linux-kernel - Re: [Xen-devel] Re: [PATCH 00 of 36] x86/paravirt: groundwork for 64-bit Xen support

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Date:	Sun, 29 Jun 2008 21:35:04 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Jeremy Fitzhardinge" <jeremy@...p.org>
Cc:	"Ingo Molnar" <mingo@...e.hu>, "Nick Piggin" <npiggin@...e.de>,
	"Mark McLoughlin" <markmc@...hat.com>,
	xen-devel <xen-devel@...ts.xensource.com>,
	"Eduardo Habkost" <ehabkost@...hat.com>,
	"Vegard Nossum" <vegard.nossum@...il.com>,
	"Stephen Tweedie" <sct@...hat.com>, x86@...nel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [Xen-devel] Re: [PATCH 00 of 36] x86/paravirt: groundwork for 64-bit Xen support

On Sun, Jun 29, 2008 at 8:02 PM, Jeremy Fitzhardinge <jeremy@...p.org> wrote:
> Ingo Molnar wrote:
>>
>> with this config:
>>
>>  http://redhat.com/~mingo/misc/config-Sun_Jun_29_10_29_11_CEST_2008.bad
>>
>> i've saved the merged 2.6.26-rc8-tip-00241-gc6c8cb2-dirty tree into
>> tip/tmp.x86.xen-64bit.Sun_Jun_29_10 and pushed it out, so you can test that
>> exact version.
>
> Looks like the setup.c unification missed the early_ioremap init from the
> early_ioremap unification.  Unconditionally call early_ioremap_init().
>
> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
>
> diff -r 5c26177fdf8c arch/x86/kernel/setup.c
> --- a/arch/x86/kernel/setup.c   Sun Jun 29 16:57:52 2008 -0700
> +++ b/arch/x86/kernel/setup.c   Sun Jun 29 19:57:00 2008 -0700
> @@ -523,11 +523,12 @@
>        memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data));
>        pre_setup_arch_hook();
>        early_cpu_init();
> -       early_ioremap_init();
>        reserve_setup_data();
> #else
>        printk(KERN_INFO "Command line: %s\n", boot_command_line);
> #endif
> +
> +       early_ioremap_init();
>
>        ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev);
>        screen_info = boot_params.screen_info;

it could be wrong? do we need that for 64 bit?

YH
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