Dave Martin <dave.mar...@arm.com> writes:

> fpsimd_last_state.st is set to NULL as a way of indicating that
> current's FPSIMD registers are no longer loaded in the cpu.  In
> particular, this is done when the kernel temporarily uses or
> clobbers the FPSIMD registers for its own purposes, as in CPU PM or
> kernel-mode NEON, resulting in them being populated with garbage
> data not belonging to a task.
<snip>
>
> Signed-off-by: Dave Martin <dave.mar...@arm.com>
> Cc: Catalin Marinas <catalin.mari...@arm.com>
> Cc: Will Deacon <will.dea...@arm.com>
> Cc: Ard Biesheuvel <ard.biesheu...@linaro.org>

Reviewed-by: Alex Bennée <alex.ben...@linaro.org>

--
Alex Bennée
_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm

Reply via email to