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0d5be76b60
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 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. Keep the old arm-cca-dev platform-device registration for now. Userspace has used that device as a Realm-guest indicator, so removing it is left to a follow-up patch that adds a replacement sysfs ABI. Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Sudeep Holla <sudeep.holla@kernel.org> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Lorenzo Pieralisi <lpieralisi@kernel.org> Signed-off-by: Aneesh Kumar K.V (Arm) <aneesh.kumar@kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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| .. | ||
| arm-cca-guest | ||
| efi_secret | ||
| guest | ||
| pkvm-guest | ||
| sev-guest | ||
| tdx-guest | ||
| tdx-host | ||
| Kconfig | ||
| Makefile | ||
| tsm-core.c | ||