature" (198 bytes)