From 070f7353339861e92efc44fbdc3103ccf3cae11e Mon Sep 17 00:00:00 2001 From: Song Gao Date: Fri, 24 Jun 2022 11:10:37 +0800 Subject: linux-user: Add LoongArch generic header files MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This includes: - sockbits.h - target_errno_defs.h - target_fcntl.h - termbits.h - target_resource.h - target_structs.h Signed-off-by: Song Gao Signed-off-by: Xiaojuan Yang Reviewed-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: WANG Xuerui Message-Id: <20220624031049.1716097-2-gaosong@loongson.cn> Signed-off-by: Richard Henderson --- linux-user/loongarch64/sockbits.h | 11 +++++++++++ linux-user/loongarch64/target_errno_defs.h | 12 ++++++++++++ linux-user/loongarch64/target_fcntl.h | 11 +++++++++++ linux-user/loongarch64/target_prctl.h | 1 + linux-user/loongarch64/target_resource.h | 11 +++++++++++ linux-user/loongarch64/target_structs.h | 11 +++++++++++ linux-user/loongarch64/termbits.h | 11 +++++++++++ 7 files changed, 68 insertions(+) create mode 100644 linux-user/loongarch64/sockbits.h create mode 100644 linux-user/loongarch64/target_errno_defs.h create mode 100644 linux-user/loongarch64/target_fcntl.h create mode 100644 linux-user/loongarch64/target_prctl.h create mode 100644 linux-user/loongarch64/target_resource.h create mode 100644 linux-user/loongarch64/target_structs.h create mode 100644 linux-user/loongarch64/termbits.h (limited to 'linux-user') diff --git a/linux-user/loongarch64/sockbits.h b/linux-user/loongarch64/sockbits.h new file mode 100644 index 0000000..1cffcae --- /dev/null +++ b/linux-user/loongarch64/sockbits.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +#ifndef LOONGARCH_TARGET_SOCKBITS_H +#define LOONGARCH_TARGET_SOCKBITS_H + +#include "../generic/sockbits.h" + +#endif diff --git a/linux-user/loongarch64/target_errno_defs.h b/linux-user/loongarch64/target_errno_defs.h new file mode 100644 index 0000000..c198b8a --- /dev/null +++ b/linux-user/loongarch64/target_errno_defs.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +#ifndef LOONGARCH_TARGET_ERRNO_DEFS_H +#define LOONGARCH_TARGET_ERRNO_DEFS_H + +/* Target uses generic errno */ +#include "../generic/target_errno_defs.h" + +#endif diff --git a/linux-user/loongarch64/target_fcntl.h b/linux-user/loongarch64/target_fcntl.h new file mode 100644 index 0000000..99bf586 --- /dev/null +++ b/linux-user/loongarch64/target_fcntl.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +#ifndef LOONGARCH_TARGET_FCNTL_H +#define LOONGARCH_TARGET_FCNTL_H + +#include "../generic/fcntl.h" + +#endif diff --git a/linux-user/loongarch64/target_prctl.h b/linux-user/loongarch64/target_prctl.h new file mode 100644 index 0000000..eb53b31 --- /dev/null +++ b/linux-user/loongarch64/target_prctl.h @@ -0,0 +1 @@ +/* No special prctl support required. */ diff --git a/linux-user/loongarch64/target_resource.h b/linux-user/loongarch64/target_resource.h new file mode 100644 index 0000000..0f86bf2 --- /dev/null +++ b/linux-user/loongarch64/target_resource.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +#ifndef LOONGARCH_TARGET_RESOURCE_H +#define LOONGARCH_TARGET_RESOURCE_H + +#include "../generic/target_resource.h" + +#endif diff --git a/linux-user/loongarch64/target_structs.h b/linux-user/loongarch64/target_structs.h new file mode 100644 index 0000000..6041441 --- /dev/null +++ b/linux-user/loongarch64/target_structs.