[Query] ARM64 kaslr support - randomness, seeding and kdump

Dave Young
2018-03-13T01:54:58Z

On 03/12/18 at 08:58pm, Ard Biesheuvel wrote:
[snip]
> > - We pass the dtb over to the kdump kernel for arm64 kdump, but the
> > '/chosen/kaslr-seed' property would be zeroed out already by the
> > primary kernel and the secondary would work in a *nokaslr* environment
> > due to the same (see [4] for example)
> >
>
> What would be the point of randomizing the placement of the kdump
> kernel? And don't say 'because x86 does it', because that is not a
> good reason.

Kdump kernel does not need kaslr. Actually in Fedora we use 'nokaslr'
even for x86_64

Thanks
Dave