[v7,09/11] target/xtensa: add linux-user support

Message ID	20180316165722.26560-1-jcmvbkbc@gmail.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org> From: Max Filippov <jcmvbkbc@gmail.com> To: qemu-devel@nongnu.org Date: Fri, 16 Mar 2018 09:57:22 -0700 Message-Id: <20180316165722.26560-1-jcmvbkbc@gmail.com> Subject: [Qemu-devel] [PATCH v7 09/11] target/xtensa: add linux-user support Precedence: list Cc: Max Filippov <jcmvbkbc@gmail.com>, Riku Voipio <riku.voipio@iki.fi>, Laurent Vivier <laurent@vivier.eu> Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org>

diff --git a/default-configs/xtensa-linux-user.mak b/default-configs/xtensa-linux-user.mak new file mode 100644 index 000000000000..fd1d350ee944 --- /dev/null +++ b/default-configs/xtensa-linux-user.mak @@ -0,0 +1 @@ +# Default configuration for xtensa-linux-user diff --git a/default-configs/xtensaeb-linux-user.mak b/default-configs/xtensaeb-linux-user.mak new file mode 100644 index 000000000000..fd1d350ee944 --- /dev/null +++ b/default-configs/xtensaeb-linux-user.mak @@ -0,0 +1 @@ +# Default configuration for xtensa-linux-user diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 5fc130cc20ca..fe7a5bc5663b 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -1341,6 +1341,64 @@ static inline void init_thread(struct target_pt_regs *regs, #endif /* TARGET_HPPA */ +#ifdef TARGET_XTENSA + +#define ELF_START_MMAP 0x20000000 + +#define ELF_CLASS ELFCLASS32 +#define ELF_ARCH EM_XTENSA + +static inline void init_thread(struct target_pt_regs *regs, + struct image_info *infop) +{ + regs->windowbase = 0; + regs->windowstart = 1; + regs->areg[1] = infop->start_stack; + regs->pc = infop->entry; +} + +/* See linux kernel: arch/xtensa/include/asm/elf.h. */ +#define ELF_NREG 128 +typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; + +enum { + TARGET_REG_PC, + TARGET_REG_PS, + TARGET_REG_LBEG, + TARGET_REG_LEND, + TARGET_REG_LCOUNT, + TARGET_REG_SAR, + TARGET_REG_WINDOWSTART, + TARGET_REG_WINDOWBASE, + TARGET_REG_THREADPTR, + TARGET_REG_AR0 = 64, +}; + +static void elf_core_copy_regs(target_elf_gregset_t *regs, + const CPUXtensaState *env) +{ + unsigned i; + + (*regs)[TARGET_REG_PC] = tswapreg(env->pc); + (*regs)[TARGET_REG_PS] = tswapreg(env->sregs[PS] & ~PS_EXCM); + (*regs)[TARGET_REG_LBEG] = tswapreg(env->sregs[LBEG]); + (*regs)[TARGET_REG_LEND] = tswapreg(env->sregs[LEND]); + (*regs)[TARGET_REG_LCOUNT] = tswapreg(env->sregs[LCOUNT]); + (*regs)[TARGET_REG_SAR] = tswapreg(env->sregs[SAR]); + (*regs)[TARGET_REG_WINDOWSTART] = tswapreg(env->sregs[WINDOW_START]); + (*regs)[TARGET_REG_WINDOWBASE] = tswapreg(env->sregs[WINDOW_BASE]); + (*regs)[TARGET_REG_THREADPTR] = tswapreg(env->uregs[THREADPTR]); + xtensa_sync_phys_from_window((CPUXtensaState *)env); + for (i = 0; i < env->config->nareg; ++i) { + (*regs)[TARGET_REG_AR0 + i] = tswapreg(env->phys_regs[i]); + } +} + +#define USE_ELF_CORE_DUMP +#define ELF_EXEC_PAGESIZE 4096 + +#endif /* TARGET_XTENSA */ + #ifndef ELF_PLATFORM #define ELF_PLATFORM (NULL) #endif diff --git a/linux-user/main.c b/linux-user/main.c index 7bc9bc79b052..25b4dfdbcb7a 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -3930,6 +3930,242 @@ void cpu_loop(CPUHPPAState *env) #endif /* TARGET_HPPA */ +#ifdef TARGET_XTENSA + +static void xtensa_rfw(CPUXtensaState *env) +{ + xtensa_restore_owb(env); + env->pc = env->sregs[EPC1]; +} + +static void xtensa_rfwu(CPUXtensaState *env) +{ + env->sregs[WINDOW_START] |= (1 << env->sregs[WINDOW_BASE]); + xtensa_rfw(env); +} + +static void xtensa_rfwo(CPUXtensaState *env) +{ + env->sregs[WINDOW_START] &= ~(1 << env->sregs[WINDOW_BASE]); + xtensa_rfw(env); +} + +static void xtensa_overflow4(CPUXtensaState *env) +{ + put_user_ual(env->regs[0], env->regs[5] - 16); + put_user_ual(env->regs[1], env->regs[5] - 12); + put_user_ual(env->regs[2], env->regs[5] - 8); + put_user_ual(env->regs[3], env->regs[5] - 4); + xtensa_rfwo(env); +} + +static void xtensa_underflow4(CPUXtensaState *env) +{ + get_user_ual(env->regs[0], env->regs[5] - 16); + get_user_ual(env->regs[1], env->regs[5] - 12); + get_user_ual(env->regs[2], env->regs[5] - 8); + get_user_ual(env->regs[3], env->regs[5] - 4); + xtensa_rfwu(env); +} + +static void xtensa_overflow8(CPUXtensaState *env) +{ + put_user_ual(env->regs[0], env->regs[9] - 16); + get_user_ual(env->regs[0], env->regs[1] - 12); + put_user_ual(env->regs[1], env->regs[9] - 12); + put_user_ual(env->regs[2], env->regs[9] - 8); + put_user_ual(env->regs[3], env->regs[9] - 4); + put_user_ual(env->regs[4], env->regs[0] - 32); + put_user_ual(env->regs[5], env->regs[0] - 28); + put_user_ual(env->regs[6], env->regs[0] - 24); + put_user_ual(env->regs[7], env->regs[0] - 20); + xtensa_rfwo(env); +} + +static void xtensa_underflow8(CPUXtensaState *env) +{ + get_user_ual(env->regs[0], env->regs[9] - 16); + get_user_ual(env->regs[1], env->regs[9] - 12); + get_user_ual(env->regs[2], env->regs[9] - 8); + get_user_ual(env->regs[7], env->regs[1] - 12); + get_user_ual(env->regs[3], env->regs[9] - 4); + get_user_ual(env->regs[4], env->regs[7] - 32); + get_user_ual(env->regs[5], env->regs[7] - 28); + get_user_ual(env->regs[6], env->regs[7] - 24); + get_user_ual(env->regs[7], env->regs[7] - 20); + xtensa_rfwu(env); +} + +static void xtensa_overflow12(CPUXtensaState *env) +{ + put_user_ual(env->regs[0], env->regs[13] - 16); + get_user_ual(env->regs[0], env->regs[1] - 12); + put_user_ual(env->regs[1], env->regs[13] - 12); + put_user_ual(env->regs[2], env->regs[13] - 8); + put_user_ual(env->regs[3], env->regs[13] - 4); + put_user_ual(env->regs[4], env->regs[0] - 48); + put_user_ual(env->regs[5], env->regs[0] - 44); + put_user_ual(env->regs[6], env->regs[0] - 40); + put_user_ual(env->regs[7], env->regs[0] - 36); + put_user_ual(env->regs[8], env->regs[0] - 32); + put_user_ual(env->regs[9], env->regs[0] - 28); + put_user_ual(env->regs[10], env->regs[0] - 24); + put_user_ual(env->regs[11], env->regs[0] - 20); + xtensa_rfwo(env); +} + +static void xtensa_underflow12(CPUXtensaState *env) +{ + get_user_ual(env->regs[0], env->regs[13] - 16); + get_user_ual(env->regs[1], env->regs[13] - 12); + get_user_ual(env->regs[2], env->regs[13] - 8); + get_user_ual(env->regs[11], env->regs[1] - 12); + get_user_ual(env->regs[3], env->regs[13] - 4); + get_user_ual(env->regs[4], env->regs[11] - 48); + get_user_ual(env->regs[5], env->regs[11] - 44); + get_user_ual(env->regs[6], env->regs[11] - 40); + get_user_ual(env->regs[7], env->regs[11] - 36); + get_user_ual(env->regs[8], env->regs[11] - 32); + get_user_ual(env->regs[9], env->regs[11] - 28); + get_user_ual(env->regs[10], env->regs[11] - 24); + get_user_ual(env->regs[11], env->regs[11] - 20); + xtensa_rfwu(env); +} + +void cpu_loop(CPUXtensaState *env) +{ + CPUState *cs = CPU(xtensa_env_get_cpu(env)); + target_siginfo_t info; + abi_ulong ret; + int trapnr; + + while (1) { + cpu_exec_start(cs); + trapnr = cpu_exec(cs); + cpu_exec_end(cs); + process_queued_cpu_work(cs); + + env->sregs[PS] &= ~PS_EXCM; + switch (trapnr) { + case EXCP_INTERRUPT: + break; + + case EXC_WINDOW_OVERFLOW4: + xtensa_overflow4(env); + break; + case EXC_WINDOW_UNDERFLOW4: + xtensa_underflow4(env); + break; + case EXC_WINDOW_OVERFLOW8: + xtensa_overflow8(env); + break; + case EXC_WINDOW_UNDERFLOW8: + xtensa_underflow8(env); + break; + case EXC_WINDOW_OVERFLOW12: + xtensa_overflow12(env); + break; + case EXC_WINDOW_UNDERFLOW12: + xtensa_underflow12(env); + break; + + case EXC_USER: + switch (env->sregs[EXCCAUSE]) { + case ILLEGAL_INSTRUCTION_CAUSE: + case PRIVILEGED_CAUSE: + info.si_signo = TARGET_SIGILL; + info.si_errno = 0; + info.si_code = + env->sregs[EXCCAUSE] == ILLEGAL_INSTRUCTION_CAUSE ? + TARGET_ILL_ILLOPC : TARGET_ILL_PRVOPC; + info._sifields._sigfault._addr = env->sregs[EPC1]; + queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info); + break; + + case SYSCALL_CAUSE: + env->pc += 3; + ret = do_syscall(env, env->regs[2], + env->regs[6], env->regs[3], + env->regs[4], env->regs[5], + env->regs[8], env->regs[9], 0, 0); + switch (ret) { + default: + env->regs[2] = ret; + break; + + case -TARGET_ERESTARTSYS: + case -TARGET_QEMU_ESIGRETURN: + break; + } + break; + + case ALLOCA_CAUSE: + env->sregs[PS] = deposit32(env->sregs[PS], + PS_OWB_SHIFT, + PS_OWB_LEN, + env->sregs[WINDOW_BASE]); + + switch (env->regs[0] & 0xc0000000) { + case 0x00000000: + case 0x40000000: + xtensa_rotate_window(env, -1); + xtensa_underflow4(env); + break; + + case 0x80000000: + xtensa_rotate_window(env, -2); + xtensa_underflow8(env); + break; + + case 0xc0000000: + xtensa_rotate_window(env, -3); + xtensa_underflow12(env); + break; + } + break; + + case INTEGER_DIVIDE_BY_ZERO_CAUSE: + info.si_signo = TARGET_SIGFPE; + info.si_errno = 0; + info.si_code = TARGET_FPE_INTDIV; + info._sifields._sigfault._addr = env->sregs[EPC1]; + queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info); + break; + + case LOAD_PROHIBITED_CAUSE: + case STORE_PROHIBITED_CAUSE: + info.si_signo = TARGET_SIGSEGV; + info.si_errno = 0; + info.si_code = TARGET_SEGV_ACCERR; + info._sifields._sigfault._addr = env->sregs[EXCVADDR]; + queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info); + break; + + default: + fprintf(stderr, "exccause = %d\n", env->sregs[EXCCAUSE]); + g_assert_not_reached(); + } + break; + case EXCP_DEBUG: + trapnr = gdb_handlesig(cs, TARGET_SIGTRAP); + if (trapnr) { + info.si_signo = trapnr; + info.si_errno = 0; + info.si_code = TARGET_TRAP_BRKPT; + queue_signal(env, trapnr, QEMU_SI_FAULT, &info); + } + break; + case EXC_DEBUG: + default: + fprintf(stderr, "trapnr = %d\n", trapnr); + g_assert_not_reached(); + } + process_pending_signals(env); + } +} + +#endif /* TARGET_XTENSA */ + __thread CPUState *thread_cpu; bool qemu_cpu_is_self(CPUState *cpu) @@ -4970,6 +5206,15 @@ int main(int argc, char **argv, char **envp) env->iaoq_f = regs->iaoq[0]; env->iaoq_b = regs->iaoq[1]; } +#elif defined(TARGET_XTENSA) + { + int i; + for (i = 0; i < 16; ++i) { + env->regs[i] = regs->areg[i]; + } + env->sregs[WINDOW_START] = regs->windowstart; + env->pc = regs->pc; + } #else #error unsupported target CPU #endif diff --git a/linux-user/signal.c b/linux-user/signal.c index 2ce5d7a3c7e3..24b6f38b42a5 100644 --- a/linux-user/signal.c +++ b/linux-user/signal.c @@ -7051,6 +7051,260 @@ long do_rt_sigreturn(CPUArchState *env) return -TARGET_QEMU_ESIGRETURN; } +#elif defined(TARGET_XTENSA) + +struct target_sigcontext { + abi_ulong sc_pc; + abi_ulong sc_ps; + abi_ulong sc_lbeg; + abi_ulong sc_lend; + abi_ulong sc_lcount; + abi_ulong sc_sar; + abi_ulong sc_acclo; + abi_ulong sc_acchi; + abi_ulong sc_a[16]; + abi_ulong sc_xtregs; +}; + +struct target_ucontext { + abi_ulong tuc_flags; + abi_ulong tuc_link; + target_stack_t tuc_stack; + struct target_sigcontext tuc_mcontext; + target_sigset_t tuc_sigmask; +}; + +struct target_rt_sigframe { + target_siginfo_t info; + struct target_ucontext uc; + /* TODO: xtregs */ + uint8_t retcode[6]; + abi_ulong window[4]; +}; + +static abi_ulong get_sigframe(struct target_sigaction *sa, + CPUXtensaState *env, + unsigned long framesize) +{ + abi_ulong sp = env->regs[1]; + + /* This is the X/Open sanctioned signal stack switching. */ + if ((sa->sa_flags & TARGET_SA_ONSTACK) != 0 && !sas_ss_flags(sp)) { + sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size; + } + return (sp - framesize) & -16; +} + +static int flush_window_regs(CPUXtensaState *env) +{ + const uint32_t nareg_mask = env->config->nareg - 1; + uint32_t wb = env->sregs[WINDOW_BASE]; + uint32_t ws = (xtensa_replicate_windowstart(env) >> (wb + 1)) & + ((1 << env->config->nareg / 4) - 1); + uint32_t d = ctz32(ws) + 1; + uint32_t sp; + abi_long ret = 0; + + wb += d; + ws >>= d; + + xtensa_sync_phys_from_window(env); + sp = env->phys_regs[(wb * 4 + 1) & nareg_mask]; + + while (ws && ret == 0) { + int d; + int i; + int idx; + + if (ws & 0x1) { + ws >>= 1; + d = 1; + } else if (ws & 0x2) { + ws >>= 2; + d = 2; + for (i = 0; i < 4; ++i) { + idx = (wb * 4 + 4 + i) & nareg_mask; + ret |= put_user_ual(env->phys_regs[idx], sp + (i - 12) * 4); + } + } else if (ws & 0x4) { + ws >>= 3; + d = 3; + for (i = 0; i < 8; ++i) { + idx = (wb * 4 + 4 + i) & nareg_mask; + ret |= put_user_ual(env->phys_regs[idx], sp + (i - 16) * 4); + } + } else { + g_assert_not_reached(); + } + sp = env->phys_regs[((wb + d) * 4 + 1) & nareg_mask]; + for (i = 0; i < 4; ++i) { + idx = (wb * 4 + i) & nareg_mask; + ret |= put_user_ual(env->phys_regs[idx], sp + (i - 4) * 4); + } + wb += d; + } + return ret == 0; +} + +static int setup_sigcontext(struct target_rt_sigframe *frame, + CPUXtensaState *env) +{ + struct target_sigcontext *sc = &frame->uc.tuc_mcontext; + int i; + + __put_user(env->pc, &sc->sc_pc); + __put_user(env->sregs[PS], &sc->sc_ps); + __put_user(env->sregs[LBEG], &sc->sc_lbeg); + __put_user(env->sregs[LEND], &sc->sc_lend); + __put_user(env->sregs[LCOUNT], &sc->sc_lcount); + if (!flush_window_regs(env)) { + return 0; + } + for (i = 0; i < 16; ++i) { + __put_user(env->regs[i], sc->sc_a + i); + } + __put_user(0, &sc->sc_xtregs); + /* TODO: xtregs */ + return 1; +} + +static void setup_rt_frame(int sig, struct target_sigaction *ka, + target_siginfo_t *info, + target_sigset_t *set, CPUXtensaState *env) +{ + abi_ulong frame_addr; + struct target_rt_sigframe *frame; + uint32_t ra; + int i; + + frame_addr = get_sigframe(ka, env, sizeof(*frame)); + trace_user_setup_rt_frame(env, frame_addr); + + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { + goto give_sigsegv; + } + + if (ka->sa_flags & SA_SIGINFO) { + tswap_siginfo(&frame->info, info); + } + + __put_user(0, &frame->uc.tuc_flags); + __put_user(0, &frame->uc.tuc_link); + __put_user(target_sigaltstack_used.ss_sp, + &frame->uc.tuc_stack.ss_sp); + __put_user(sas_ss_flags(env->regs[1]), + &frame->uc.tuc_stack.ss_flags); + __put_user(target_sigaltstack_used.ss_size, + &frame->uc.tuc_stack.ss_size); + if (!setup_sigcontext(frame, env)) { + unlock_user_struct(frame, frame_addr, 0); + goto give_sigsegv; + } + for (i = 0; i < TARGET_NSIG_WORDS; ++i) { + __put_user(set->sig[i], &frame->uc.tuc_sigmask.sig[i]); + } + + if (ka->sa_flags & TARGET_SA_RESTORER) { + ra = ka->sa_restorer; + } else { + ra = frame_addr + offsetof(struct target_rt_sigframe, retcode); +#ifdef TARGET_WORDS_BIGENDIAN + /* Generate instruction: MOVI a2, __NR_rt_sigreturn */ + __put_user(0x22, &frame->retcode[0]); + __put_user(0x0a, &frame->retcode[1]); + __put_user(TARGET_NR_rt_sigreturn, &frame->retcode[2]); + /* Generate instruction: SYSCALL */ + __put_user(0x00, &frame->retcode[3]); + __put_user(0x05, &frame->retcode[4]); + __put_user(0x00, &frame->retcode[5]); +#else + /* Generate instruction: MOVI a2, __NR_rt_sigreturn */ + __put_user(0x22, &frame->retcode[0]); + __put_user(0xa0, &frame->retcode[1]); + __put_user(TARGET_NR_rt_sigreturn, &frame->retcode[2]); + /* Generate instruction: SYSCALL */ + __put_user(0x00, &frame->retcode[3]); + __put_user(0x50, &frame->retcode[4]); + __put_user(0x00, &frame->retcode[5]); +#endif + } + env->sregs[PS] = PS_UM | (3 << PS_RING_SHIFT); + if (xtensa_option_enabled(env->config, XTENSA_OPTION_WINDOWED_REGISTER)) { + env->sregs[PS] |= PS_WOE | (1 << PS_CALLINC_SHIFT); + } + memset(env->regs, 0, sizeof(env->regs)); + env->pc = ka->_sa_handler; + env->regs[1] = frame_addr; + env->sregs[WINDOW_BASE] = 0; + env->sregs[WINDOW_START] = 1; + + env->regs[4] = (ra & 0x3fffffff) | 0x40000000; + env->regs[6] = sig; + env->regs[7] = frame_addr + offsetof(struct target_rt_sigframe, info); + env->regs[8] = frame_addr + offsetof(struct target_rt_sigframe, uc); + unlock_user_struct(frame, frame_addr, 1); + return; + +give_sigsegv: + force_sigsegv(sig); + return; +} + +static void restore_sigcontext(CPUXtensaState *env, + struct target_rt_sigframe *frame) +{ + struct target_sigcontext *sc = &frame->uc.tuc_mcontext; + uint32_t ps; + int i; + + __get_user(env->pc, &sc->sc_pc); + __get_user(ps, &sc->sc_ps); + __get_user(env->sregs[LBEG], &sc->sc_lbeg); + __get_user(env->sregs[LEND], &sc->sc_lend); + __get_user(env->sregs[LCOUNT], &sc->sc_lcount); + + env->sregs[WINDOW_BASE] = 0; + env->sregs[WINDOW_START] = 1; + env->sregs[PS] = deposit32(env->sregs[PS], + PS_CALLINC_SHIFT, + PS_CALLINC_LEN, + extract32(ps, PS_CALLINC_SHIFT, + PS_CALLINC_LEN)); + for (i = 0; i < 16; ++i) { + __get_user(env->regs[i], sc->sc_a + i); + } + /* TODO: xtregs */ +} + +long do_rt_sigreturn(CPUXtensaState *env) +{ + abi_ulong frame_addr = env->regs[1]; + struct target_rt_sigframe *frame; + sigset_t set; + + trace_user_do_rt_sigreturn(env, frame_addr); + if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) { + goto badframe; + } + target_to_host_sigset(&set, &frame->uc.tuc_sigmask); + set_sigmask(&set); + + restore_sigcontext(env, frame); + + if (do_sigaltstack(frame_addr + + offsetof(struct target_rt_sigframe, uc.tuc_stack), + 0, get_sp_from_cpustate(env)) == -TARGET_EFAULT) { + goto badframe; + } + unlock_user_struct(frame, frame_addr, 0); + return -TARGET_QEMU_ESIGRETURN; + +badframe: + unlock_user_struct(frame, frame_addr, 0); + force_sig(TARGET_SIGSEGV); + return -TARGET_QEMU_ESIGRETURN; +} + #else static void setup_frame(int sig, struct target_sigaction *ka, @@ -7154,7 +7408,7 @@ static void handle_pending_signal(CPUArchState *cpu_env, int sig, || defined(TARGET_OPENRISC) || defined(TARGET_TILEGX) \ || defined(TARGET_PPC64) || defined(TARGET_HPPA) \ || defined(TARGET_NIOS2) || defined(TARGET_X86_64) \ - || defined(TARGET_RISCV) + || defined(TARGET_RISCV) || defined(TARGET_XTENSA) /* These targets do not have traditional signals. */ setup_rt_frame(sig, sa, &k->info, &target_old_set, cpu_env); #else diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 19d5445c3197..e864a1d72a27 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -709,6 +709,8 @@ static inline int regpairs_aligned(void *cpu_env, int num) return 0; } } +#elif defined(TARGET_XTENSA) +static inline int regpairs_aligned(void *cpu_env, int num) { return 1; } #else static inline int regpairs_aligned(void *cpu_env, int num) { return 0; } #endif diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index e00e1b38628e..b034fa8d54f8 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -71,7 +71,8 @@ || defined(TARGET_M68K) || defined(TARGET_CRIS) \ || defined(TARGET_UNICORE32) || defined(TARGET_S390X) \ || defined(TARGET_OPENRISC) || defined(TARGET_TILEGX) \ - || defined(TARGET_NIOS2) || defined(TARGET_RISCV) + || defined(TARGET_NIOS2) || defined(TARGET_RISCV) \ + || defined(TARGET_XTENSA) #define TARGET_IOC_SIZEBITS 14 #define TARGET_IOC_DIRBITS 2 @@ -436,7 +437,7 @@ int do_sigaction(int sig, const struct target_sigaction *act, || defined(TARGET_MICROBLAZE) || defined(TARGET_UNICORE32) \ || defined(TARGET_S390X) || defined(TARGET_OPENRISC) \ || defined(TARGET_TILEGX) || defined(TARGET_HPPA) || defined(TARGET_NIOS2) \ - || defined(TARGET_RISCV) + || defined(TARGET_RISCV) || defined(TARGET_XTENSA) #if defined(TARGET_SPARC) #define TARGET_SA_NOCLDSTOP 8u @@ -1392,6 +1393,18 @@ struct target_winsize { #define TARGET_MAP_NONBLOCK 0x20000 /* do not block on IO */ #define TARGET_MAP_STACK 0x40000 /* ignored */ #define TARGET_MAP_HUGETLB 0x80000 /* create a huge page mapping */ +#elif defined(TARGET_XTENSA) +#define TARGET_MAP_FIXED 0x10 /* Interpret addr exactly */ +#define TARGET_MAP_ANONYMOUS 0x0800 /* don't use a file */ +#define TARGET_MAP_GROWSDOWN 0x1000 /* stack-like segment */ +#define TARGET_MAP_DENYWRITE 0x2000 /* ETXTBSY */ +#define TARGET_MAP_EXECUTABLE 0x4000 /* mark it as an executable */ +#define TARGET_MAP_LOCKED 0x8000 /* pages are locked */ +#define TARGET_MAP_NORESERVE 0x0400 /* don't check for reservations */ +#define TARGET_MAP_POPULATE 0x10000 /* populate (prefault) pagetables */ +#define TARGET_MAP_NONBLOCK 0x20000 /* do not block on IO */ +#define TARGET_MAP_STACK 0x40000 +#define TARGET_MAP_HUGETLB 0x80000 /* create a huge page mapping */ #else #define TARGET_MAP_FIXED 0x10 /* Interpret addr exactly */ #define TARGET_MAP_ANONYMOUS 0x20 /* don't use a file */ @@ -2093,6 +2106,51 @@ struct target_stat { abi_ulong target_st_ctime_nsec; unsigned int __unused[2]; }; +#elif defined(TARGET_XTENSA) +struct target_stat { + abi_ulong st_dev; + abi_ulong st_ino; + unsigned int st_mode; + unsigned int st_nlink; + unsigned int st_uid; + unsigned int st_gid; + abi_ulong st_rdev; + abi_long st_size; + abi_ulong st_blksize; + abi_ulong st_blocks; + abi_ulong target_st_atime; + abi_ulong target_st_atime_nsec; + abi_ulong target_st_mtime; + abi_ulong target_st_mtime_nsec; + abi_ulong target_st_ctime; + abi_ulong target_st_ctime_nsec; + abi_ulong __unused4; + abi_ulong __unused5; +}; + +#define TARGET_HAS_STRUCT_STAT64 +struct target_stat64 { + uint64_t st_dev; /* Device */ + uint64_t st_ino; /* File serial number */ + unsigned int st_mode; /* File mode. */ + unsigned int st_nlink; /* Link count. */ + unsigned int st_uid; /* User ID of the file's owner. */ + unsigned int st_gid; /* Group ID of the file's group. */ + uint64_t st_rdev; /* Device number, if device. */ + int64_t st_size; /* Size of file, in bytes. */ + abi_ulong st_blksize; /* Optimal block size for I/O. */ + abi_ulong __unused2; + uint64_t st_blocks; /* Number 512-byte blocks allocated. */ + abi_ulong target_st_atime; /* Time of last access. */ + abi_ulong target_st_atime_nsec; + abi_ulong target_st_mtime; /* Time of last modification. */ + abi_ulong target_st_mtime_nsec; + abi_ulong target_st_ctime; /* Time of last status change. */ + abi_ulong target_st_ctime_nsec; + abi_ulong __unused4; + abi_ulong __unused5; +}; + #elif defined(TARGET_OPENRISC) || defined(TARGET_TILEGX) || \ defined(TARGET_NIOS2) || defined(TARGET_RISCV) @@ -2593,7 +2651,8 @@ struct target_flock64 { short l_whence; #if defined(TARGET_PPC) || defined(TARGET_X86_64) || defined(TARGET_MIPS) \ || defined(TARGET_SPARC) || defined(TARGET_HPPA) \ - || defined(TARGET_MICROBLAZE) || defined(TARGET_TILEGX) + || defined(TARGET_MICROBLAZE) || defined(TARGET_TILEGX) \ + || defined(TARGET_XTENSA) int __pad; #endif abi_llong l_start; diff --git a/linux-user/xtensa/syscall.h b/linux-user/xtensa/syscall.h new file mode 100644 index 000000000000..e69de29bb2d1 diff --git a/linux-user/xtensa/syscall_nr.h b/linux-user/xtensa/syscall_nr.h new file mode 100644 index 000000000000..cd5ef45f8436 --- /dev/null +++ b/linux-user/xtensa/syscall_nr.h @@ -0,0 +1,437 @@ +/* + * include/asm-xtensa/unistd.h + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2001 - 2009 Tensilica Inc. + */ + +#ifndef _XTENSA_UNISTD_H +#define _XTENSA_UNISTD_H + +#define TARGET_NR_spill 0 +#define TARGET_NR_xtensa 1 +#define TARGET_NR_available4 2 +#define TARGET_NR_available5 3 +#define TARGET_NR_available6 4 +#define TARGET_NR_available7 5 +#define TARGET_NR_available8 6 +#define TARGET_NR_available9 7 + +/* File Operations */ + +#define TARGET_NR_open 8 +#define TARGET_NR_close 9 +#define TARGET_NR_dup 10 +#define TARGET_NR_dup2 11 +#define TARGET_NR_read 12 +#define TARGET_NR_write 13 +#define TARGET_NR_select 14 +#define TARGET_NR_lseek 15 +#define TARGET_NR_poll 16 +#define TARGET_NR__llseek 17 +#define TARGET_NR_epoll_wait 18 +#define TARGET_NR_epoll_ctl 19 +#define TARGET_NR_epoll_create 20 +#define TARGET_NR_creat 21 +#define TARGET_NR_truncate 22 +#define TARGET_NR_ftruncate 23 +#define TARGET_NR_readv 24 +#define TARGET_NR_writev 25 +#define TARGET_NR_fsync 26 +#define TARGET_NR_fdatasync 27 +#define TARGET_NR_truncate64 28 +#define TARGET_NR_ftruncate64 29 +#define TARGET_NR_pread64 30 +#define TARGET_NR_pwrite64 31 + +#define TARGET_NR_link 32 +#define TARGET_NR_rename 33 +#define TARGET_NR_symlink 34 +#define TARGET_NR_readlink 35 +#define TARGET_NR_mknod 36 +#define TARGET_NR_pipe 37 +#define TARGET_NR_unlink 38 +#define TARGET_NR_rmdir 39 + +#define TARGET_NR_mkdir 40 +#define TARGET_NR_chdir 41 +#define TARGET_NR_fchdir 42 +#define TARGET_NR_getcwd 43 + +#define TARGET_NR_chmod 44 +#define TARGET_NR_chown 45 +#define TARGET_NR_stat 46 +#define TARGET_NR_stat64 47 + +#define TARGET_NR_lchown 48 +#define TARGET_NR_lstat 49 +#define TARGET_NR_lstat64 50 +#define TARGET_NR_available51 51 + +#define TARGET_NR_fchmod 52 +#define TARGET_NR_fchown 53 +#define TARGET_NR_fstat 54 +#define TARGET_NR_fstat64 55 + +#define TARGET_NR_flock 56 +#define TARGET_NR_access 57 +#define TARGET_NR_umask 58 +#define TARGET_NR_getdents 59 +#define TARGET_NR_getdents64 60 +#define TARGET_NR_fcntl64 61 +#define TARGET_NR_fallocate 62 +#define TARGET_NR_fadvise64_64 63 +#define TARGET_NR_utime 64 /* glibc 2.3.3 ?? */ +#define TARGET_NR_utimes 65 +#define TARGET_NR_ioctl 66 +#define TARGET_NR_fcntl 67 + +#define TARGET_NR_setxattr 68 +#define TARGET_NR_getxattr 69 +#define TARGET_NR_listxattr 70 +#define TARGET_NR_removexattr 71 +#define TARGET_NR_lsetxattr 72 +#define TARGET_NR_lgetxattr 73 +#define TARGET_NR_llistxattr 74 +#define TARGET_NR_lremovexattr 75 +#define TARGET_NR_fsetxattr 76 +#define TARGET_NR_fgetxattr 77 +#define TARGET_NR_flistxattr 78 +#define TARGET_NR_fremovexattr 79 + +/* File Map / Shared Memory Operations */ + +#define TARGET_NR_mmap2 80 +#define TARGET_NR_munmap 81 +#define TARGET_NR_mprotect 82 +#define TARGET_NR_brk 83 +#define TARGET_NR_mlock 84 +#define TARGET_NR_munlock 85 +#define TARGET_NR_mlockall 86 +#define TARGET_NR_munlockall 87 +#define TARGET_NR_mremap 88 +#define TARGET_NR_msync 89 +#define TARGET_NR_mincore 90 +#define TARGET_NR_madvise 91 +#define TARGET_NR_shmget 92 +#define TARGET_NR_shmat 93 +#define TARGET_NR_shmctl 94 +#define TARGET_NR_shmdt 95 + +/* Socket Operations */ + +#define TARGET_NR_socket 96 +#define TARGET_NR_setsockopt 97 +#define TARGET_NR_getsockopt 98 +#define TARGET_NR_shutdown 99 + +#define TARGET_NR_bind 100 +#define TARGET_NR_connect 101 +#define TARGET_NR_listen 102 +#define TARGET_NR_accept 103 + +#define TARGET_NR_getsockname 104 +#define TARGET_NR_getpeername 105 +#define TARGET_NR_sendmsg 106 +#define TARGET_NR_recvmsg 107 +#define TARGET_NR_send 108 +#define TARGET_NR_recv 109 +#define TARGET_NR_sendto 110 +#define TARGET_NR_recvfrom 111 + +#define TARGET_NR_socketpair 112 +#define TARGET_NR_sendfile 113 +#define TARGET_NR_sendfile64 114 +#define TARGET_NR_sendmmsg 115 + +/* Process Operations */ + +#define TARGET_NR_clone 116 +#define TARGET_NR_execve 117 +#define TARGET_NR_exit 118 +#define TARGET_NR_exit_group 119 +#define TARGET_NR_getpid 120 +#define TARGET_NR_wait4 121 +#define