From: "wilbur.chan" <wilbur512@gmail.com>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: How to implement kexec on e500 ?
Date: Mon, 29 Jun 2009 23:36:36 +0800 [thread overview]
Message-ID: <e997b7420906290836u72bd6abbw553df5e77f097349@mail.gmail.com> (raw)
In-Reply-To: <BD32B91E-83B3-4ED5-A5C1-60B8B6EF9B3C@kernel.crashing.org>
Excuse me ,
btw,how to search these patches on this maillist?
through Linuxppc-dev Archives one by one?
Cheers,
wilbur
2009/6/29, Kumar Gala <galak@kernel.crashing.org>:
>
> On Jun 29, 2009, at 8:47 AM, wilbur.chan wrote:
>
>> kernel 2.6.21.7
>>
>> As we know , kexec stores data for new kernel image , in the form
>> of a page list.
>>
>> And kexec uses the physical address of the another page for a
>> "next-page" pointer.
>>
>> However, PowerPC e500 does not allow users to turn off the MMU, so we
>> can not used physical address directly in our code.
>>
>>
>> Someone suggested that changing relocate_kernel.S to add a TLB 1-to-1
>> mapping of DRAM .
>>
>> What does "mapping" mean ?
>>
>> Any suggestion to implement kexec on e500 ?
>
> Wilbur, kexec has been implemented on e500. There are some patches on
> the list for this and they just need to be respun and reviewed again.
>
> - k
>
next prev parent reply other threads:[~2009-06-29 15:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-29 13:47 How to implement kexec on e500 ? wilbur.chan
2009-06-29 14:50 ` Kumar Gala
2009-06-29 15:36 ` wilbur.chan [this message]
2009-06-29 16:01 ` kernel mailz
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