[Crash-utility] ARM support for CONFIG_SPARSEMEM:(wasRe:DDimage)

[takuo.koguchi.sw at hitachi.com]

>I agree. We need to start to separate different ARM platforms where normal
>v<->p rules don't apply and add necessary code to perform the translations.
Thank you very much for your effort and patience. I am looking forward to see it.

There is only one  question left in my mind.
Why a vmcore file with the following header is OK for crash to work fine even though the PhysAddr is totally wrong?  (I am very happy with this)  
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
NOTE 0x000074 0x00000000 0x00000000 0x00000 0x00000 0
LOAD 0x000074 0xc0000000 0x00000000 0x20000000 0x20000000 RWE 
  

Takuo

>On Thu, May 26, 2011 at 12:11:35PM -0400, Dave Anderson wrote:
>> 
>> > 
>> > And I guess VTOP/PTOV needs modification in accordance with
>> > __phys_to_virt and __virt_to_phys.
>> 
>> Right...
>> 
>> Ultimately it will be advisable to extract the ARM VTOP() and PTOV()
>> macros into machine-dependent functions, i.e., similar to the X86_64
>> and IA64 architectures.  And in those functions, intelligence will
>> have to be applied to determine how to handle the various ARM types.
>
>I agree. We need to start to separate different ARM platforms where normal
>v<->p rules don't apply and add necessary code to perform the translations.
>
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