TARGET_NR_waitid 122 +#define TARGET_NR_kill 123 +#define TARGET_NR_tkill 124 +#define TARGET_NR_tgkill 125 +#define TARGET_NR_set_tid_address 126 +#define TARGET_NR_gettid 127 +#define TARGET_NR_setsid 128 +#define TARGET_NR_getsid 129 +#define TARGET_NR_prctl 130 +#define TARGET_NR_personality 131 +#define TARGET_NR_getpriority 132 +#define TARGET_NR_setpriority 133 +#define TARGET_NR_setitimer 134 +#define TARGET_NR_getitimer 135 +#define TARGET_NR_setuid 136 +#define TARGET_NR_getuid 137 +#define TARGET_NR_setgid 138 +#define TARGET_NR_getgid 139 +#define TARGET_NR_geteuid 140 +#define TARGET_NR_getegid 141 +#define TARGET_NR_setreuid 142 +#define TARGET_NR_setregid 143 +#define TARGET_NR_setresuid 144 +#define TARGET_NR_getresuid 145 +#define TARGET_NR_setresgid 146 +#define TARGET_NR_getresgid 147 +#define TARGET_NR_setpgid 148 +#define TARGET_NR_getpgid 149 +#define TARGET_NR_getppid 150 +#define TARGET_NR_getpgrp 151 + +#define TARGET_NR_reserved152 152 /* set_thread_area */ +#define TARGET_NR_reserved153 153 /* get_thread_area */ +#define TARGET_NR_times 154 +#define TARGET_NR_acct 155 +#define TARGET_NR_sched_setaffinity 156 +#define TARGET_NR_sched_getaffinity 157 +#define TARGET_NR_capget 158 +#define TARGET_NR_capset 159 +#define TARGET_NR_ptrace 160 +#define TARGET_NR_semtimedop 161 +#define TARGET_NR_semget 162 +#define TARGET_NR_semop 163 +#define TARGET_NR_semctl 164 +#define TARGET_NR_available165 165 +#define TARGET_NR_msgget 166 +#define TARGET_NR_msgsnd 167 +#define TARGET_NR_msgrcv 168 +#define TARGET_NR_msgctl 169 +#define TARGET_NR_available170 170 + +/* File System */ + +#define TARGET_NR_umount2 171 +#define TARGET_NR_mount 172 +#define TARGET_NR_swapon 173 +#define TARGET_NR_chroot 174 +#define TARGET_NR_pivot_root 175 +#define TARGET_NR_umount 176 +#define TARGET_NR_swapoff 177 +#define TARGET_NR_sync 178 +#define TARGET_NR_syncfs 179 +#define TARGET_NR_setfsuid 180 +#define TARGET_NR_setfsgid 181 +#define TARGET_NR_sysfs 182 +#define TARGET_NR_ustat 183 +#define TARGET_NR_statfs 184 +#define TARGET_NR_fstatfs 185 +#define TARGET_NR_statfs64 186 +#define TARGET_NR_fstatfs64 187 + +/* System */ + +#define TARGET_NR_setrlimit 188 +#define TARGET_NR_getrlimit 189 +#define TARGET_NR_getrusage 190 +#define TARGET_NR_futex 191 +#define TARGET_NR_gettimeofday 192 +#define TARGET_NR_settimeofday 193 +#define TARGET_NR_adjtimex 194 +#define TARGET_NR_nanosleep 195 +#define TARGET_NR_getgroups 196 +#define TARGET_NR_setgroups 197 +#define TARGET_NR_sethostname 198 +#define TARGET_NR_setdomainname 199 +#define TARGET_NR_syslog 200 +#define TARGET_NR_vhangup 201 +#define TARGET_NR_uselib 202 +#define TARGET_NR_reboot 203 +#define TARGET_NR_quotactl 204 +#define TARGET_NR_nfsservctl 205 +#define TARGET_NR__sysctl 206 +#define TARGET_NR_bdflush 207 +#define TARGET_NR_uname 208 +#define TARGET_NR_sysinfo 209 +#define TARGET_NR_init_module 210 +#define TARGET_NR_delete_module 211 + +#define TARGET_NR_sched_setparam 212 +#define TARGET_NR_sched_getparam 213 +#define TARGET_NR_sched_setscheduler 214 +#define TARGET_NR_sched_getscheduler 215 +#define TARGET_NR_sched_get_priority_max 216 +#define TARGET_NR_sched_get_priority_min 217 +#define TARGET_NR_sched_rr_get_interval 218 +#define TARGET_NR_sched_yield 219 +#define TARGET_NR_available222 222 + +/* Signal Handling */ + +#define TARGET_NR_restart_syscall 223 +#define TARGET_NR_sigaltstack 224 +#define TARGET_NR_rt_sigreturn 225 +#define TARGET_NR_rt_sigaction 226 +#define TARGET_NR_rt_sigprocmask 227 +#define TARGET_NR_rt_sigpending 228 +#define TARGET_NR_rt_sigtimedwait 229 +#define TARGET_NR_rt_sigqueueinfo 230 +#define TARGET_NR_rt_sigsuspend 231 + +/* Message */ + +#define TARGET_NR_mq_open 232 +#define TARGET_NR_mq_unlink 233 +#define TARGET_NR_mq_timedsend 234 +#define TARGET_NR_mq_timedreceive 235 +#define TARGET_NR_mq_notify 236 +#define TARGET_NR_mq_getsetattr 237 +#define TARGET_NR_available238 238 + +/* IO */ + +#define TARGET_NR_io_setup 239 +#define TARGET_NR_io_destroy 240 +#define TARGET_NR_io_submit 241 +#define TARGET_NR_io_getevents 242 +#define TARGET_NR_io_cancel 243 +#define TARGET_NR_clock_settime 244 +#define TARGET_NR_clock_gettime 245 +#define TARGET_NR_clock_getres 246 +#define TARGET_NR_clock_nanosleep 247 + +/* Timer */ + +#define TARGET_NR_timer_create 248 +#define TARGET_NR_timer_delete 249 +#define TARGET_NR_timer_settime 250 +#define TARGET_NR_timer_gettime 251 +#define TARGET_NR_timer_getoverrun 252 + +/* System */ + +#define TARGET_NR_reserved253 253 +#define TARGET_NR_lookup_dcookie 254 +#define TARGET_NR_available255 255 +#define TARGET_NR_add_key 256 +#define TARGET_NR_request_key 257 +#define TARGET_NR_keyctl 258 +#define TARGET_NR_available259 259 + + +#define TARGET_NR_readahead 260 +#define TARGET_NR_remap_file_pages 261 +#define TARGET_NR_migrate_pages 262 +#define TARGET_NR_mbind 263 +#define TARGET_NR_get_mempolicy 264 +#define TARGET_NR_set_mempolicy 265 +#define TARGET_NR_unshare 266 +#define TARGET_NR_move_pages 267 +#define TARGET_NR_splice 268 +#define TARGET_NR_tee 269 +#define TARGET_NR_vmsplice 270 +#define TARGET_NR_available271 271 + +#define TARGET_NR_pselect6 272 +#define TARGET_NR_ppoll 273 +#define TARGET_NR_epoll_pwait 274 +#define TARGET_NR_epoll_create1 275 + +#define TARGET_NR_inotify_init 276 +#define TARGET_NR_inotify_add_watch 277 +#define TARGET_NR_inotify_rm_watch 278 +#define TARGET_NR_inotify_init1 279 + +#define TARGET_NR_getcpu 280 +#define TARGET_NR_kexec_load 281 + +#define TARGET_NR_ioprio_set 282 +#define TARGET_NR_ioprio_get 283 + +#define TARGET_NR_set_robust_list 284 +#define TARGET_NR_get_robust_list 285 +#define TARGET_NR_available286 286 +#define TARGET_NR_available287 287 + +/* Relative File Operations */ + +#define TARGET_NR_openat 288 +#define TARGET_NR_mkdirat 289 +#define TARGET_NR_mknodat 290 +#define TARGET_NR_unlinkat 291 +#define TARGET_NR_renameat 292 +#define TARGET_NR_linkat 293 +#define TARGET_NR_symlinkat 294 +#define TARGET_NR_readlinkat 295 +#define TARGET_NR_utimensat 296 +#define TARGET_NR_fchownat 297 +#define TARGET_NR_futimesat 298 +#define TARGET_NR_fstatat64 299 +#define TARGET_NR_fchmodat 300 +#define TARGET_NR_faccessat 301 +#define TARGET_NR_available302 302 +#define TARGET_NR_available303 303 + +#define TARGET_NR_signalfd 304 +/* 305 was TARGET_NR_timerfd */ +#define TARGET_NR_eventfd 306 +#define TARGET_NR_recvmmsg 307 + +#define TARGET_NR_setns 308 +#define TARGET_NR_signalfd4 309 +#define TARGET_NR_dup3 310 +#define TARGET_NR_pipe2 311 + +#define TARGET_NR_timerfd_create 312 +#define TARGET_NR_timerfd_settime 313 +#define TARGET_NR_timerfd_gettime 314 +#define TARGET_NR_available315 315 + +#define TARGET_NR_eventfd2 316 +#define TARGET_NR_preadv 317 +#define TARGET_NR_pwritev 318 +#define TARGET_NR_available319 319 + +#define TARGET_NR_fanotify_init 320 +#define TARGET_NR_fanotify_mark 321 +#define TARGET_NR_process_vm_readv 322 +#define TARGET_NR_process_vm_writev 323 + +#define TARGET_NR_name_to_handle_at 324 +#define TARGET_NR_open_by_handle_at 325 +#define TARGET_NR_sync_file_range2 326 +#define TARGET_NR_perf_event_open 327 + +#define TARGET_NR_rt_tgsigqueueinfo 328 +#define TARGET_NR_clock_adjtime 329 +#define TARGET_NR_prlimit64 330 +#define TARGET_NR_kcmp 331 + +#define TARGET_NR_finit_module 332 + +#define TARGET_NR_accept4 333 + +#define TARGET_NR_sched_setattr 334 +#define TARGET_NR_sched_getattr 335 + +#define TARGET_NR_renameat2 336 + +#define TARGET_NR_seccomp 337 +#define TARGET_NR_getrandom 338 +#define TARGET_NR_memfd_create 339 +#define TARGET_NR_bpf 340 +#define TARGET_NR_execveat 341 + +#define TARGET_NR_userfaultfd 342 +#define TARGET_NR_membarrier 343 +#define TARGET_NR_mlock2 344 +#define TARGET_NR_copy_file_range 345 +#define TARGET_NR_preadv2 346 +#define TARGET_NR_pwritev2 347 + +#define TARGET_NR_pkey_mprotect 348 +#define TARGET_NR_pkey_alloc 349 +#define TARGET_NR_pkey_free 350 + +#define TARGET_NR_statx 351 + +#define TARGET_NR_syscall_count 352 + +#endif /* _XTENSA_UNISTD_H */ diff --git a/linux-user/xtensa/target_cpu.h b/linux-user/xtensa/target_cpu.h new file mode 100644 index 000000000000..747d82861416 --- /dev/null +++ b/linux-user/xtensa/target_cpu.h @@ -0,0 +1,22 @@ +/* + * Xtensa-specific CPU ABI and functions for linux-user + */ +#ifndef XTENSA_TARGET_CPU_H +#define XTENSA_TARGET_CPU_H + +static inline void cpu_clone_regs(CPUXtensaState *env, target_ulong newsp) +{ + if (newsp) { + env->regs[1] = newsp; + env->sregs[WINDOW_BASE] = 0; + env->sregs[WINDOW_START] = 0x1; + } + env->regs[2] = 0; +} + +static inline void cpu_set_tls(CPUXtensaState *env, target_ulong newtls) +{ + env->uregs[THREADPTR] = newtls; +} + +#endif diff --git a/linux-user/xtensa/target_elf.h b/linux-user/xtensa/target_elf.h new