/* * QEMU ARM CPU -- syndrome functions and types * * Copyright (c) 2014 Linaro Ltd * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see * <http://www.gnu.org/licenses/gpl-2.0.html> * * This header defines functions, types, etc which need to be shared * between different source files within target/arm/ but which are * private to it and not required by the rest of QEMU. */ #ifndef TARGET_ARM_SYNDROME_H #define TARGET_ARM_SYNDROME_H /* Valid Syndrome Register EC field values */ enum arm_exception_class { EC_UNCATEGORIZED = 0x00, EC_WFX_TRAP = 0x01, EC_CP15RTTRAP = 0x03, EC_CP15RRTTRAP = 0x04, EC_CP14RTTRAP = 0x05, EC_CP14DTTRAP = 0x06, EC_ADVSIMDFPACCESSTRAP = 0x07, EC_FPIDTRAP = 0x08, EC_PACTRAP = 0x09, EC_CP14RRTTRAP = 0x0c, EC_BTITRAP = 0x0d, EC_ILLEGALSTATE = 0x0e, EC_AA32_SVC = 0x11, EC_AA32_HVC = 0x12, EC_AA32_SMC = 0x13, EC_AA64_SVC = 0x15, EC_AA64_HVC = 0x16, EC_AA64_SMC = 0x17, EC_SYSTEMREGISTERTRAP = 0x18, EC_SVEACCESSTRAP = 0x19, EC_INSNABORT = 0x20, EC_INSNABORT_SAME_EL = 0x21, EC_PCALIGNMENT = 0x22, EC_DATAABORT = 0x24, EC_DATAABORT_SAME_EL = 0x25, EC_SPALIGNMENT = 0x26, EC_AA32_FPTRAP = 0x28, EC_AA64_FPTRAP = 0x2c, EC_SERROR = 0x2f, EC_BREAKPOINT = 0x30, EC_BREAKPOINT_SAME_EL = 0x31, EC_SOFTWARESTEP = 0x32, EC_SOFTWARESTEP_SAME_EL = 0x33, EC_WATCHPOINT = 0x34, EC_WATCHPOINT_SAME_EL = 0x35, EC_AA32_BKPT = 0x38, EC_VECTORCATCH = 0x3a, EC_AA64_BKPT = 0x3c, }; #define ARM_EL_EC_SHIFT 26 #define ARM_EL_IL_SHIFT 25 #define ARM_EL_ISV_SHIFT 24 #define ARM_EL_IL (1 << ARM_EL_IL_SHIFT) #define ARM_EL_ISV (1 << ARM_EL_ISV_SHIFT) static inline uint32_t syn_get_ec(uint32_t syn) { return syn >> ARM_EL_EC_SHIFT; } /* * Utility functions for constructing various kinds of syndrome value. * Note that in general we follow the AArch64 syndrome values; in a * few cases the value in HSR for exceptions taken to AArch32 Hyp * mode differs slightly, and we fix this up when populating HSR in * arm_cpu_do_interrupt_aarch32_hyp(). * The exception is FP/SIMD access traps -- these report extra information * when taking an exception to AArch32. For those we include the extra coproc * and TA fields, and mask them out when taking the exception to AArch64. */ static inline uint32_t syn_uncategorized(void) { return (EC_UNCATEGORIZED << ARM_EL_EC_SHIFT) | ARM_EL_IL; } static inline uint32_t syn_aa64_svc(uint32_t imm16) { return (EC_AA64_SVC << ARM_EL_EC_SHIFT) | ARM_EL_IL | (imm16 & 0xffff); } static inline uint32_t syn_aa64_hvc(uint32_t imm16) { return (EC_AA64_HVC << ARM_EL_EC_SHIFT) | ARM_EL_IL | (imm16 & 0xffff); } static inline uint32_t syn_aa64_smc(uint32_t imm16) { return (EC_AA64_SMC << ARM_EL_EC_SHIFT) | ARM_EL_IL | (imm16 & 0xffff); } static inline uint32_t syn_aa32_svc(uint32_t imm16, bool is_16bit) { return (EC_AA32_SVC << ARM_EL_EC_SHIFT) | (imm16 & 0xffff) | (is_16bit ? 0 : ARM_EL_IL); } static inline uint32_t syn_aa32_hvc(uint32_t imm16) { return (EC_AA32_HVC << ARM_EL_EC_SHIFT) | ARM_EL_IL | (imm16 & 0xffff); } static inline uint32_t syn_aa32_smc(void) { return (EC_AA32_SMC << ARM_EL_EC_SHIFT) | ARM_EL_IL; } static inline uint32_t syn_aa64_bkpt(uint32_t imm16) { return (EC_AA64_BKPT << ARM_EL_EC_SHIFT) | ARM_EL_IL | (imm16 & 0xffff); } static inline uint32_t syn_aa32_bkpt(uint32_t imm16, bool is_16bit) { return (EC_AA32_BKPT << ARM_EL_EC_SHIFT) | (imm16 & 0xffff) | (is_16bit ? 0 : ARM_EL_IL); } static inline uint32_t syn_aa64_sysregtrap(int op0, int op1, int op2, int crn, int crm, int rt, int isread) { return (EC_SYSTEMREGISTERTRAP << ARM_EL_EC_SHIFT) | ARM_EL_IL | (op0 << 20) | (op2 << 17) | (op1 << 14) | (crn << 10) | (rt << 5) | (crm << 1) | isread; } static inline uint32_t syn_cp14_rt_trap(int cv, int cond, int opc1, int opc2, int crn, int crm, int rt, int isread, bool is_16bit) { return (EC_CP14RTTRAP << ARM_EL_EC_SHIFT) | (is_16bit ? 