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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (c) 2019, Linaro Limited
* Copyright (c) 2020-2023, Arm Limited
* Copyright 2022-2023 NXP
*/
#ifndef __LDELF_H
#define __LDELF_H
#ifndef __ASSEMBLER__
#include <types_ext.h>
#include <tee_api_types.h>
#include <user_ta_header.h>
/* Size of stack for TEE Core to allocate */
#define LDELF_STACK_SIZE (4096 * 2)
/*
* struct ldelf_arg - argument for ldelf
* @uuid: [in] UUID of TA to load
* @is_32bit: [out] 1 if a 32bit TA or 0 if a 64bit TA
* @flags: [out] Flags field of TA header
* @entry_func: [out] TA entry function
* @stack_ptr: [out] TA stack pointer
* @dump_entry: [out] Dump TA mappings and stack trace
* @ftrace_entry: [out] Dump TA mappings and ftrace buffer
* @fbuf: [out] ftrace buffer pointer
* @dl_entry: [out] Dynamic linking interface (for libdl)
*/
struct ldelf_arg {
TEE_UUID uuid;
uint32_t is_32bit;
uint32_t flags;
uint64_t entry_func;
uint64_t load_addr;
uint64_t stack_ptr;
uint64_t dump_entry;
uint64_t ftrace_entry;
uint64_t dl_entry;
struct ftrace_buf *fbuf;
};
#define DUMP_MAP_READ BIT(0)
#define DUMP_MAP_WRITE BIT(1)
#define DUMP_MAP_EXEC BIT(2)
#define DUMP_MAP_SECURE BIT(3)
#define DUMP_MAP_EPHEM BIT(4)
#define DUMP_MAP_LDELF BIT(7)
/*
* struct dump_entry_arg - argument for ldelf_arg::dump_entry()
*/
struct dump_entry_arg {
union {
struct {
uint32_t regs[16];
} arm32;
struct {
uint64_t fp;
uint64_t sp;
uint64_t pc;
} arm64;
struct {
unsigned long fp;
unsigned long sp;
unsigned long pc;
} rv;
};
bool is_32bit;
size_t num_maps;
struct dump_map {
vaddr_t va;
paddr_t pa;
size_t sz;
uint32_t flags;
} maps[];
};
/*
* struct dl_entry_arg - argument for ldelf_arg::dl_entry()
*/
struct dl_entry_arg {
uint32_t cmd;
TEE_Result ret;
union {
struct {
TEE_UUID uuid; /* in */
uint32_t flags; /* in */
} dlopen;
struct {
TEE_UUID uuid; /* in */
vaddr_t val; /* out */
char symbol[]; /* in */
} dlsym;
};
};
/*
* Values for dl_entry_arg::cmd
*/
#define LDELF_DL_ENTRY_DLOPEN 0
#define LDELF_DL_ENTRY_DLSYM 1
/*
* Values for dl_entry_arg::dlopen::flags
*/
#define RTLD_NOW 2
#define RTLD_GLOBAL 0x100
#define RTLD_NODELETE 0x1000
#define LDELF_MAP_FLAG_SHAREABLE BIT32(0)
#define LDELF_MAP_FLAG_WRITEABLE BIT32(1)
#define LDELF_MAP_FLAG_EXECUTABLE BIT32(2)
#define LDELF_MAP_FLAG_BTI BIT32(3)
#endif /*!__ASSEMBLER__*/
#define LDELF_RETURN 0
#define LDELF_LOG 1
#define LDELF_PANIC 2
#define LDELF_MAP_ZI 3
#define LDELF_UNMAP 4
#define LDELF_OPEN_BIN 5
#define LDELF_CLOSE_BIN 6
#define LDELF_MAP_BIN 7
#define LDELF_CP_FROM_BIN 8
#define LDELF_SET_PROT 9
#define LDELF_REMAP 10
#define LDELF_GEN_RND_NUM 11
#define LDELF_SCN_MAX 11
/*
* ldelf is loaded into memory by TEE Core. BSS is initialized and a
* stack is allocated and supplied in SP register. A struct ldelf_arg
* is placed in the stack and a pointer to the struct is provided in
* r0/x0 on ARM and in a0/x10 on RISC-V.
*
* ldelf relocates itself to the address where it is loaded before the main
* C routine is called.
*
* In the main C routine the TA is loaded using the PTA System interface.
*/
#endif /*__LDELF_H*/
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