file mode 100644 index 000000000000..a9a3fabd89be --- /dev/null +++ b/linux-user/xtensa/target_elf.h @@ -0,0 +1,16 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation, or (at your option) any + * later version. See the COPYING file in the top-level directory. + */ + +#ifndef XTENSA_TARGET_ELF_H +#define XTENSA_TARGET_ELF_H + +static inline const char *cpu_get_model(uint32_t eflags) +{ + return XTENSA_DEFAULT_CPU_MODEL; +} + +#endif diff --git a/linux-user/xtensa/target_signal.h b/linux-user/xtensa/target_signal.h new file mode 100644 index 000000000000..c6962e70afb7 --- /dev/null +++ b/linux-user/xtensa/target_signal.h @@ -0,0 +1,28 @@ +#ifndef XTENSA_TARGET_SIGNAL_H +#define XTENSA_TARGET_SIGNAL_H + +#include "cpu.h" + +/* this struct defines a stack used during syscall handling */ + +typedef struct target_sigaltstack { + abi_ulong ss_sp; + abi_int ss_flags; + abi_ulong ss_size; +} target_stack_t; + +/* + * sigaltstack controls + */ +#define TARGET_SS_ONSTACK 1 +#define TARGET_SS_DISABLE 2 + +#define TARGET_MINSIGSTKSZ 2048 +#define TARGET_SIGSTKSZ 8192 + +static inline abi_ulong get_sp_from_cpustate(CPUXtensaState *state) +{ + return state->regs[1]; +} + +#endif diff --git a/linux-user/xtensa/target_structs.h b/linux-user/xtensa/target_structs.h new file mode 100644 index 000000000000..020e20e242fc --- /dev/null +++ b/linux-user/xtensa/target_structs.h @@ -0,0 +1,28 @@ +#ifndef XTENSA_TARGET_STRUCTS_T +#define XTENSA_TARGET_STRUCTS_T + +struct target_ipc_perm { + abi_int __key; /* Key. */ + abi_uint uid; /* Owner's user ID. */ + abi_uint gid; /* Owner's group ID. */ + abi_uint cuid; /* Creator's user ID. */ + abi_uint cgid; /* Creator's group ID. */ + abi_uint mode; /* Read/write permission. */ + abi_ushort __seq; /* Sequence number. */ +}; + +struct target_shmid_ds { + struct target_ipc_perm shm_perm; /* operation permission struct */ + abi_int shm_segsz; /* size of segment in bytes */ + abi_long shm_atime; /* time of last shmat() */ + abi_long shm_dtime; /* time of last shmdt() */ + abi_long shm_ctime; /* time of last change by shmctl() */ + abi_ushort shm_cpid; /* pid of creator */ + abi_ushort shm_lpid; /* pid of last shmop */ + abi_ushort shm_nattch; /* number of current attaches */ + abi_ushort shm_unused; /* compatibility */ + abi_ulong __unused2; + abi_ulong __unused3; +}; + +#endif diff --git a/linux-user/xtensa/target_syscall.h b/linux-user/xtensa/target_syscall.h new file mode 100644 index 000000000000..3866dad84930 --- /dev/null +++ b/linux-user/xtensa/target_syscall.h @@ -0,0 +1,49 @@ +#ifndef XTENSA_TARGET_SYSCALL_H +#define XTENSA_TARGET_SYSCALL_H + +#define UNAME_MACHINE "xtensa" + +#define UNAME_MINIMUM_RELEASE "3.19" +#define TARGET_CLONE_BACKWARDS + +#define MMAP_SHIFT TARGET_PAGE_BITS + +typedef uint32_t xtensa_reg_t; +typedef struct { +} xtregs_opt_t; /* TODO */ + +struct target_pt_regs { + xtensa_reg_t pc; /* 4 */ + xtensa_reg_t ps; /* 8 */ + xtensa_reg_t depc; /* 12 */ + xtensa_reg_t exccause; /* 16 */ + xtensa_reg_t excvaddr; /* 20 */ + xtensa_reg_t debugcause; /* 24 */ + xtensa_reg_t wmask; /* 28 */ + xtensa_reg_t lbeg; /* 32 */ + xtensa_reg_t lend; /* 36 */ + xtensa_reg_t lcount; /* 40 */ + xtensa_reg_t sar; /* 44 */ + xtensa_reg_t windowbase; /* 48 */ + xtensa_reg_t windowstart; /* 52 */ + xtensa_reg_t syscall; /* 56 */ + xtensa_reg_t icountlevel; /* 60 */ + xtensa_reg_t scompare1; /* 64 */ + xtensa_reg_t threadptr; /* 68 */ + + /* Additional configurable registers that are used by the compiler. */ + xtregs_opt_t xtregs_opt; + + /* Make sure the areg field is 16 bytes aligned. */ + int align[0] __attribute__ ((aligned(16))); + + /* current register frame. + * Note: The ESF for kernel exceptions ends after 16 registers! + */ + xtensa_reg_t areg[16]; +}; + +#define TARGET_MLOCKALL_MCL_CURRENT 1 +#define TARGET_MLOCKALL_MCL_FUTURE 2 + +#endif diff --git a/linux-user/xtensa/termbits.h b/linux-user/xtensa/termbits.h new file mode 100644 index 000000000000..eed8286de79b --- /dev/null +++ b/linux-user/xtensa/termbits.h @@ -0,0 +1,328 @@ +/* + * include/asm-xtensa/termbits.h + * + * Copied from SH. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2001 - 2005 Tensilica Inc. + */ + +#ifndef _XTENSA_TERMBITS_H +#define _XTENSA_TERMBITS_H + +#include <linux/posix_types.h> + +typedef unsigned char cc_t; +typedef unsigned int speed_t; +typedef unsigned int tcflag_t; + +#define TARGET_NCCS 19 +struct target_termios { + tcflag_t c_iflag; /* input mode flags */ + tcflag_t c_oflag; /* output mode flags */ + tcflag_t c_cflag; /* control mode flags */ + tcflag_t c_lflag; /* local mode flags */ + cc_t c_line; /* line discipline */ + cc_t c_cc[TARGET_NCCS]; /* control characters */ +}; + +struct target_termios2 { + tcflag_t c_iflag; /* input mode flags */ + tcflag_t c_oflag; /* output mode flags */ + tcflag_t c_cflag; /* control mode flags */ + tcflag_t c_lflag; /* local mode flags */ + cc_t c_line; /* line discipline */ + cc_t c_cc[TARGET_NCCS]; /* control characters */ + speed_t c_ispeed; /* input speed */ + speed_t c_ospeed; /* output speed */ +}; + +struct target_ktermios { + tcflag_t c_iflag; /* input mode flags */ + tcflag_t c_oflag; /* output mode flags */ + tcflag_t c_cflag; /* control mode flags */ + tcflag_t c_lflag; /* local mode flags */ + cc_t c_line; /* line discipline */ + cc_t c_cc[TARGET_NCCS]; /* control characters */ + speed_t c_ispeed; /* input speed */ + speed_t c_ospeed; /* output speed */ +}; + +/* c_cc characters */ + +#define TARGET_VINTR 0 +#define TARGET_VQUIT 1 +#define TARGET_VERASE 2 +#define TARGET_VKILL 3 +#define TARGET_VEOF 4 +#define TARGET_VTIME 5 +#define TARGET_VMIN 6 +#define TARGET_VSWTC 7 +#define TARGET_VSTART 8 +#define TARGET_VSTOP 9 +#define TARGET_VSUSP 10 +#define TARGET_VEOL 11 +#define TARGET_VREPRINT 12 +#define TARGET_VDISCARD 13 +#define TARGET_VWERASE 14 +#define TARGET_VLNEXT 15 +#define TARGET_VEOL2 16 + +/* c_iflag bits */ + +#define TARGET_IGNBRK 0000001 +#define TARGET_BRKINT 0000002 +#define TARGET_IGNPAR 0000004 +#define TARGET_PARMRK 0000010 +#define TARGET_INPCK 0000020 +#define TARGET_ISTRIP 0000040 +#define TARGET_INLCR 0000100 +#define TARGET_IGNCR 0000200 +#define TARGET_ICRNL 0000400 +#define TARGET_IUCLC 0001000 +#define TARGET_IXON 0002000 +#define TARGET_IXANY 0004000 +#define TARGET_IXOFF 0010000 +#define TARGET_IMAXBEL 0020000 +#define TARGET_IUTF8 0040000 + +/* c_oflag bits */ + +#define TARGET_OPOST 0000001 +#define TARGET_OLCUC 0000002 +#define TARGET_ONLCR 0000004 +#define TARGET_OCRNL 0000010 +#define TARGET_ONOCR 0000020 +#define TARGET_ONLRET 0000040 +#define TARGET_OFILL 0000100 +#define TARGET_OFDEL 0000200 +#define TARGET_NLDLY 0000400 +#define TARGET_NL0 0000000 +#define TARGET_NL1 0000400 +#define TARGET_CRDLY 0003000 +#define TARGET_CR0 0000000 +#define TARGET_CR1 0001000 +#define TARGET_CR2 0002000 +#define TARGET_CR3 0003000 +#define TARGET_TABDLY 0014000 +#define TARGET_TAB0 0000000 +#define TARGET_TAB1 0004000 +#define TARGET_TAB2 0010000 +#define TARGET_TAB3 0014000 +#define TARGET_XTABS 0014000 +#define TARGET_BSDLY 0020000 +#define TARGET_BS0 0000000 +#define TARGET_BS1 0020000 +#define TARGET_VTDLY 0040000 +#define TARGET_VT0 0000000 +#define TARGET_VT1 0040000 +#define TARGET_FFDLY 0100000 +#define TARGET_FF0 0000000 +#define TARGET_FF1 0100000 + +/* c_cflag bit meaning */ + +#define TARGET_CBAUD 0010017 +#define TARGET_B0 0000000 /* hang up */ +#define TARGET_B50 0000001 +#define TARGET_B75 0000002 +#define TARGET_B110 0000003 +#define TARGET_B134 0000004 +#define TARGET_B150 0000005 +#define TARGET_B200 0000006 +#define TARGET_B300 0000007 +#define TARGET_B600 0000010 +#define TARGET_B1200 0000011 +#define TARGET_B1800 0000012 +#define TARGET_B2400 0000013 +#define TARGET_B4800 0000014 +#define TARGET_B9600 0000015 +#define TARGET_B19200 0000016 +#define TARGET_B38400 0000017 +#define TARGET_EXTA B19200 +#define TARGET_EXTB B38400 +#define TARGET_CSIZE 0000060 +#define TARGET_CS5 0000000 +#define TARGET_CS6 0000020 +#define TARGET_CS7 0000040 +#define TARGET_CS8 0000060 +#define TARGET_CSTOPB 0000100 +#define TARGET_CREAD 0000200 +#define TARGET_PARENB 0000400 +#define TARGET_PARODD 0001000 +#define TARGET_HUPCL 0002000 +#define TARGET_CLOCAL 0004000 +#define TARGET_CBAUDEX 0010000 +#define TARGET_BOTHER 0010000 +#define TARGET_B57600 0010001 +#define TARGET_B115200 0010002 +#define TARGET_B230400 0010003 +#define TARGET_B460800 0010004 +#define TARGET_B500000 0010005 +#define TARGET_B576000 0010006 +#define TARGET_B921600 0010007 +#define TARGET_B1000000 0010010 +#define TARGET_B1152000 0010011 +#define TARGET_B1500000 0010012 +#define TARGET_B2000000 0010013 +#define TARGET_B2500000 0010014 +#define TARGET_B3000000 0010015 +#define TARGET_B3500000 0010016 +#define TARGET_B4000000 0010017 +#define