Re: [PATCH v9 3/7] firmware: arm_rmm: Move RSI support out of arch/arm64
From: Catalin Marinas <catalin.marinas@arm.com>
Date: 2026-08-05 11:22:06
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On Wed, Aug 05, 2026 at 12:02:51PM +0530, Aneesh Kumar K.V (Arm) wrote:
The RSI SMCCC function IDs describe a firmware ABI and are not arm64 architecture specific definitions. Follow-up changes need to use them from non-arch code, including drivers/firmware/smccc and the Arm CCA guest driver. Move the complete Realm Service Interface (RSI) implementation from arch/arm64 to drivers/firmware/arm_rmm. The RSI SMCCC definitions and command helpers are also moved to include/linux so they can be shared by architecture code and firmware or driver code. This also keeps the firmware interface outside architecture code, as requested [1]. [1] https://lore.kernel.org/all/agsNO9cc7H-b0H8L@willie-the-truck (local) Signed-off-by: Aneesh Kumar K.V (Arm) <aneesh.kumar@kernel.org>
I haven't checked but Sashiko has some points that it may break the build on other architectures with COMPILE_TEST. https://sashiko.dev/#/patchset/20260805063255.1638614-1-aneesh.kumar@kernel.org (for some reason I get error 502 above; hopefully it's temporary) -- Catalin