linux-kernel - Re: [patch 2/3] x86/boot: adding hw subarch ID for Moorestown

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Date:	Mon, 31 Aug 2009 13:13:59 +0200
From:	Daniele Calore <orkaan@...aan.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Peter Anvin <hpa@...or.com>,
	Arjan van de Veen <arjan@...radead.org>,
	Pan Jacob jun <jacob.jun.pan@...el.com>
Subject: Re: [patch 2/3] x86/boot: adding hw subarch ID for Moorestown

Hi,

I think there is a typo (copy/paste error), see below:

On Sun, 30 Aug 2009 13:46:28 -0000
Thomas Gleixner <tglx@...utronix.de> wrote:

> From: Jacob Pan <jacob.jun.pan@...el.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@...el.com>
> Signed-off-by: Thomas Gleixner <tglx@...utronix.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 */

Typo: s/default_entry/mrst_entry

>  num_subarch_entries = (. - subarch_entries) / 4
>  .previous
>  #endif /* CONFIG_PARAVIRT */


Daniele
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