TARGET_CIBAUD 002003600000 /* input baud rate */ +#define TARGET_CMSPAR 010000000000 /* mark or space (stick) parity */ +#define TARGET_CRTSCTS 020000000000 /* flow control */ + +#define TARGET_IBSHIFT 16 /* Shift from CBAUD to CIBAUD */ + +/* c_lflag bits */ + +#define TARGET_ISIG 0000001 +#define TARGET_ICANON 0000002 +#define TARGET_XCASE 0000004 +#define TARGET_ECHO 0000010 +#define TARGET_ECHOE 0000020 +#define TARGET_ECHOK 0000040 +#define TARGET_ECHONL 0000100 +#define TARGET_NOFLSH 0000200 +#define TARGET_TOSTOP 0000400 +#define TARGET_ECHOCTL 0001000 +#define TARGET_ECHOPRT 0002000 +#define TARGET_ECHOKE 0004000 +#define TARGET_FLUSHO 0010000 +#define TARGET_PENDIN 0040000 +#define TARGET_IEXTEN 0100000 + +/* tcflow() and TCXONC use these */ + +#define TARGET_TCOOFF 0 +#define TARGET_TCOON 1 +#define TARGET_TCIOFF 2 +#define TARGET_TCION 3 + +/* tcflush() and TCFLSH use these */ + +#define TARGET_TCIFLUSH 0 +#define TARGET_TCOFLUSH 1 +#define TARGET_TCIOFLUSH 2 + +/* tcsetattr uses these */ + +#define TARGET_TCSANOW 0 +#define TARGET_TCSADRAIN 1 +#define TARGET_TCSAFLUSH 2 + +/* from arch/xtensa/include/uapi/asm/ioctls.h */ + +#define TARGET_FIOCLEX _IO('f', 1) +#define TARGET_FIONCLEX _IO('f', 2) +#define TARGET_FIOASYNC _IOW('f', 125, int) +#define TARGET_FIONBIO _IOW('f', 126, int) +#define TARGET_FIONREAD _IOR('f', 127, int) +#define TARGET_TIOCINQ FIONREAD +#define TARGET_FIOQSIZE _IOR('f', 128, loff_t) + +#define TARGET_TCGETS 0x5401 +#define TARGET_TCSETS 0x5402 +#define TARGET_TCSETSW 0x5403 +#define TARGET_TCSETSF 0x5404 + +#define TARGET_TCGETA 0x80127417 /* _IOR('t', 23, struct termio) */ +#define TARGET_TCSETA 0x40127418 /* _IOW('t', 24, struct termio) */ +#define TARGET_TCSETAW 0x40127419 /* _IOW('t', 25, struct termio) */ +#define TARGET_TCSETAF 0x4012741C /* _IOW('t', 28, struct termio) */ + +#define TARGET_TCSBRK _IO('t', 29) +#define TARGET_TCXONC _IO('t', 30) +#define TARGET_TCFLSH _IO('t', 31) + +#define TARGET_TIOCSWINSZ 0x40087467 /* _IOW('t', 103, struct winsize) */ +#define TARGET_TIOCGWINSZ 0x80087468 /* _IOR('t', 104, struct winsize) */ +#define TARGET_TIOCSTART _IO('t', 110) /* start output, like ^Q */ +#define TARGET_TIOCSTOP _IO('t', 111) /* stop output, like ^S */ +#define TARGET_TIOCOUTQ _IOR('t', 115, int) /* output queue size */ + +#define TARGET_TIOCSPGRP _IOW('t', 118, int) +#define TARGET_TIOCGPGRP _IOR('t', 119, int) + +#define TARGET_TIOCEXCL _IO('T', 12) +#define TARGET_TIOCNXCL _IO('T', 13) +#define TARGET_TIOCSCTTY _IO('T', 14) + +#define TARGET_TIOCSTI _IOW('T', 18, char) +#define TARGET_TIOCMGET _IOR('T', 21, unsigned int) +#define TARGET_TIOCMBIS _IOW('T', 22, unsigned int) +#define TARGET_TIOCMBIC _IOW('T', 23, unsigned int) +#define TARGET_TIOCMSET _IOW('T', 24, unsigned int) +# define TARGET_TIOCM_LE 0x001 +# define TARGET_TIOCM_DTR 0x002 +# define TARGET_TIOCM_RTS 0x004 +# define TARGET_TIOCM_ST 0x008 +# define TARGET_TIOCM_SR 0x010 +# define TARGET_TIOCM_CTS 0x020 +# define TARGET_TIOCM_CAR 0x040 +# define TARGET_TIOCM_RNG 0x080 +# define TARGET_TIOCM_DSR 0x100 +# define TARGET_TIOCM_CD TIOCM_CAR +# define TARGET_TIOCM_RI TIOCM_RNG + +#define TARGET_TIOCGSOFTCAR _IOR('T', 25, unsigned int) +#define TARGET_TIOCSSOFTCAR _IOW('T', 26, unsigned int) +#define TARGET_TIOCLINUX _IOW('T', 28, char) +#define TARGET_TIOCCONS _IO('T', 29) +#define TARGET_TIOCGSERIAL 0x803C541E /*_IOR('T', 30, struct serial_struct)*/ +#define TARGET_TIOCSSERIAL 0x403C541F /*_IOW('T', 31, struct serial_struct)*/ +#define TARGET_TIOCPKT _IOW('T', 32, int) +# define TARGET_TIOCPKT_DATA 0 +# define TARGET_TIOCPKT_FLUSHREAD 1 +# define TARGET_TIOCPKT_FLUSHWRITE 2 +# define TARGET_TIOCPKT_STOP 4 +# define TARGET_TIOCPKT_START 8 +# define TARGET_TIOCPKT_NOSTOP 16 +# define TARGET_TIOCPKT_DOSTOP 32 +# define TARGET_TIOCPKT_IOCTL 64 + + +#define TARGET_TIOCNOTTY _IO('T', 34) +#define TARGET_TIOCSETD _IOW('T', 35, int) +#define TARGET_TIOCGETD _IOR('T', 36, int) +#define TARGET_TCSBRKP _IOW('T', 37, int) /* Needed for POSIX tcsendbreak()*/ +#define TARGET_TIOCSBRK _IO('T', 39) /* BSD compatibility */ +#define TARGET_TIOCCBRK _IO('T', 40) /* BSD compatibility */ +#define TARGET_TIOCGSID _IOR('T', 41, pid_t) /* Return the session ID of FD*/ +#define TARGET_TCGETS2 _IOR('T', 42, struct termios2) +#define TARGET_TCSETS2 _IOW('T', 43, struct termios2) +#define TARGET_TCSETSW2 _IOW('T', 44, struct termios2) +#define TARGET_TCSETSF2 _IOW('T', 45, struct termios2) +#define TARGET_TIOCGRS485 _IOR('T', 46, struct serial_rs485) +#define TARGET_TIOCSRS485 _IOWR('T', 47, struct serial_rs485) +#define TARGET_TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */ +#define TARGET_TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */ +#define TARGET_TIOCGDEV _IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */ +#define TARGET_TIOCSIG _IOW('T',0x36, int) /* Generate signal on Pty slave */ +#define TARGET_TIOCVHANGUP _IO('T', 0x37) +#define TARGET_TIOCGPKT _IOR('T', 0x38, int) /* Get packet mode state */ +#define TARGET_TIOCGPTLCK _IOR('T', 0x39, int) /* Get Pty lock state */ +#define TARGET_TIOCGEXCL _IOR('T', 0x40, int) /* Get exclusive mode state */ +#define TARGET_TIOCGPTPEER _IO('T', 0x41) /* Safely open the slave */ + +#define TARGET_TIOCSERCONFIG _IO('T', 83) +#define TARGET_TIOCSERGWILD _IOR('T', 84, int) +#define TARGET_TIOCSERSWILD _IOW('T', 85, int) +#define TARGET_TIOCGLCKTRMIOS 0x5456 +#define TARGET_TIOCSLCKTRMIOS 0x5457 +#define TARGET_TIOCSERGSTRUCT 0x5458 /* For debugging only */ +#define TARGET_TIOCSERGETLSR _IOR('T', 89, unsigned int) /* Get line status reg. */ +/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */ +# define TARGET_TIOCSER_TEMT 0x01 /* Transmitter physically empty */ +#define TARGET_TIOCSERGETMULTI 0x80a8545a /* Get multiport config */ +/* _IOR('T', 90, struct serial_multiport_struct) */ +#define TARGET_TIOCSERSETMULTI 0x40a8545b /* Set multiport config */ +/* _IOW('T', 91, struct serial_multiport_struct) */ + +#define TARGET_TIOCMIWAIT _IO('T', 92) /* wait for a change on serial input line(s) */ +#define TARGET_TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */ +#endif /* _XTENSA_TERMBITS_H */ diff --git a/target/xtensa/Makefile.objs b/target/xtensa/Makefile.objs index e15851521f6d..2fae785cb287 100644 --- a/target/xtensa/Makefile.objs +++ b/target/xtensa/Makefile.objs @@ -1,10 +1,9 @@ -obj-y += xtensa-semi.o obj-y += core-dc232b.o obj-y += core-dc233c.o obj-y += core-de212.o obj-y += core-fsf.o obj-y += core-sample_controller.o -obj-$(CONFIG_SOFTMMU) += monitor.o +obj-$(CONFIG_SOFTMMU) += monitor.o xtensa-semi.o obj-y += xtensa-isa.o obj-y += translate.o op_helper.o helper.o cpu.o obj-y += gdbstub.o diff --git a/target/xtensa/cpu.c b/target/xtensa/cpu.c index 4573388a45fa..2b5b53722265 100644 --- a/target/xtensa/cpu.c +++ b/target/xtensa/cpu.c @@ -45,9 +45,13 @@ static void xtensa_cpu_set_pc(CPUState *cs, vaddr value) static bool xtensa_cpu_has_work(CPUState *cs) { +#ifndef CONFIG_USER_ONLY XtensaCPU *cpu = XTENSA_CPU(cs); return !cpu->env.runstall && cpu->env.pending_irq_level; +#else + return true; +#endif } /* CPUClass::reset() */ @@ -62,8 +66,16 @@ static void xtensa_cpu_reset(CPUState *s) env->exception_taken = 0; env->pc = env->config->exception_vector[EXC_RESET0 + env->static_vectors]; env->sregs[LITBASE] &= ~1; +#ifndef CONFIG_USER_ONLY env->sregs[PS] = xtensa_option_enabled(env->config, XTENSA_OPTION_INTERRUPT) ? 0x1f : 0x10; + env->pending_irq_level = 0; +#else + env->sregs[PS] = + (xtensa_option_enabled(env->config, + XTENSA_OPTION_WINDOWED_REGISTER) ? PS_WOE : 0) | + PS_UM | (3 << PS_RING_SHIFT); +#endif env->sregs[VECBASE] = env->config->vecbase; env->sregs[IBREAKENABLE] = 0; env->sregs[MEMCTL] = MEMCTL_IL0EN & env->config->memctl_mask; @@ -73,9 +85,10 @@ static void xtensa_cpu_reset(CPUState *s) env->sregs[CONFIGID0] = env->config->configid[0]; env->sregs[CONFIGID1] = env->config->configid[1]; - env->pending_irq_level = 0; +#ifndef CONFIG_USER_ONLY reset_mmu(env); s->halted = env->runstall; +#endif } static ObjectClass *xtensa_cpu_class_by_name(const char *cpu_model) @@ -104,11 +117,12 @@ static void xtensa_cpu_disas_set_info(CPUState *cs, disassemble_info *info) static void xtensa_cpu_realizefn(DeviceState *dev, Error **errp) { CPUState *cs = CPU(dev); - XtensaCPU *cpu = XTENSA_CPU(dev); XtensaCPUClass *xcc = XTENSA_CPU_GET_CLASS(dev); Error *local_err = NULL; - xtensa_irq_init(&cpu->env); +#ifndef CONFIG_USER_ONLY + xtensa_irq_init(&XTENSA_CPU(dev)->env); +#endif cpu_exec_realizefn(cs, &local_err); if (local_err != NULL) { @@ -133,11 +147,13 @@ static void xtensa_cpu_initfn(Object *obj) cs->env_ptr = env; env->config = xcc->config; +#ifndef CONFIG_USER_ONLY env->address_space_er = g_malloc(sizeof(*env->address_space_er)); env->system_er = g_malloc(sizeof(*env->system_er)); memory_region_init_io(env->system_er, NULL, NULL, env, "er", UINT64_C(0x100000000)); address_space_init(env->address_space_er, env->system_er, "ER"); +#endif } static const VMStateDescription vmstate_xtensa_cpu = { @@ -166,7 +182,9 @@ static void xtensa_cpu_class_init(ObjectClass *oc, void *data) cc->gdb_read_register = xtensa_cpu_gdb_read_register; cc->gdb_write_register = xtensa_cpu_gdb_write_register; cc->gdb_stop_before_watchpoint = true; -#ifndef CONFIG_USER_ONLY +#ifdef CONFIG_USER_ONLY + cc->handle_mmu_fault = xtensa_cpu_handle_mmu_fault; +#else cc->do_unaligned_access = xtensa_cpu_do_unaligned_access; cc->get_phys_page_debug = xtensa_cpu_get_phys_page_debug; cc->do_unassigned_access = xtensa_cpu_do_unassigned_access; diff --git a/target/xtensa/cpu.h b/target/xtensa/cpu.h index d9d3b33a7052..957f0fd59a98 100644 --- a/target/xtensa/cpu.h +++ b/target/xtensa/cpu.h @@ -44,7 +44,11 @@ #define NB_MMU_MODES 4 #define TARGET_PHYS_ADDR_SPACE_BITS 32 +#ifdef CONFIG_USER_ONLY +#define TARGET_VIRT_ADDR_SPACE_BITS 30 +#else #define TARGET_VIRT_ADDR_SPACE_BITS 32 +#endif #define TARGET_PAGE_BITS 12 enum { @@ -176,6 +180,7 @@ enum { #define PS_OWB 0xf00 #define PS_OWB_SHIFT 8 +#define PS_OWB_LEN 4 #define PS_CALLINC 0x30000 #define PS_CALLINC_SHIFT 16 @@ -438,6 +443,7 @@ typedef struct CPUXtensaState { } fregs[16]; float_status fp_status; +#ifndef CONFIG_USER_ONLY xtensa_tlb_entry itlb[7][MAX_TLB_WAY_SIZE]; xtensa_tlb_entry dtlb[10][MAX_TLB_WAY_SIZE]; unsigned autorefill_idx; @@ -450,6 +456,7 @@ typedef struct CPUXtensaState { uint64_t time_base; uint64_t ccount_time; uint32_t ccount_base; +#endif int exception_taken; int yield_needed; @@ -484,6 +491,9 @@ static inline XtensaCPU *xtensa_env_get_cpu(const CPUXtensaState *env) #define ENV_OFFSET offsetof(XtensaCPU, env) + +int xtensa_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw, int size, + int mmu_idx); void xtensa_cpu_do_interrupt(CPUState *cpu); bool xtensa_cpu_exec_interrupt(CPUState *cpu, int interrupt_request); void xtensa_cpu_do_unassigned_access(CPUState *cpu, hwaddr addr, @@ -531,26 +541,9 @@ int cpu_xtensa_signal_handler(int host_signum, void *pinfo, void *puc); void xtensa_cpu_list(FILE *f, fprintf_function cpu_fprintf); void xtensa_sync_window_from_phys(CPUXtensaState *env); void xtensa_sync_phys_from_window(CPUXtensaState *env); -uint32_t xtensa_tlb_get_addr_mask(const CPUXtensaState *env, bool dtlb, uint32_t way); -void split_tlb_entry_spec_way(const CPUXtensaState *env, uint32_t v, bool dtlb, - uint32_t *vpn, uint32_t wi, uint32_t *ei); -int xtensa_tlb_lookup(const CPUXtensaState *env, uint32_t addr, bool dtlb, - uint32_t *pwi, uint32_t *pei, uint8_t *pring); -void xtensa_tlb_set_entry_mmu(const CPUXtensaState *env, - xtensa_tlb_entry *entry, bool dtlb, - unsigned wi, unsigned ei, uint32_t vpn, uint32_t pte); -void xtensa_tlb_set_entry(CPUXtensaState *env, bool dtlb, - unsigned wi, unsigned ei, uint32_t vpn, uint32_t pte); -int xtensa_get_physical_addr(CPUXtensaState *env, bool update_tlb, - uint32_t vaddr, int is_write, int mmu_idx, - uint32_t *paddr, uint32_t *page_size, unsigned *access); -void reset_mmu(CPUXtensaState *env); -void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUXtensaState *env); +void xtensa_rotate_window(CPUXtensaState *env, uint32_t delta); +void xtensa_restore_owb(CPUXtensaState *env); void debug_exception_env(CPUXtensaState *new_env, uint32_t cause); -static inline MemoryRegion *xtensa_get_er_region(CPUXtensaState *env) -{ - return env->system_er; -} static inline void xtensa_select_static_vectors(CPUXtensaState *env, unsigned n) @@ -604,6 +597,29 @@ static inline int xtensa_get_cring(const CPUXtensaState *env) } } +#ifndef CONFIG_USER_ONLY +uint32_t xtensa_tlb_get_addr_mask(const CPUXtensaState *env, + bool dtlb, uint32_t way); +void split_tlb_entry_spec_way(const CPUXtensaState *env, uint32_t v, bool dtlb, + uint32_t *vpn, uint32_t wi, uint32_t *ei); +int xtensa_tlb_lookup(const CPUXtensaState *env, uint32_t addr, bool dtlb, + uint32_t *pwi, uint32_t *pei, uint8_t *pring); +void xtensa_tlb_set_entry_mmu(const CPUXtensaState *env, + xtensa_tlb_entry *entry, bool dtlb, + unsigned wi, unsigned ei, uint32_t vpn, uint32_t pte); +void xtensa_tlb_set_entry(CPUXtensaState *env, bool dtlb, + unsigned wi, unsigned ei, uint32_t vpn, uint32_t pte); +int xtensa_get_physical_addr(CPUXtensaState *env, bool update_tlb, + uint32_t vaddr, int is_write, int mmu_idx, + uint32_t *paddr, uint32_t *page_size, unsigned *access); +void reset_mmu(CPUXtensaState *env); +void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUXtensaState *env); + +static inline MemoryRegion *xtensa_get_er_region(CPUXtensaState *env) +{ + return env->system_er; +} + static inline xtensa_tlb_entry *xtensa_tlb_get_entry(CPUXtensaState *env, bool dtlb, unsigned wi, unsigned ei) { @@ -611,6 +627,7 @@ static inline xtensa_tlb_entry *xtensa_tlb_get_entry(CPUXtensaState *env, env->dtlb[wi] + ei : env->itlb[wi] + ei; } +#endif static inline uint32_t xtensa_replicate_windowstart(CPUXtensaState *env) { @@ -623,6 +640,7 @@ static inline uint32_t xtensa_replicate_windowstart(CPUXtensaState *env) #define MMU_MODE1_SUFFIX _ring1 #define MMU_MODE2_SUFFIX _ring2 #define MMU_MODE3_SUFFIX _ring3 +#define MMU_USER_IDX 3 static inline int cpu_mmu_index(CPUXtensaState *env, bool ifetch) { diff --git a/target/xtensa/helper.c b/target/xtensa/helper.c index 34885038d554..34844eead358 100644 --- a/target/xtensa/helper.c +++ b/target/xtensa/helper.c @@ -173,6 +173,7 @@ void xtensa_cpu_list(FILE *f, fprintf_function cpu_fprintf) hwaddr xtensa_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) { +#ifndef CONFIG_USER_ONLY XtensaCPU *cpu = XTENSA_CPU(cs); uint32_t paddr; uint32_t page_size; @@ -187,8 +188,13 @@ hwaddr xtensa_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) return paddr; } return ~0; +#else + return addr; +#endif } +#ifndef CONFIG_USER_ONLY + static uint32_t relocated_vector(CPUXtensaState *env, uint32_t vector) { if (xtensa_option_enabled(env->config, @@ -298,6 +304,11 @@ void xtensa_cpu_do_interrupt(CPUState *cs) } check_interrupts(env); } +#else +void xtensa_cpu_do_interrupt(CPUState *cs) +{ +} +#endif bool xtensa_cpu_exec_interrupt(CPUState *cs, int interrupt_request) { @@ -309,6 +320,25 @@ bool xtensa_cpu_exec_interrupt(CPUState *cs, int interrupt_request) return false; } +#ifdef CONFIG_USER_ONLY + +int xtensa_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int size, int rw, + int mmu_idx) +{ + XtensaCPU *cpu = XTENSA_CPU(cs); + CPUXtensaState *env = &cpu->env; + + qemu_log_mask(CPU_LOG_INT, + "%s: rw = %d, address = 0x%08" VADDR_PRIx ", size = %d\n", + __func__, rw, address, size); + env->sregs[EXCVADDR] = address; + env->sregs[EXCCAUSE] = rw ? STORE_PROHIBITED_CAUSE : LOAD_PROHIBITED_CAUSE; + cs->exception_index = EXC_USER; + return 1; +} + +#else + static void reset_tlb_mmu_all_ways(CPUXtensaState *env, const xtensa_tlb *tlb, xtensa_tlb_entry entry[][MAX_TLB_WAY_SIZE]) { @@ -769,3 +799,4 @@ void xtensa_runstall(CPUXtensaState *env, bool runstall) cpu_reset_interrupt(cpu, CPU_INTERRUPT_HALT); } } +#endif diff --git a/target/xtensa/helper.h b/target/xtensa/helper.h index cc751c98fbd0..73444ae02ccd 100644 --- a/target/xtensa/helper.h +++ b/target/xtensa/helper.h @@ -12,9 +12,12 @@ DEF_HELPER_1(restore_owb, void, env) DEF_HELPER_2(movsp, void, env, i32) DEF_HELPER_2(wsr_lbeg, void, env, i32) DEF_HELPER_2(wsr_lend, void, env, i32) +#ifndef CONFIG_USER_ONLY DEF_HELPER_1(simcall, void, env) +#endif DEF_HELPER_1(dump_state, void, env) +#ifndef CONFIG_USER_ONLY DEF_HELPER_3(waiti, void, env, i32, i32) DEF_HELPER_1(update_ccount, void, env) DEF_HELPER_2(wsr_ccount, void, env, i32) @@ -35,6 +38,7 @@ DEF_HELPER_2(wsr_ibreakenable, void, env, i32) DEF_HELPER_3(wsr_ibreaka, void, env, i32, i32) DEF_HELPER_3(wsr_dbreaka, void, env, i32, i32) DEF_HELPER_3(wsr_dbreakc, void, env, i32, i32) +#endif DEF_HELPER_2(wur_fcr, void, env, i32) DEF_HELPER_FLAGS_1(abs_s, TCG_CALL_NO_RWG_SE, f32, f32) diff --git a/target/xtensa/op_helper.c b/target/xtensa/op_helper.c index 7486b9979935..d401105d096b 100644 --- a/target/xtensa/op_helper.c +++ b/target/xtensa/op_helper.c @@ -36,6 +36,13 @@ #include "qemu/timer.h" #include "fpu/softfloat.h" +#ifdef CONFIG_USER_ONLY +/* tb_invalidate_phys_range */ +#include "accel/tcg/translate-all.h" +#endif + +#ifndef CONFIG_USER_ONLY + void xtensa_cpu_do_unaligned_access(CPUState *cs, vaddr addr, MMUAccessType access_type, int mmu_idx, uintptr_t retaddr) @@ -102,6 +109,17 @@ static void tb_invalidate_virtual_addr(CPUXtensaState *env, uint32_t vaddr) } } +#else + +static void tb_invalidate_virtual_addr(CPUXtensaState *env, uint32_t vaddr) +{ + mmap_lock(); + tb_invalidate_phys_range(vaddr, vaddr + 