Re: [PATCH v11 6/7] firmware: smccc: arm-cca-guest: Bind the TSM provider to an SMCCC device
From: Jason Gunthorpe <jgg@nvidia.com>
Date: 2026-09-16 12:47:05
Also in:
linux-arm-kernel, lkml
On Mon, 14 Sep 2026 11:35:10 +0530, Aneesh Kumar K.V (Arm) [off-list ref] wrote:
The Arm CCA guest TSM provider currently binds through the arm-cca-dev platform device. Like arm-smccc-trng, this device is not an independent platform resource; it is a software representation of the RSI firmware service discovered through SMCCC. Move RSI discovery into the SMCCC firmware driver. When the SMCCC conduit is SMC and if RSI ABI version call is supported, create an arm-rsi-dev SMCCC device. Convert the Arm CCA guest TSM provider to an SMCCC driver so it binds to that discovered RSI service and keeps module autoloading through the SMCCC device id table. [...]
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> -- Jason