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

Catalin Marinas catalin.marinas at arm.com
Tue Nov 17 12:35:24 EST 2020


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@google.com/
> 
> 
> 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



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