1); + mmap_unlock(); +} + +#endif + void HELPER(exception)(CPUXtensaState *env, uint32_t excp) { CPUState *cs = CPU(xtensa_env_get_cpu(env)); @@ -219,21 +237,21 @@ void xtensa_sync_phys_from_window(CPUXtensaState *env) copy_phys_from_window(env, env->sregs[WINDOW_BASE] * 4, 0, 16); } -static void rotate_window_abs(CPUXtensaState *env, uint32_t position) +static void xtensa_rotate_window_abs(CPUXtensaState *env, uint32_t position) { xtensa_sync_phys_from_window(env); env->sregs[WINDOW_BASE] = windowbase_bound(position, env); xtensa_sync_window_from_phys(env); } -static void rotate_window(CPUXtensaState *env, uint32_t delta) +void xtensa_rotate_window(CPUXtensaState *env, uint32_t delta) { - rotate_window_abs(env, env->sregs[WINDOW_BASE] + delta); + xtensa_rotate_window_abs(env, env->sregs[WINDOW_BASE] + delta); } void HELPER(wsr_windowbase)(CPUXtensaState *env, uint32_t v) { - rotate_window_abs(env, v); + xtensa_rotate_window_abs(env, v); } void HELPER(entry)(CPUXtensaState *env, uint32_t pc, uint32_t s, uint32_t imm) @@ -251,7 +269,7 @@ void HELPER(entry)(CPUXtensaState *env, uint32_t pc, uint32_t s, uint32_t imm) HELPER(window_check)(env, pc, callinc); } env->regs[(callinc << 2) | (s & 3)] = env->regs[s] - imm; - rotate_window(env, callinc); + xtensa_rotate_window(env, callinc); env->sregs[WINDOW_START] |= windowstart_bit(env->sregs[WINDOW_BASE], env); } @@ -266,7 +284,7 @@ void HELPER(window_check)(CPUXtensaState *env, uint32_t pc, uint32_t w) assert(n <= w); - rotate_window(env, n); + xtensa_rotate_window(env, n); env->sregs[PS] = (env->sregs[PS] & ~PS_OWB) | (windowbase << PS_OWB_SHIFT) | PS_EXCM; env->sregs[EPC1] = env->pc = pc; @@ -311,7 +329,7 @@ uint32_t HELPER(retw)(CPUXtensaState *env, uint32_t pc) ret_pc = (pc & 0xc0000000) | (env->regs[0] & 0x3fffffff); - rotate_window(env, -n); + xtensa_rotate_window(env, -n); if (windowstart & windowstart_bit(env->sregs[WINDOW_BASE], env)) { env->sregs[WINDOW_START] &= ~windowstart_bit(owb, env); } else { @@ -334,12 +352,17 @@ uint32_t HELPER(retw)(CPUXtensaState *env, uint32_t pc) void HELPER(rotw)(CPUXtensaState *env, uint32_t imm4) { - rotate_window(env, imm4); + xtensa_rotate_window(env, imm4); +} + +void xtensa_restore_owb(CPUXtensaState *env) +{ + xtensa_rotate_window_abs(env, (env->sregs[PS] & PS_OWB) >> PS_OWB_SHIFT); } void HELPER(restore_owb)(CPUXtensaState *env) { - rotate_window_abs(env, (env->sregs[PS] & PS_OWB) >> PS_OWB_SHIFT); + xtensa_restore_owb(env); } void HELPER(movsp)(CPUXtensaState *env, uint32_t pc) @@ -376,6 +399,8 @@ void HELPER(dump_state)(CPUXtensaState *env) cpu_dump_state(CPU(cpu), stderr, fprintf, 0); } +#ifndef CONFIG_USER_ONLY + void HELPER(waiti)(CPUXtensaState *env, uint32_t pc, uint32_t intlevel) { CPUState *cpu; @@ -888,6 +913,7 @@ void HELPER(wsr_dbreakc)(CPUXtensaState *env, uint32_t i, uint32_t v) } env->sregs[DBREAKC + i] = v; } +#endif void HELPER(wur_fcr)(CPUXtensaState *env, uint32_t v) { @@ -1025,12 +1051,18 @@ void HELPER(ule_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) uint32_t HELPER(rer)(CPUXtensaState *env, uint32_t addr) { +#ifndef CONFIG_USER_ONLY return address_space_ldl(env->address_space_er, addr, MEMTXATTRS_UNSPECIFIED, NULL); +#else + return 0; +#endif } void HELPER(wer)(CPUXtensaState *env, uint32_t data, uint32_t addr) { +#ifndef CONFIG_USER_ONLY address_space_stl(env->address_space_er, addr, data, MEMTXATTRS_UNSPECIFIED, NULL); +#endif } diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c index c06d30d17960..4f6d03059feb 100644 --- a/target/xtensa/translate.c +++ b/target/xtensa/translate.c @@ -345,12 +345,14 @@ static void gen_debug_exception(DisasContext *dc, uint32_t cause) static bool gen_check_privilege(DisasContext *dc) { - if (dc->cring) { - gen_exception_cause(dc, PRIVILEGED_CAUSE); - dc->is_jmp = DISAS_UPDATE; - return false; +#ifndef CONFIG_USER_ONLY + if (!dc->cring) { + return true; } - return true; +#endif + gen_exception_cause(dc, PRIVILEGED_CAUSE); + dc->is_jmp = DISAS_UPDATE; + return false; } static bool gen_check_cpenable(DisasContext *dc, unsigned cp) @@ -498,6 +500,7 @@ static bool gen_check_sr(DisasContext *dc, uint32_t sr, unsigned access) return true; } +#ifndef CONFIG_USER_ONLY static bool gen_rsr_ccount(DisasContext *dc, TCGv_i32 d, uint32_t sr) { if (tb_cflags(dc->tb) & CF_USE_ICOUNT) { @@ -519,14 +522,17 @@ static bool gen_rsr_ptevaddr(DisasContext *dc, TCGv_i32 d, uint32_t sr) tcg_gen_andi_i32(d, d, 0xfffffffc); return false; } +#endif static bool gen_rsr(DisasContext *dc, TCGv_i32 d, uint32_t sr) { static bool (* const rsr_handler[256])(DisasContext *dc, TCGv_i32 d, uint32_t sr) = { +#ifndef CONFIG_USER_ONLY [CCOUNT] = gen_rsr_ccount, [INTSET] = gen_rsr_ccount, [PTEVADDR] = gen_rsr_ptevaddr, +#endif }; if (rsr_handler[sr]) { @@ -582,6 +588,7 @@ static bool gen_wsr_acchi(DisasContext *dc, uint32_t sr, TCGv_i32 s) return false; } +#ifndef CONFIG_USER_ONLY static bool gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v) { gen_helper_wsr_windowbase(cpu_env, v); @@ -797,6 +804,11 @@ static bool gen_wsr_ccompare(DisasContext *dc, uint32_t sr, TCGv_i32 v) } return ret; } +#else +static void gen_check_interrupts(DisasContext *dc) +{ +} +#endif static bool gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32 s) { @@ -808,6 +820,7 @@ static bool gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32 s) [BR] = gen_wsr_br, [LITBASE] = gen_wsr_litbase, [ACCHI] = gen_wsr_acchi, +#ifndef CONFIG_USER_ONLY [WINDOW_BASE] = gen_wsr_windowbase, [WINDOW_START] = gen_wsr_windowstart, [PTEVADDR] = gen_wsr_ptevaddr, @@ -834,6 +847,7 @@ static bool gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32 s) [CCOMPARE] = gen_wsr_ccompare, [CCOMPARE + 1] = gen_wsr_ccompare, [CCOMPARE + 2] = gen_wsr_ccompare, +#endif }; if (wsr_handler[sr]) { @@ -878,6 +892,7 @@ static void gen_load_store_alignment(DisasContext *dc, int shift, } } +#ifndef CONFIG_USER_ONLY static void gen_waiti(DisasContext *dc, uint32_t imm4) { TCGv_i32 pc = tcg_const_i32(dc->next_pc); @@ -894,6 +909,7 @@ static void gen_waiti(DisasContext *dc, uint32_t imm4) tcg_temp_free(intlevel); gen_jumpi_check_loop_end(dc, 0); } +#endif static bool gen_window_check1(DisasContext *dc, unsigned r1) { @@ -1596,12 +1612,14 @@ static void translate_icache(DisasContext *dc, const uint32_t arg[], { if ((!par[0] || gen_check_privilege(dc)) && gen_window_check1(dc, arg[0]) && par[1]) { +#ifndef CONFIG_USER_ONLY TCGv_i32 addr = tcg_temp_new_i32(); tcg_gen_movi_i32(cpu_pc, dc->pc); tcg_gen_addi_i32(addr, cpu_R[arg[0]], arg[1]); gen_helper_itlb_hit_test(cpu_env, addr); tcg_temp_free(addr); +#endif } } @@ -1610,12 +1628,14 @@ static void translate_itlb(DisasContext *dc, const uint32_t arg[], { if (gen_check_privilege(dc) && gen_window_check1(dc, arg[0])) { +#ifndef CONFIG_USER_ONLY TCGv_i32 dtlb = tcg_const_i32(par[0]); gen_helper_itlb(cpu_env, cpu_R[arg[0]], dtlb); /* This could change memory mapping, so exit tb */ gen_jumpi_check_loop_end(dc, -1); tcg_temp_free(dtlb); +#endif } } @@ -1985,11 +2005,13 @@ static void translate_ptlb(DisasContext *dc, const uint32_t arg[], { if (gen_check_privilege(dc) && gen_window_check2(dc, arg[0], arg[1])) { +#ifndef CONFIG_USER_ONLY TCGv_i32 dtlb = tcg_const_i32(par[0]); tcg_gen_movi_i32(cpu_pc, dc->pc); gen_helper_ptlb(cpu_R[arg[0]], cpu_env, cpu_R[arg[1]], dtlb); tcg_temp_free(dtlb); +#endif } } @@ -2173,8 +2195,10 @@ static void translate_rtlb(DisasContext *dc, const uint32_t arg[], { static void (* const helper[])(TCGv_i32 r, TCGv_env env, TCGv_i32 a1, TCGv_i32 a2) = { +#ifndef CONFIG_USER_ONLY gen_helper_rtlb0, gen_helper_rtlb1, +#endif }; if (gen_check_privilege(dc) && @@ -2283,11 +2307,14 @@ static void translate_sext(DisasContext *dc, const uint32_t arg[], static void translate_simcall(DisasContext *dc, const uint32_t arg[], const uint32_t par[]) { +#ifndef CONFIG_USER_ONLY if (semihosting_enabled()) { if (gen_check_privilege(dc)) { gen_helper_simcall(cpu_env); } - } else { + } else +#endif + { qemu_log_mask(LOG_GUEST_ERROR, "SIMCALL but semihosting is disabled\n"); gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); } @@ -2470,7 +2497,9 @@ static void translate_waiti(DisasContext *dc, const uint32_t arg[], const uint32_t par[]) { if (gen_check_privilege(dc)) { +#ifndef CONFIG_USER_ONLY gen_waiti(dc, arg[0]); +#endif } } @@ -2479,12 +2508,14 @@ static void translate_wtlb(DisasContext *dc, const uint32_t arg[], { if (gen_check_privilege(dc) && gen_window_check2(dc, arg[0], arg[1])) { +#ifndef CONFIG_USER_ONLY TCGv_i32 dtlb = tcg_const_i32(par[0]); gen_helper_wtlb(cpu_env, cpu_R[arg[0]], cpu_R[arg[1]], dtlb); /* This could change memory mapping, so exit tb */ gen_jumpi_check_loop_end(dc, -1); tcg_temp_free(dtlb); +#endif } }

[v7,09/11] target/xtensa: add linux-user support

Commit Message

Patch