Messages in this thread Patch in this message | | | Date | Sun, 30 Aug 2009 13:46:28 -0000 | From | Thomas Gleixner <> | 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 */
| |