Messages in this thread | | | Date | Sat, 29 Aug 2009 18:58:01 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH 1/7] x86/boot: adding hw subarch ID for Moorestown |
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On Fri, 28 Aug 2009, Pan, Jacob jun wrote: > >From 2de4f68e7b0403bb39954d7c2e3d5097d0e6e3ac Mon Sep 17 00:00:00 2001 > From: Jacob Pan <jacob.jun.pan@intel.com> > Date: Thu, 11 Jun 2009 20:34:47 -0700 > Subject: [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. > > Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com> > --- > Documentation/x86/boot.txt | 1 + > arch/x86/include/asm/bootparam.h | 11 +++++++++++ > 2 files changed, 12 insertions(+), 0 deletions(-) > > diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt > index 8da3a79..30b43e1 100644 > --- a/Documentation/x86/boot.txt > +++ b/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) > diff --git a/arch/x86/include/asm/bootparam.h b/arch/x86/include/asm/bootparam.h > index 1724e8d..631cae9 100644 > --- a/arch/x86/include/asm/bootparam.h > +++ b/arch/x86/include/asm/bootparam.h > @@ -109,4 +109,15 @@ struct boot_params { > __u8 _pad9[276]; /* 0xeec */ > } __attribute__((packed)); > > +#define N_X86_SUBARCHS 4
Grr.
> +enum { > + X86_SUBARCH_PC = 0, > + X86_SUBARCH_LGUEST, > + X86_SUBARCH_XEN, > + X86_SUBARCH_MRST,
X86_NR_SUBARCHS,
perhaps ?
Also this patch will result in boot failure when paravirt is enabled. head_32.S wants to be tweaked as well.
Thanks,
tglx
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