Re: [PATCH v3 0/3] x86/fpu: Allow the In-Field Scan driver to initialize FPU state

From: Ilpo Järvinen
Date: Mon Jun 03 2024 - 06:11:36 EST


On Thu, 30 May 2024, Chang S. Bae wrote:

> This revision switches to a new approach by providing a helper to
> initialize user FPU states for the driver, which is considerably simpler.
> This approach could serve as an example for addressing similar situations
> from a non-critical path.
>
> I thought fpu_reset_fpregs() as the helper name. There is already one
> with this name. Then, I realized the existing one is a bit misaligned, so
> renamed it first here.
>
> Thanks to Dave for the reviews and the suggestion.
>
> Thanks,
> Chang
>
> The previous postings:
> V2: https://lore.kernel.org/all/20240507235344.249103-1-chang.seok.bae@xxxxxxxxx
> V1: https://lore.kernel.org/all/20240430212508.105117-1-chang.seok.bae@xxxxxxxxx
>
> Chang S. Bae (3):
> x86/fpu: Rename fpu_reset_fpregs() to fpu_reset_fpstate_regs()
> x86/fpu: Allow FPU users to initialize FPU state
> platform/x86/intel/ifs: Initialize FPU states for the scan test
>
> arch/x86/include/asm/fpu/api.h | 2 ++
> arch/x86/kernel/fpu/core.c | 17 ++++++++++++++---
> drivers/platform/x86/intel/ifs/ifs.h | 1 +
> drivers/platform/x86/intel/ifs/runtest.c | 7 +++++++
> 4 files changed, 24 insertions(+), 3 deletions(-)

Acked-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>

Do x86 maintainers plan to take these through their tree?

--
i.