Re: [PATCH] arm64/ptrace: Flush FP state when setting ZT0

On Thu, 03 Aug 2023 01:19:06 +0100, Mark Brown wrote:

When setting ZT0 via ptrace we do not currently force a reload of the floating point register state from memory, do that to ensure that the newly set value gets loaded into the registers on next task execution.

The function was templated off the function for FPSIMD which due to our providing the option of embedding a FPSIMD regset within the SVE regset does not directly include the flush.

[...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] arm64/ptrace: Flush FP state when setting ZT0 https://git.kernel.org/arm64/c/89a65c3f170e