On Mon, 30 Nov 2020 15:34:40 -0800, 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.gb80...@google.com/
>
> [...]
Applied to arm64 (for-next/scs), thanks!
[1/2] scs: switch to vmapped shadow stacks
https://git.kernel.org/arm64/c/a2abe7cbd8fe
[2/2] arm64: scs: use vmapped IRQ and SDEI shadow stacks
https://git.kernel.org/arm64/c/ac20ffbb0279
I also threw a patch on top implementing the suggestion I made on v2, so
please take a look if you get a chance.
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
