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x86: Add hardware_subarch ID for Moorestown

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

[ tglx: Cleanup and paravirt fix ]

Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Pan, Jacob jun 2009-08-28 14:52:47 -07:00 committed by Thomas Gleixner
parent 47a3d5da70
commit 162bc7ab01
3 changed files with 12 additions and 0 deletions
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1
Documentation/x86/boot.txt
View file

@ -599,6 +599,7 @@ Protocol: 2.07+
0x00000000 The default x86/PC environment 0x00000000 The default x86/PC environment
0x00000001 lguest 0x00000001 lguest
0x00000002 Xen 0x00000002 Xen
0x00000003 Moorestown MID
Field name: hardware_subarch_data Field name: hardware_subarch_data
Type: write (subarch-dependent) Type: write (subarch-dependent)

10
arch/x86/include/asm/bootparam.h
View file

@ -109,4 +109,14 @@ struct boot_params {
__u8 _pad9[276]; /* 0xeec */ __u8 _pad9[276]; /* 0xeec */
} __attribute__((packed)); } __attribute__((packed));
enum {
X86_SUBARCH_PC = 0,
X86_SUBARCH_LGUEST,
X86_SUBARCH_XEN,
X86_SUBARCH_MRST,
X86_NR_SUBARCHS,
};
#endif /* _ASM_X86_BOOTPARAM_H */ #endif /* _ASM_X86_BOOTPARAM_H */

1
arch/x86/kernel/head_32.S
View file

@ -157,6 +157,7 @@ subarch_entries:
.long default_entry /* normal x86/PC */ .long default_entry /* normal x86/PC */
.long lguest_entry /* lguest hypervisor */ .long lguest_entry /* lguest hypervisor */
.long xen_entry /* Xen hypervisor */ .long xen_entry /* Xen hypervisor */
.long default_entry /* Moorestown MID */
num_subarch_entries = (. - subarch_entries) / 4 num_subarch_entries = (. - subarch_entries) / 4
.previous .previous
#endif /* CONFIG_PARAVIRT */ #endif /* CONFIG_PARAVIRT */