lkml.org 
[lkml]   [2009]   [Aug]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[patch 2/3] x86/boot: adding hw subarch ID for Moorestown
From: Jacob Pan <jacob.jun.pan@intel.com>
Date: Thu, 11 Jun 2009 20:34:47 -0700
Subject: [patch 2/3] [PATCH] x86/boot: adding hw subarch ID for Moorestown

x86 bootprotocol 2.07 has introduced hardware_subarch ID in the boot
parameters provided by FW. We use it to identify Moorestown platforms.

The subarchitecture ID will help select a set of platform features and
x86_quirks.

[ tglx: Cleanup and paravirt fix ]

Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
Documentation/x86/boot.txt | 1 +
arch/x86/include/asm/bootparam.h | 10 ++++++++++
arch/x86/kernel/head_32.S | 1 +
3 files changed, 12 insertions(+)

Index: linux-2.6-tip/Documentation/x86/boot.txt
===================================================================
--- linux-2.6-tip.orig/Documentation/x86/boot.txt
+++ linux-2.6-tip/Documentation/x86/boot.txt
@@ -599,6 +599,7 @@ Protocol: 2.07+
0x00000000 The default x86/PC environment
0x00000001 lguest
0x00000002 Xen
+ 0x00000003 Moorestown MID

Field name: hardware_subarch_data
Type: write (subarch-dependent)
Index: linux-2.6-tip/arch/x86/include/asm/bootparam.h
===================================================================
--- linux-2.6-tip.orig/arch/x86/include/asm/bootparam.h
+++ linux-2.6-tip/arch/x86/include/asm/bootparam.h
@@ -109,4 +109,14 @@ struct boot_params {
__u8 _pad9[276]; /* 0xeec */
} __attribute__((packed));

+enum {
+ X86_SUBARCH_PC = 0,
+ X86_SUBARCH_LGUEST,
+ X86_SUBARCH_XEN,
+ X86_SUBARCH_MRST,
+ X86_NR_SUBARCHS,
+};
+
+
+
#endif /* _ASM_X86_BOOTPARAM_H */
Index: linux-2.6-tip/arch/x86/kernel/head_32.S
===================================================================
--- linux-2.6-tip.orig/arch/x86/kernel/head_32.S
+++ linux-2.6-tip/arch/x86/kernel/head_32.S
@@ -157,6 +157,7 @@ subarch_entries:
.long default_entry /* normal x86/PC */
.long lguest_entry /* lguest hypervisor */
.long xen_entry /* Xen hypervisor */
+ .long default_entry /* Moorestown MID */
num_subarch_entries = (. - subarch_entries) / 4
.previous
#endif /* CONFIG_PARAVIRT */



\
 
 \ /
  Last update: 2009-08-30 15:49    [W:0.034 / U:8.400 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site