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

From: Catalin Marinas
Date: Tue Nov 17 2020 - 12:35:52 EST


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.

Thanks.

--
Catalin