[PATCH v1] kexec/arch/i386: Add support for KASLR memory randomization

Simon Horman horms at verge.net.au
Thu Sep 29 00:43:24 PDT 2016

On Tue, Sep 13, 2016 at 03:10:05PM +0800, Baoquan He wrote:
> From: Thomas Garnier <thgarnie at google.com>
> Multiple changes were made on KASLR (right now in linux-next). One of
> them is randomizing the virtual address of the physical mapping, vmalloc
> and vmemmap memory sections. It breaks kdump ability to read physical
> memory.
> This change identifies if KASLR memories randomization is used by
> checking if the page_offset_base variable exists. It search for the
> correct PAGE_OFFSET value by looking at the loaded memory section and
> find the lowest aligned on PUD (the randomization level).
> Related commits on linux-next:
>  - 0483e1fa6e09d4948272680f691dccb1edb9677f: Base for randomization
>  - 021182e52fe01c1f7b126f97fd6ba048dc4234fd: Enable for PAGE_OFFSET
> Signed-off-by: Thomas Garnier <thgarnie at google.com>

Thanks, applied.

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