Re: [PATCH 0/2] scs: switch to vmapped shadow stacks

[Will Deacon]

On Tue, Nov 17, 2020 at 05:35:24PM +0000, Catalin Marinas wrote:
> On Thu, Oct 22, 2020 at 01:23:53PM -0700, Sami Tolvanen wrote:
> > As discussed a few months ago [1][2], virtually mapped shadow call stacks
> > are better for safety and robustness. This series dusts off the VMAP
> > option from the original SCS patch series and switches the kernel to use
> > virtually mapped shadow stacks unconditionally when SCS is enabled.
> > 
> >  [1] https://lore.kernel.org/lkml/20200515172355.GD23334@willie-the-truck/
> >  [2] https://lore.kernel.org/lkml/20200427220942.GB80713@xxxxxxxxxx/
> > 
> > 
> > Sami Tolvanen (2):
> >   scs: switch to vmapped shadow stacks
> >   arm64: scs: use vmapped IRQ and SDEI shadow stacks
> 
> Will, Mark. Any objections to this series? If not, I can queue it for
> 5.11 via the arm64 tree.

It's on my list to review, but I have a tonne of other things I have to get
to first.

Will