diff options
Diffstat (limited to 'services/std_svc/spmd/spmd_private.h')
| -rw-r--r-- | services/std_svc/spmd/spmd_private.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/services/std_svc/spmd/spmd_private.h b/services/std_svc/spmd/spmd_private.h new file mode 100644 index 0000000..d21a622 --- /dev/null +++ b/services/std_svc/spmd/spmd_private.h @@ -0,0 +1,98 @@ +/* + * Copyright (c) 2019-2022, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef SPMD_PRIVATE_H +#define SPMD_PRIVATE_H + +#include <common/bl_common.h> +#include <context.h> + +/******************************************************************************* + * Constants that allow assembler code to preserve callee-saved registers of the + * C runtime context while performing a security state switch. + ******************************************************************************/ +#define SPMD_C_RT_CTX_X19 0x0 +#define SPMD_C_RT_CTX_X20 0x8 +#define SPMD_C_RT_CTX_X21 0x10 +#define SPMD_C_RT_CTX_X22 0x18 +#define SPMD_C_RT_CTX_X23 0x20 +#define SPMD_C_RT_CTX_X24 0x28 +#define SPMD_C_RT_CTX_X25 0x30 +#define SPMD_C_RT_CTX_X26 0x38 +#define SPMD_C_RT_CTX_X27 0x40 +#define SPMD_C_RT_CTX_X28 0x48 +#define SPMD_C_RT_CTX_X29 0x50 +#define SPMD_C_RT_CTX_X30 0x58 + +#define SPMD_C_RT_CTX_SIZE 0x60 +#define SPMD_C_RT_CTX_ENTRIES (SPMD_C_RT_CTX_SIZE >> DWORD_SHIFT) + +#ifndef __ASSEMBLER__ +#include <stdint.h> +#include <lib/psci/psci_lib.h> +#include <plat/common/platform.h> +#include <services/ffa_svc.h> + +typedef enum spmc_state { + SPMC_STATE_RESET = 0, + SPMC_STATE_OFF, + SPMC_STATE_ON_PENDING, + SPMC_STATE_ON +} spmc_state_t; + +/* + * Data structure used by the SPM dispatcher (SPMD) in EL3 to track context of + * the SPM core (SPMC) at the next lower EL. + */ +typedef struct spmd_spm_core_context { + uint64_t c_rt_ctx; + cpu_context_t cpu_ctx; + spmc_state_t state; + bool secure_interrupt_ongoing; +} spmd_spm_core_context_t; + +/* + * Reserve ID for NS physical FFA Endpoint. + */ +#define FFA_NS_ENDPOINT_ID U(0) + +/* Define SPMD target function IDs for framework messages to the SPMC */ +#define SPMD_FWK_MSG_FFA_VERSION_REQ U(0x8) +#define SPMD_FWK_MSG_FFA_VERSION_RESP U(0x9) + +/* Function to build SPMD to SPMC message */ +void spmd_build_spmc_message(gp_regs_t *gpregs, uint8_t target, + unsigned long long message); + +/* Functions used to enter/exit SPMC synchronously */ +uint64_t spmd_spm_core_sync_entry(spmd_spm_core_context_t *ctx); +__dead2 void spmd_spm_core_sync_exit(uint64_t rc); + +/* Assembly helpers */ +uint64_t spmd_spm_core_enter(uint64_t *c_rt_ctx); +void __dead2 spmd_spm_core_exit(uint64_t c_rt_ctx, uint64_t ret); + +/* SPMD SPD power management handlers */ +extern const spd_pm_ops_t spmd_pm; + +/* SPMC entry point information helper */ +entry_point_info_t *spmd_spmc_ep_info_get(void); + +/* SPMC ID getter */ +uint16_t spmd_spmc_id_get(void); + +/* SPMC context on CPU based on mpidr */ +spmd_spm_core_context_t *spmd_get_context_by_mpidr(uint64_t mpidr); + +/* SPMC context on current CPU get helper */ +spmd_spm_core_context_t *spmd_get_context(void); + +int spmd_pm_secondary_ep_register(uintptr_t entry_point); +bool spmd_check_address_in_binary_image(uint64_t address); + +#endif /* __ASSEMBLER__ */ + +#endif /* SPMD_PRIVATE_H */ |