On Wed, 11 Jan 2017, Dave Jiang wrote: > CONFIG_RANDOMIZE_BASE relocates the kernel to a random base address. > However it does not take into account the memmap= parameter passed in from > the kernel cmdline. This results in the kernel sometimes being put in > the middle of memmap. Teaching kaslr to not insert the kernel in > memmap defined regions. We will support up to 4 memmap regions. Any > additional regions will cause kaslr to disable. The mem_avoid set has > been augmented to add up to 4 unusable regions of memmaps provided by the > user to exclude those regions from the set of valid address range to insert > the uncompressed kernel image. The nn@ss ranges will be skipped by the > mem_avoid set since it indicates memory useable. > > Signed-off-by: Dave Jiang <[email protected]> > Acked-by: Kees Cook <[email protected]> > Acked-by: Baoquan He <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
