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/** @file
RISC-V Exception Handler library definition file.
Copyright (c) 2019-2022, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef RISCV_CPU_EXECPTION_HANDLER_LIB_H_
#define RISCV_CPU_EXECPTION_HANDLER_LIB_H_
#include <Register/RiscV64/RiscVImpl.h>
/**
Trap Handler for S-mode
**/
VOID
SupervisorModeTrap (
VOID
);
//
// Index of SMode trap register
//
#define SMODE_TRAP_REGS_zero 0
#define SMODE_TRAP_REGS_ra 1
#define SMODE_TRAP_REGS_sp 2
#define SMODE_TRAP_REGS_gp 3
#define SMODE_TRAP_REGS_tp 4
#define SMODE_TRAP_REGS_t0 5
#define SMODE_TRAP_REGS_t1 6
#define SMODE_TRAP_REGS_t2 7
#define SMODE_TRAP_REGS_s0 8
#define SMODE_TRAP_REGS_s1 9
#define SMODE_TRAP_REGS_a0 10
#define SMODE_TRAP_REGS_a1 11
#define SMODE_TRAP_REGS_a2 12
#define SMODE_TRAP_REGS_a3 13
#define SMODE_TRAP_REGS_a4 14
#define SMODE_TRAP_REGS_a5 15
#define SMODE_TRAP_REGS_a6 16
#define SMODE_TRAP_REGS_a7 17
#define SMODE_TRAP_REGS_s2 18
#define SMODE_TRAP_REGS_s3 19
#define SMODE_TRAP_REGS_s4 20
#define SMODE_TRAP_REGS_s5 21
#define SMODE_TRAP_REGS_s6 22
#define SMODE_TRAP_REGS_s7 23
#define SMODE_TRAP_REGS_s8 24
#define SMODE_TRAP_REGS_s9 25
#define SMODE_TRAP_REGS_s10 26
#define SMODE_TRAP_REGS_s11 27
#define SMODE_TRAP_REGS_t3 28
#define SMODE_TRAP_REGS_t4 29
#define SMODE_TRAP_REGS_t5 30
#define SMODE_TRAP_REGS_t6 31
#define SMODE_TRAP_REGS_sepc 32
#define SMODE_TRAP_REGS_sstatus 33
#define SMODE_TRAP_REGS_sie 34
#define SMODE_TRAP_REGS_last 35
#define SMODE_TRAP_REGS_OFFSET(x) ((SMODE_TRAP_REGS_##x) * __SIZEOF_POINTER__)
#define SMODE_TRAP_REGS_SIZE SMODE_TRAP_REGS_OFFSET(last)
#pragma pack(1)
typedef struct {
//
// Below are follow the format of EFI_SYSTEM_CONTEXT
//
UINT64 zero;
UINT64 ra;
UINT64 sp;
UINT64 gp;
UINT64 tp;
UINT64 t0;
UINT64 t1;
UINT64 t2;
UINT64 s0;
UINT64 s1;
UINT64 a0;
UINT64 a1;
UINT64 a2;
UINT64 a3;
UINT64 a4;
UINT64 a5;
UINT64 a6;
UINT64 a7;
UINT64 s2;
UINT64 s3;
UINT64 s4;
UINT64 s5;
UINT64 s6;
UINT64 s7;
UINT64 s8;
UINT64 s9;
UINT64 s10;
UINT64 s11;
UINT64 t3;
UINT64 t4;
UINT64 t5;
UINT64 t6;
//
// Below are the additional information to
// EFI_SYSTEM_CONTEXT, private to supervisor mode trap
// and not public to EFI environment.
//
UINT64 sepc;
UINT64 sstatus;
UINT64 sie;
} SMODE_TRAP_REGISTERS;
#pragma pack()
#endif
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