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +#ifndef LOONGARCH_TARGET_STRUCTS_H +#define LOONGARCH_TARGET_STRUCTS_H + +#include "../generic/target_structs.h" + +#endif diff --git a/linux-user/loongarch64/termbits.h b/linux-user/loongarch64/termbits.h new file mode 100644 index 0000000..d425db8 --- /dev/null +++ b/linux-user/loongarch64/termbits.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +#ifndef LOONGARCH_TARGET_TERMBITS_H +#define LOONGARCH_TARGET_TERMBITS_H + +#include "../generic/termbits.h" + +#endif -- cgit v1.1 From 9d5cd6587a70d613087a284763d44ff6fe798149 Mon Sep 17 00:00:00 2001 From: Song Gao Date: Fri, 24 Jun 2022 11:10:38 +0800 Subject: linux-user: Add LoongArch signal support Signed-off-by: Song Gao Signed-off-by: Xiaojuan Yang Message-Id: <20220624031049.1716097-3-gaosong@loongson.cn> [rth: Rework extctx frame allocation and locking; Properly read/write fcc from signal frame.] Signed-off-by: Richard Henderson --- linux-user/loongarch64/signal.c | 335 +++++++++++++++++++++++++++++++++ linux-user/loongarch64/target_signal.h | 13 ++ 2 files changed, 348 insertions(+) create mode 100644 linux-user/loongarch64/signal.c create mode 100644 linux-user/loongarch64/target_signal.h (limited to 'linux-user') diff --git a/linux-user/loongarch64/signal.c b/linux-user/loongarch64/signal.c new file mode 100644 index 0000000..65fd5f3 --- /dev/null +++ b/linux-user/loongarch64/signal.c @@ -0,0 +1,335 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * LoongArch emulation of Linux signals + * + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +#include "qemu/osdep.h" +#include "qemu.h" +#include "user-internals.h" +#include "signal-common.h" +#include "linux-user/trace.h" + +#include "target/loongarch/internals.h" + +/* FP context was used */ +#define SC_USED_FP (1 << 0) + +struct target_sigcontext { + uint64_t sc_pc; + uint64_t sc_regs[32]; + uint32_t sc_flags; + uint64_t sc_extcontext[0] QEMU_ALIGNED(16); +}; + + +#define FPU_CTX_MAGIC 0x46505501 +#define FPU_CTX_ALIGN 8 +struct target_fpu_context { + uint64_t regs[32]; + uint64_t fcc; + uint32_t fcsr; +} QEMU_ALIGNED(FPU_CTX_ALIGN); + +#define CONTEXT_INFO_ALIGN 16 +struct target_sctx_info { + uint32_t magic; + uint32_t size; + uint64_t padding; +} QEMU_ALIGNED(CONTEXT_INFO_ALIGN); + +struct target_ucontext { + abi_ulong tuc_flags; + abi_ptr tuc_link; + target_stack_t tuc_stack; + target_sigset_t tuc_sigmask; + uint8_t __unused[1024 / 8 - sizeof(target_sigset_t)]; + struct target_sigcontext tuc_mcontext; +}; + +struct target_rt_sigframe { + struct target_siginfo rs_info; + struct target_ucontext rs_uc; +}; + +/* + * These two structures are not present in guest memory, are private + * to the signal implementation, but are largely copied from the + * kernel's signal implementation. + */ +struct ctx_layout { + void *haddr; + abi_ptr gaddr; + unsigned int size; +}; + +struct extctx_layout { + unsigned int size; + unsigned int flags; + struct ctx_layout fpu; + struct ctx_layout end; +}; + +/* The