Adding upstream version 2.8.0+dfsg.upstream/2.8.0+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 162 insertions, 0 deletions

diff --git a/services/spd/opteed/opteed_private.h b/services/spd/opteed/opteed_private.h
new file mode 100644
index 0000000..242154f
--- /dev/null
+++ b/services/spd/opteed/opteed_private.h
@@ -0,0 +1,162 @@
+/*
+ * Copyright (c) 2013-2017, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef OPTEED_PRIVATE_H
+#define OPTEED_PRIVATE_H
+
+#include <platform_def.h>
+
+#include <arch.h>
+#include <bl31/interrupt_mgmt.h>
+#include <context.h>
+#include <lib/psci/psci.h>
+
+/*******************************************************************************
+ * OPTEE PM state information e.g. OPTEE is suspended, uninitialised etc
+ * and macros to access the state information in the per-cpu 'state' flags
+ ******************************************************************************/
+#define OPTEE_PSTATE_OFF		0
+#define OPTEE_PSTATE_ON			1
+#define OPTEE_PSTATE_SUSPEND		2
+#define OPTEE_PSTATE_SHIFT		0
+#define OPTEE_PSTATE_MASK		0x3
+#define get_optee_pstate(state)	((state >> OPTEE_PSTATE_SHIFT) & \
+				 OPTEE_PSTATE_MASK)
+#define clr_optee_pstate(state)	(state &= ~(OPTEE_PSTATE_MASK \
+					    << OPTEE_PSTATE_SHIFT))
+#define set_optee_pstate(st, pst) do {					       \
+					clr_optee_pstate(st);		       \
+					st |= (pst & OPTEE_PSTATE_MASK) <<     \
+						OPTEE_PSTATE_SHIFT;	       \
+				} while (0)
+
+
+/*******************************************************************************
+ * OPTEE execution state information i.e. aarch32 or aarch64
+ ******************************************************************************/
+#define OPTEE_AARCH32		MODE_RW_32
+#define OPTEE_AARCH64		MODE_RW_64
+
+/*******************************************************************************
+ * The OPTEED should know the type of OPTEE
+ ******************************************************************************/
+#define OPTEE_TYPE_UP		PSCI_TOS_NOT_UP_MIG_CAP
+#define OPTEE_TYPE_UPM		PSCI_TOS_UP_MIG_CAP
+#define OPTEE_TYPE_MP		PSCI_TOS_NOT_PRESENT_MP
+
+/*******************************************************************************
+ * OPTEE migrate type information as known to the OPTEED. We assume that
+ * the OPTEED is dealing with an MP Secure Payload.
+ ******************************************************************************/
+#define OPTEE_MIGRATE_INFO		OPTEE_TYPE_MP
+
+/*******************************************************************************
+ * Number of cpus that the present on this platform. TODO: Rely on a topology
+ * tree to determine this in the future to avoid assumptions about mpidr
+ * allocation
+ ******************************************************************************/
+#define OPTEED_CORE_COUNT		PLATFORM_CORE_COUNT
+
+/*******************************************************************************
+ * Constants that allow assembler code to preserve callee-saved registers of the
+ * C runtime context while performing a security state switch.
+ ******************************************************************************/
+#define OPTEED_C_RT_CTX_X19		0x0
+#define OPTEED_C_RT_CTX_X20		0x8
+#define OPTEED_C_RT_CTX_X21		0x10
+#define OPTEED_C_RT_CTX_X22		0x18
+#define OPTEED_C_RT_CTX_X23		0x20
+#define OPTEED_C_RT_CTX_X24		0x28
+#define OPTEED_C_RT_CTX_X25		0x30
+#define OPTEED_C_RT_CTX_X26		0x38
+#define OPTEED_C_RT_CTX_X27		0x40
+#define OPTEED_C_RT_CTX_X28		0x48
+#define OPTEED_C_RT_CTX_X29		0x50
+#define OPTEED_C_RT_CTX_X30		0x58
+#define OPTEED_C_RT_CTX_SIZE		0x60
+#define OPTEED_C_RT_CTX_ENTRIES		(OPTEED_C_RT_CTX_SIZE >> DWORD_SHIFT)
+
+#ifndef __ASSEMBLER__
+
+#include <stdint.h>
+
+#include <lib/cassert.h>
+
+typedef uint32_t optee_vector_isn_t;
+
+typedef struct optee_vectors {
+	optee_vector_isn_t yield_smc_entry;
+	optee_vector_isn_t fast_smc_entry;
+	optee_vector_isn_t cpu_on_entry;
+	optee_vector_isn_t cpu_off_entry;
+	optee_vector_isn_t cpu_resume_entry;
+	optee_vector_isn_t cpu_suspend_entry;
+	optee_vector_isn_t fiq_entry;
+	optee_vector_isn_t system_off_entry;
+	optee_vector_isn_t system_reset_entry;
+} optee_vectors_t;
+
+/*
+ * The number of arguments to save during a SMC call for OPTEE.
+ * Currently only x1 and x2 are used by OPTEE.
+ */
+#define OPTEE_NUM_ARGS	0x2
+
+/* AArch64 callee saved general purpose register context structure. */
+DEFINE_REG_STRUCT(c_rt_regs, OPTEED_C_RT_CTX_ENTRIES);
+
+/*
+ * Compile time assertion to ensure that both the compiler and linker
+ * have the same double word aligned view of the size of the C runtime
+ * register context.
+ */
+CASSERT(OPTEED_C_RT_CTX_SIZE == sizeof(c_rt_regs_t),	\
+	assert_spd_c_rt_regs_size_mismatch);
+
+/*******************************************************************************
+ * Structure which helps the OPTEED to maintain the per-cpu state of OPTEE.
+ * 'state'          - collection of flags to track OPTEE state e.g. on/off
+ * 'mpidr'          - mpidr to associate a context with a cpu
+ * 'c_rt_ctx'       - stack address to restore C runtime context from after
+ *                    returning from a synchronous entry into OPTEE.
+ * 'cpu_ctx'        - space to maintain OPTEE architectural state
+ ******************************************************************************/
+typedef struct optee_context {
+	uint32_t state;
+	uint64_t mpidr;
+	uint64_t c_rt_ctx;
+	cpu_context_t cpu_ctx;
+} optee_context_t;
+
+/* OPTEED power management handlers */
+extern const spd_pm_ops_t opteed_pm;
+
+/*******************************************************************************
+ * Forward declarations
+ ******************************************************************************/
+struct optee_vectors;
+
+/*******************************************************************************
+ * Function & Data prototypes
+ ******************************************************************************/
+uint64_t opteed_enter_sp(uint64_t *c_rt_ctx);
+void __dead2 opteed_exit_sp(uint64_t c_rt_ctx, uint64_t ret);
+uint64_t opteed_synchronous_sp_entry(optee_context_t *optee_ctx);
+void __dead2 opteed_synchronous_sp_exit(optee_context_t *optee_ctx, uint64_t ret);
+void opteed_init_optee_ep_state(struct entry_point_info *optee_entry_point,
+				uint32_t rw,
+				uint64_t pc,
+				uint64_t pageable_part,
+				uint64_t mem_limit,
+				uint64_t dt_addr,
+				optee_context_t *optee_ctx);
+
+extern optee_context_t opteed_sp_context[OPTEED_CORE_COUNT];
+extern uint32_t opteed_rw;
+extern struct optee_vectors *optee_vector_table;
+#endif /*__ASSEMBLER__*/
+
+#endif /* OPTEED_PRIVATE_H */