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kernel

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    WANG Chao authored and H. Peter Anvin committed
    New kexec-tools wants to pass kdump kernel needed memmap via E820
    directly, instead of memmap=exactmap. This makes saved_max_pfn not
    be passed down to 2nd kernel. To keep 1st kernel and 2nd kernel using
    the same TCE table size, Muli suggest to hard code the size to max (8M).
    
    We can't get rid of saved_max_pfn this time, for backward compatibility
    with old first kernel and new second kernel. However new first kernel
    and old second kernel can not work unfortunately.
    
    v2->v1:
    - retain saved_max_pfn so new 2nd kernel can work with old 1st kernel
      from Vivek
    
    Signed-off-by: default avatarWANG Chao <chaowang@redhat.com>
    Acked-by: default avatarVivek Goyal <vgoyal@redhat.com>
    Acked-by: default avatarMuli Ben-Yehuda <mulix@mulix.org>
    Acked-by: default avatarJon Mason <jdmason@kudzu.us>
    Link: http://lkml.kernel.org/r/1394463120-26999-1-git-send-email-chaowang@redhat.com
    
    
    Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
    0534af01
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