From: Russ Anderson <rja@sgi.com>
To: linux-kernel@vger.kernel.org, mingo@elte.hu, tglx@linutronix.de
Cc: "H. Peter Anvin" <hpa@zytor.com>,
Huang Ying <ying.huang@intel.com>, Jack Steiner <steiner@sgi.com>,
Russ Anderson <rja@sgi.com>
Subject: [PATCH 0/4] x86: UV runtime bios calls v2
Date: Fri, 26 Sep 2008 15:01:32 -0500 [thread overview]
Message-ID: <20080926200132.GA138671@sgi.com> (raw)
[PATCH 0/4] x86: UV runtime bios calls
Purpose:
Create an interface to allow calls into bios to return platform
specific information. The interface adds a new EFI table entry
for UV. 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.
Version 2 changes:
Add uv_systab to efi struct.
Define efi_call* stubs in include/asm-x86/uv/bios.h.
Made symbols EXPORT_SYMBOL_GPL().
Added check for failure on sysfs_create_file() calls.
Other code style changes.
Patches:
uv_efi_bios: Look for UV entry in EFI tables.
uv_bios_common: Add the EFI callback function using the EFI table
entry. Create associated wrapper code. Initialize
UV 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 adds a new EFI entry type (uv_systab).
The location in sysfs (/sys/firmware/sgi_uv/) is based on
community feedback. The interface is documented in
Documentation/ABI/testing/sysfs-firmware-sgi_uv.
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 UV, the
calls will return -ENOSYS.
Paul Jackson assisted in the development of this code.
--
Russ Anderson, OS RAS/Partitioning Project Lead
SGI - Silicon Graphics Inc rja@sgi.com
reply other threads:[~2008-09-26 20:01 UTC|newest]
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