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95f7f6d86a
This patch enables FF-A secure partitions and the SPMC to query EL3 SPMD logical partitions that are present in the system via partition get info regs abi. Note that normal world will not be able to see EL3 SPMD logical partitions as per the spec. Signed-off-by: Raghu Krishnamurthy <raghu.ncstate@gmail.com> Change-Id: I3fca8aed8ae156a559a74521803324c13ae3d55a
115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
/*
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* Copyright (c) 2019-2023, Arm Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef SPMD_PRIVATE_H
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#define SPMD_PRIVATE_H
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#include <common/bl_common.h>
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#include <context.h>
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/*******************************************************************************
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* Constants that allow assembler code to preserve callee-saved registers of the
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* C runtime context while performing a security state switch.
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******************************************************************************/
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#define SPMD_C_RT_CTX_X19 0x0
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#define SPMD_C_RT_CTX_X20 0x8
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#define SPMD_C_RT_CTX_X21 0x10
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#define SPMD_C_RT_CTX_X22 0x18
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#define SPMD_C_RT_CTX_X23 0x20
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#define SPMD_C_RT_CTX_X24 0x28
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#define SPMD_C_RT_CTX_X25 0x30
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#define SPMD_C_RT_CTX_X26 0x38
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#define SPMD_C_RT_CTX_X27 0x40
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#define SPMD_C_RT_CTX_X28 0x48
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#define SPMD_C_RT_CTX_X29 0x50
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#define SPMD_C_RT_CTX_X30 0x58
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#define SPMD_C_RT_CTX_SIZE 0x60
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#define SPMD_C_RT_CTX_ENTRIES (SPMD_C_RT_CTX_SIZE >> DWORD_SHIFT)
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#ifndef __ASSEMBLER__
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#include <stdint.h>
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#include <lib/psci/psci_lib.h>
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#include <plat/common/platform.h>
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#include <services/ffa_svc.h>
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typedef enum spmc_state {
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SPMC_STATE_RESET = 0,
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SPMC_STATE_OFF,
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SPMC_STATE_ON_PENDING,
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SPMC_STATE_ON
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} spmc_state_t;
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/*
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* Data structure used by the SPM dispatcher (SPMD) in EL3 to track context of
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* the SPM core (SPMC) at the next lower EL.
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*/
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typedef struct spmd_spm_core_context {
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uint64_t c_rt_ctx;
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cpu_context_t cpu_ctx;
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spmc_state_t state;
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bool secure_interrupt_ongoing;
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#if ENABLE_SPMD_LP
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uint8_t spmd_lp_sync_req_ongoing;
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#endif
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} spmd_spm_core_context_t;
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/* Flags to indicate ongoing requests for SPMD EL3 logical partitions */
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#define SPMD_LP_FFA_DIR_REQ_ONGOING U(0x1)
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#define SPMD_LP_FFA_INFO_GET_REG_ONGOING U(0x2)
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/*
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* Reserve ID for NS physical FFA Endpoint.
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*/
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#define FFA_NS_ENDPOINT_ID U(0)
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/* Define SPMD target function IDs for framework messages to the SPMC */
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#define SPMD_FWK_MSG_FFA_VERSION_REQ U(0x8)
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#define SPMD_FWK_MSG_FFA_VERSION_RESP U(0x9)
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/* Function to build SPMD to SPMC message */
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void spmd_build_spmc_message(gp_regs_t *gpregs, uint8_t target,
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unsigned long long message);
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/* Functions used to enter/exit SPMC synchronously */
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uint64_t spmd_spm_core_sync_entry(spmd_spm_core_context_t *ctx);
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__dead2 void spmd_spm_core_sync_exit(uint64_t rc);
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/* Assembly helpers */
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uint64_t spmd_spm_core_enter(uint64_t *c_rt_ctx);
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void __dead2 spmd_spm_core_exit(uint64_t c_rt_ctx, uint64_t ret);
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/* SPMD SPD power management handlers */
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extern const spd_pm_ops_t spmd_pm;
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/* SPMC entry point information helper */
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entry_point_info_t *spmd_spmc_ep_info_get(void);
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/* SPMC ID getter */
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uint16_t spmd_spmc_id_get(void);
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/* SPMC context on CPU based on mpidr */
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spmd_spm_core_context_t *spmd_get_context_by_mpidr(uint64_t mpidr);
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/* SPMC context on current CPU get helper */
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spmd_spm_core_context_t *spmd_get_context(void);
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int spmd_pm_secondary_ep_register(uintptr_t entry_point);
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bool spmd_check_address_in_binary_image(uint64_t address);
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/*
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* Platform hook in EL3 firmware to handle for Group0 secure interrupt.
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* Return values:
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* 0 = success
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* otherwise it returns a negative value
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*/
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int plat_spmd_handle_group0_interrupt(uint32_t id);
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uint64_t spmd_ffa_error_return(void *handle, int error_code);
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#endif /* __ASSEMBLER__ */
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#endif /* SPMD_PRIVATE_H */
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