[PATCH] makedumpfile: Support ARM64

[Pratyush Anand]

Hi Timur,

On 23/06/2015:06:19:01 PM, Timur Tabi wrote:
> On Fri, May 15, 2015 at 1:30 PM, Pratyush Anand <panand at redhat.com> wrote:
> > Patch adds support for ARM64 in makedumpfile. It takes care of vmalloc,
> > vmemmap, module and directly map kernel memory region's translation.
> >
> > Currently we only support 2 leverl 64K pages and VA_BITS as 42. Support
> > to find these machine specific parameters dynamically and then to act
> > accordingly can be added latter.
> 
> So ARM64 kernels are typically compiled with 3-level 4KB pages:
> 
> CONFIG_ARM64_4K_PAGES=y
> # CONFIG_ARM64_64K_PAGES is not set
> CONFIG_ARM64_VA_BITS_39=y
> # CONFIG_ARM64_VA_BITS_48 is not set
> CONFIG_ARM64_VA_BITS=39
> 
> Does this mean that your patch won't work on such a kernel?  If so, do

Yes, it will not work with above kernel.

> you have any plans to add support for 4K 3-level pages?

I can try to find out some time in weekend to refactor arm64 code
and then add 3 level, 4K support. May be I will need a Tested-by.

~Pratyush