0 : ARM_EL_IL) | (cv << 24) | (cond << 20) | (opc2 << 17) | (opc1 << 14) | (crn << 10) | (rt << 5) | (crm << 1) | isread; } static inline uint32_t syn_cp15_rt_trap(int cv, int cond, int opc1, int opc2, int crn, int crm, int rt, int isread, bool is_16bit) { return (EC_CP15RTTRAP << ARM_EL_EC_SHIFT) | (is_16bit ? 0 : ARM_EL_IL) | (cv << 24) | (cond << 20) | (opc2 << 17) | (opc1 << 14) | (crn << 10) | (rt << 5) | (crm << 1) | isread; } static inline uint32_t syn_cp14_rrt_trap(int cv, int cond, int opc1, int crm, int rt, int rt2, int isread, bool is_16bit) { return (EC_CP14RRTTRAP << ARM_EL_EC_SHIFT) | (is_16bit ? 0 : ARM_EL_IL) | (cv << 24) | (cond << 20) | (opc1 << 16) | (rt2 << 10) | (rt << 5) | (crm << 1) | isread; } static inline uint32_t syn_cp15_rrt_trap(int cv, int cond, int opc1, int crm, int rt, int rt2, int isread, bool is_16bit) { return (EC_CP15RRTTRAP << ARM_EL_EC_SHIFT) | (is_16bit ? 0 : ARM_EL_IL) | (cv << 24) | (cond << 20) | (opc1 << 16) | (rt2 << 10) | (rt << 5) | (crm << 1) | isread; } static inline uint32_t syn_fp_access_trap(int cv, int cond, bool is_16bit) { /* AArch32 FP trap or any AArch64 FP/SIMD trap: TA == 0 coproc == 0xa */ return (EC_ADVSIMDFPACCESSTRAP << ARM_EL_EC_SHIFT) | (is_16bit ? 0 : ARM_EL_IL) | (cv << 24) | (cond << 20) | 0xa; } static inline uint32_t syn_simd_access_trap(int cv, int cond, bool is_16bit) { /* AArch32 SIMD trap: TA == 1 coproc == 0 */ return (EC_ADVSIMDFPACCESSTRAP << ARM_EL_EC_SHIFT) | (is_16bit ? 0 : ARM_EL_IL) | (cv << 24) | (cond << 20) | (1 << 5); } static inline uint32_t syn_sve_access_trap(void) { return EC_SVEACCESSTRAP << ARM_EL_EC_SHIFT; } static inline uint32_t syn_pactrap(void) { return EC_PACTRAP << ARM_EL_EC_SHIFT; } static inline uint32_t syn_btitrap(int btype) { return (EC_BTITRAP << ARM_EL_EC_SHIFT) | btype; } static inline uint32_t syn_insn_abort(int same_el, int ea, int s1ptw, int fsc) { return (EC_INSNABORT << ARM_EL_EC_SHIFT) | (same_el << ARM_EL_EC_SHIFT) | ARM_EL_IL | (ea << 9) | (s1ptw << 7) | fsc; } static inline uint32_t syn_data_abort_no_iss(int same_el, int fnv, int ea, int cm, int s1ptw, int wnr, int fsc) { return (EC_DATAABORT << ARM_EL_EC_SHIFT) | (same_el << ARM_EL_EC_SHIFT) | ARM_EL_IL | (fnv << 10) | (ea << 9) | (cm << 8) | (s1ptw << 7) | (wnr << 6) | fsc; } static inline uint32_t syn_data_abort_with_iss(int same_el, int sas, int sse, int srt, int sf, int ar, int ea, int cm, int s1ptw, int wnr, int fsc, bool is_16bit) { return (EC_DATAABORT << ARM_EL_EC_SHIFT) | (same_el << ARM_EL_EC_SHIFT) | (is_16bit ? 0 : ARM_EL_IL) | ARM_EL_ISV | (sas << 22) | (sse << 21) | (srt << 16) | (sf << 15) | (ar << 14) | (ea << 9) | (cm << 8) | (s1ptw << 7) | (wnr << 6) | fsc; } static inline uint32_t syn_swstep(int same_el, int isv, int ex) { return (EC_SOFTWARESTEP << ARM_EL_EC_SHIFT) | (same_el << ARM_EL_EC_SHIFT) | ARM_EL_IL | (isv << 24) | (ex << 6) | 0x22; } static inline uint32_t syn_watchpoint(int same_el, int cm, int wnr) { return (EC_WATCHPOINT << ARM_EL_EC_SHIFT) | (same_el << ARM_EL_EC_SHIFT) | ARM_EL_IL | (cm << 8) | (wnr << 6) | 0x22; } static inline uint32_t syn_breakpoint(int same_el) { return (EC_BREAKPOINT << ARM_EL_EC_SHIFT) | (same_el << ARM_EL_EC_SHIFT) | ARM_EL_IL | 0x22; } static inline uint32_t syn_wfx(int cv, int cond, int ti, bool is_16bit) { return (EC_WFX_TRAP << ARM_EL_EC_SHIFT) | (is_16bit ? 0 : (1 << ARM_EL_IL_SHIFT)) | (cv << 24) | (cond << 20) | ti; } #endif /* TARGET_ARM_SYNDROME_H */