kernel's sc_save_fcc macro is a sequence of MOVCF2GR+BSTRINS. */ +static uint64_t read_all_fcc(CPULoongArchState *env) +{ + uint64_t ret = 0; + + for (int i = 0; i < 8; ++i) { + ret |= (uint64_t)env->cf[i] << (i * 8); + } + + return ret; +} + +/* The kernel's sc_restore_fcc macro is a sequence of BSTRPICK+MOVGR2CF. */ +static void write_all_fcc(CPULoongArchState *env, uint64_t val) +{ + for (int i = 0; i < 8; ++i) { + env->cf[i] = (val >> (i * 8)) & 1; + } +} + +static abi_ptr extframe_alloc(struct extctx_layout *extctx, + struct ctx_layout *sctx, unsigned size, + unsigned align, abi_ptr orig_sp) +{ + abi_ptr sp = orig_sp; + + sp -= sizeof(struct target_sctx_info) + size; + align = MAX(align, CONTEXT_INFO_ALIGN); + sp = ROUND_DOWN(sp, align); + sctx->gaddr = sp; + + size = orig_sp - sp; + sctx->size = size; + extctx->size += size; + + return sp; +} + +static abi_ptr setup_extcontext(struct extctx_layout *extctx, abi_ptr sp) +{ + memset(extctx, 0, sizeof(struct extctx_layout)); + + /* Grow down, alloc "end" context info first. */ + sp = extframe_alloc(extctx, &extctx->end, 0, CONTEXT_INFO_ALIGN, sp); + + /* For qemu, there is no lazy fp context switch, so fp always present. */ + extctx->flags = SC_USED_FP; + sp = extframe_alloc(extctx, &extctx->fpu, + sizeof(struct target_rt_sigframe), FPU_CTX_ALIGN, sp); + + return sp; +} + +static void setup_sigframe(CPULoongArchState *env, + struct target_sigcontext *sc, + struct extctx_layout *extctx) +{ + struct target_sctx_info *info; + struct target_fpu_context *fpu_ctx; + int i; + + __put_user(extctx->flags, &sc->sc_flags); + __put_user(env->pc, &sc->sc_pc); + __put_user(0, &sc->sc_regs[0]); + for (i = 1; i < 32; ++i) { + __put_user(env->gpr[i], &sc->sc_regs[i]); + } + + /* + * Set fpu context + */ + info = extctx->fpu.haddr; + __put_user(FPU_CTX_MAGIC, &info->magic); + __put_user(extctx->fpu.size, &info->size); + + fpu_ctx = (struct target_fpu_context *)(info + 1); + for (i = 0; i < 32; ++i) { + __put_user(env->fpr[i], &fpu_ctx->regs[i]); + } + __put_user(read_all_fcc(env), &fpu_ctx->fcc); + __put_user(env->fcsr0, &fpu_ctx->fcsr); + + /* + * Set end context + */ + info = extctx->end.haddr; + __put_user(0, &info->magic); + __put_user(extctx->end.size, &info->size); +} + +static bool parse_extcontext(struct extctx_layout *extctx, abi_ptr frame) +{ + memset(extctx, 0, sizeof(*extctx)); + + while (1) { + uint32_t magic, size; + + if (get_user_u32(magic, frame) || get_user_u32(size, frame + 4)) { + return false; + } + + switch (magic) { + case 0: /* END */ + extctx->end.gaddr = frame; + extctx->end.size = size; + extctx->size += size; + return true; + + case FPU_CTX_MAGIC: + if (size < (sizeof(struct target_sctx_info) + + sizeof(struct target_fpu_context))) { + return false; + } + extctx->fpu.gaddr = frame; + extctx->fpu.size = size; + extctx->size += size; + break; + default: + return false; + } + + frame += size; + } +} + +static void restore_sigframe(CPULoongArchState *env, + struct target_sigcontext *sc, + struct extctx_layout *extctx) +{ + int i; + + __get_user(env->pc, &sc->sc_pc); + for (i = 1; i < 32; ++i) { + __get_user(env->gpr[i], &sc->sc_regs[i]); + } + + if (extctx->fpu.haddr) { + struct