Re: [PATCH v6 00/13] ARMv8.3 pointer authentication userspace support

[Will Deacon]

On Wed, Dec 12, 2018 at 07:35:44PM +0000, Will Deacon wrote:
> On Fri, Dec 07, 2018 at 06:39:18PM +0000, Kristina Martsenko wrote:
> > This series adds support for the ARMv8.3 pointer authentication extension,
> > enabling userspace return address protection with GCC 7 and above.
> 
> I've pushed this out to for-next/ptr-auth with the following changes:
> 
>   * Rebased onto for-next/core
>   * Dropped the GET/SET ptrace requests for now, due to fragile regset usage
>   * Moved the user key state from thread_info to thread_struct
>   * Removed use of VA_BITS for the PAC mask (doesn't work with 52-bit user VAs)
>   * Added a patch to use _BITUL for the bit definitions in sysreg.h
>   * Tidied up the HWCAP generation [need to run this past Suzuki]
>   * Reduced the number of CPU caps from 6 to 4 [also need to run past Suzuki]
>   * Added Reviewed-by tags
> 
> I've not merged it into for-next/core yet, because it could use some testing
> and review first.

This is now in for-next/core, so I've removed the for-next/ptr-auth staging
branch.

Will