linux/drivers/virt
Aneesh Kumar K.V (Arm) 0d5be76b60 firmware: smccc: arm-cca-guest: Bind the TSM provider to an SMCCC device
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>
2026-09-24 16:49:31 +01:00
..
acrn Char/Misc/IIO/FPGA/GPIB/etc driver updates for 7.2-rc1 2026-06-22 12:20:21 -07:00
coco firmware: smccc: arm-cca-guest: Bind the TSM provider to an SMCCC device 2026-09-24 16:49:31 +01:00
nitro_enclaves Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
vboxguest Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
fsl_hypervisor.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
Kconfig virt: Fix Kconfig warning when selecting TSM without VIRT_DRIVERS 2025-12-04 17:34:16 -08:00
Makefile virt: coco: Add a coco/Makefile and coco/Kconfig 2023-10-19 18:11:38 -07:00
vmgenid.c Merge branch 'acpi-bus' 2024-05-13 19:15:14 +02:00