Re: [PATCH 1/3] [powerpc32] Process dynamic relocations for kernel

On 10/10/11 20:45, Scott Wood wrote:

On 10/10/2011 04:55 AM, Suzuki K. Poulose wrote:

quoted

The following patch implements the dynamic relocation processing for
PPC32 kernel. relocate() accepts the target virtual address and relocates
  the kernel image to the same.

How much overhead is involved in a true relocatable kernel?  Is it worth
preserving the old "relocatable" booke behavior under a different name?

There are '75782' on an ebony kernel with minimal config. So thats a pretty big
number for small embedded chips. I guess, preserving the 'old relocatable' (page
aligned approach) would be a good idea for the architectures which can afford it.
e.g, places where TLB size is 64M or less.

Thanks
Suzuki