Emulate Secure World's FF-A ABIs and allow testing U-Boot FF-A support
Features of the sandbox FF-A support:
- Introduce an FF-A emulator
- Introduce an FF-A device driver for FF-A comms with emulated Secure World
- Provides test methods allowing to read the status of the inspected ABIs
The sandbox FF-A emulator supports only 64-bit direct messaging.
Signed-off-by: Abdellatif El Khlifi
Cc: Tom Rini
Cc: Simon Glass
Cc: Ilias Apalodimas
Cc: Jens Wiklander
Cc: Heinrich Schuchardt
---
Changelog:
===
v12:
* remove reparenting by making the emulator parent of the FF-A device in the DT
* add invoke_ffa_fn()
* address nits
v11:
* rename ffa_try_discovery() to sandbox_ffa_discover()
* rename sandbox_ffa_query_core_state() to sandbox_query_ffa_emul_state()
* store the sandbox emulator pointer in the FF-A device uc_priv (struct
ffa_priv)
* set the emulator as parent of the sandbox FF-A device
v10:
* split the FF-A sandbox support into an emulator and a driver
* read FFA_VERSION and FFA_PARTITION_INFO_GET state using
sandbox_ffa_query_core_state()
* drop CONFIG_SANDBOX_FFA config
* address nits
v9: align FF-A sandbox driver with FF-A discovery through DM
v8: update ffa_bus_prvdata_get() to return a pointer rather than
a pointer address
v7: state that sandbox driver supports only 64-bit direct messaging
v4: align sandbox driver with the new FF-A driver interfaces
and new way of error handling
v1: introduce the sandbox driver
MAINTAINERS | 3 +-
arch/sandbox/dts/sandbox.dtsi | 9 +
arch/sandbox/dts/test.dts | 8 +
arch/sandbox/include/asm/sandbox_arm_ffa.h| 72 ++
.../include/asm/sandbox_arm_ffa_priv.h| 121 +++
configs/sandbox64_defconfig | 1 +
configs/sandbox_defconfig | 1 +
doc/arch/arm64.ffa.rst| 19 +-
doc/arch/sandbox/sandbox.rst | 1 +
drivers/firmware/arm-ffa/Kconfig | 13 +-
drivers/firmware/arm-ffa/Makefile | 10 +-
drivers/firmware/arm-ffa/ffa-emul-uclass.c| 720 ++
.../firmware/arm-ffa/sandbox_arm_ffa_priv.h | 14 -
drivers/firmware/arm-ffa/sandbox_ffa.c| 110 +++
include/dm/uclass-id.h| 1 +
15 files changed, 1081 insertions(+), 22 deletions(-)
create mode 100644 arch/sandbox/include/asm/sandbox_arm_ffa.h
create mode 100644 arch/sandbox/include/asm/sandbox_arm_ffa_priv.h
create mode 100644 drivers/firmware/arm-ffa/ffa-emul-uclass.c
delete mode 100644 drivers/firmware/arm-ffa/sandbox_arm_ffa_priv.h
create mode 100644 drivers/firmware/arm-ffa/sandbox_ffa.c
diff --git a/MAINTAINERS b/MAINTAINERS
index ff6a222960..f8948b7635 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -269,12 +269,13 @@ F:configs/cortina_presidio-asic-pnand_defconfig
ARM FF-A
M: Abdellatif El Khlifi
S: Maintained
+F: arch/sandbox/include/asm/sandbox_arm_ffa.h
+F: arch/sandbox/include/asm/sandbox_arm_ffa_priv.h
F: cmd/armffa.c
F: doc/arch/arm64.ffa.rst
F: doc/usage/cmd/armffa.rst
F: drivers/firmware/arm-ffa/
F: include/arm_ffa.h
-F: include/sandbox_arm_ffa.h
ARM FREESCALE IMX
M: Stefano Babic
diff --git a/arch/sandbox/dts/sandbox.dtsi b/arch/sandbox/dts/sandbox.dtsi
index 30a305c4d2..94a08814b8 100644
--- a/arch/sandbox/dts/sandbox.dtsi
+++ b/arch/sandbox/dts/sandbox.dtsi
@@ -445,6 +445,15 @@
thermal {
compatible = "sandbox,thermal";
};
+
+ arm-ffa-emul {
+ compatible = "sandbox,arm-ffa-emul";
+
+ sandbox-arm-ffa {
+ compatible = "sandbox,arm-ffa";
+ };
+ };
+
};
_ec {
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index ff9f9222e6..96b5404991 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -1820,6 +1820,14 @@
extcon {
compatible = "sandbox,extcon";
};
+
+ arm-ffa-emul {
+ compatible = "sandbox,arm-ffa-emul";
+
+ sandbox-arm-ffa {
+ compatible = "sandbox,arm-ffa";
+ };
+ };
};
#include "sandbox_pmic.dtsi"
diff --git a/arch/sandbox/include/asm/sandbox_arm_ffa.h
b/arch/sandbox/include/asm/sandbox_arm_ffa.h
new file mode 100644
index 00..be2790f496
--- /dev/null
+++ b/arch/sandbox/include/asm/sandbox_arm_ffa.h
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2022-2023 Arm Limited and/or its affiliates
+ *
+ * Authors:
+ * Abdellatif El Khlifi
+ */
+
+#ifndef __SANDBOX_ARM_FFA_H
+#define __SANDBOX_ARM_FFA_H
+
+#include
+
+/*
+ * This header provides public sandbox FF-A emulator declarations
+ * and declarations needed by FF-A sandbox clients
+ */
+
+/* UUIDs strings of the emulated services */
+#define SANDBOX_SERVICE1_UUID