target_fpu_context *fpu_ctx = + extctx->fpu.haddr + sizeof(struct target_sctx_info); + uint64_t fcc; + + for (i = 0; i < 32; ++i) { + __get_user(env->fpr[i], &fpu_ctx->regs[i]); + } + __get_user(fcc, &fpu_ctx->fcc); + write_all_fcc(env, fcc); + __get_user(env->fcsr0, &fpu_ctx->fcsr); + restore_fp_status(env); + } +} + +/* + * Determine which stack to use. + */ +static abi_ptr get_sigframe(struct target_sigaction *ka, + CPULoongArchState *env, + struct extctx_layout *extctx) +{ + abi_ulong sp; + + sp = target_sigsp(get_sp_from_cpustate(env), ka); + sp = ROUND_DOWN(sp, 16); + sp = setup_extcontext(extctx, sp); + sp -= sizeof(struct target_rt_sigframe); + + assert(QEMU_IS_ALIGNED(sp, 16)); + + return sp; +} + +void setup_rt_frame(int sig, struct target_sigaction *ka, + target_siginfo_t *info, + target_sigset_t *set, CPULoongArchState *env) +{ + struct target_rt_sigframe *frame; + struct extctx_layout extctx; + abi_ptr frame_addr; + int i; + + frame_addr = get_sigframe(ka, env, &extctx); + trace_user_setup_rt_frame(env, frame_addr); + + frame = lock_user(VERIFY_WRITE, frame_addr, + sizeof(*frame) + extctx.size, 0); + if (!frame) { + force_sigsegv(sig); + return; + } + extctx.fpu.haddr = (void *)frame + (extctx.fpu.gaddr - frame_addr); + extctx.end.haddr = (void *)frame + (extctx.end.gaddr - frame_addr); + + tswap_siginfo(&frame->rs_info, info); + + __put_user(0, &frame->rs_uc.tuc_flags); + __put_user(0, &frame->rs_uc.tuc_link); + target_save_altstack(&frame->rs_uc.tuc_stack, env); + + setup_sigframe(env, &frame->rs_uc.tuc_mcontext, &extctx); + + for (i = 0; i < TARGET_NSIG_WORDS; i++) { + __put_user(set->sig[i], &frame->rs_uc.tuc_sigmask.sig[i]); + } + + env->gpr[4] = sig; + env->gpr[5] = frame_addr + offsetof(struct target_rt_sigframe, rs_info); + env->gpr[6] = frame_addr + offsetof(struct target_rt_sigframe, rs_uc); + env->gpr[3] = frame_addr; + env->gpr[1] = default_rt_sigreturn; + + env->pc = ka->_sa_handler; + unlock_user(frame, frame_addr, sizeof(*frame) + extctx.size); +} + +long do_rt_sigreturn(CPULoongArchState *env) +{ + struct target_rt_sigframe *frame; + struct extctx_layout extctx; + abi_ulong frame_addr; + sigset_t blocked; + + frame_addr = env->gpr[3]; + trace_user_do_rt_sigreturn(env, frame_addr); + + if (!parse_extcontext(&extctx, frame_addr + sizeof(*frame))) { + goto badframe; + } + + frame = lock_user(VERIFY_READ, frame_addr, + sizeof(*frame) + extctx.size, 1); + if (!frame) { + goto badframe; + } + if (extctx.fpu.gaddr) { + extctx.fpu.haddr = (void *)frame + (extctx.fpu.gaddr - frame_addr); + } + + target_to_host_sigset(&blocked, &frame->rs_uc.tuc_sigmask); + set_sigmask(&blocked); + + restore_sigframe(env, &frame->rs_uc.tuc_mcontext, &extctx); + + target_restore_altstack(&frame->rs_uc.tuc_stack, env); + + unlock_user(frame, frame_addr, 0); + return -QEMU_ESIGRETURN; + + badframe: + force_sig(TARGET_SIGSEGV); + return -QEMU_ESIGRETURN; +} + +void setup_sigtramp(abi_ulong sigtramp_page) +{ + uint32_t *tramp = lock_user(VERIFY_WRITE, sigtramp_page, 8, 0); + assert(tramp != NULL); + + __put_user(0x03822c0b, tramp + 0); /* ori a7, zero, 0x8b */ + __put_user(0x002b0000, tramp + 1); /* syscall 0 */ + + default_rt_sigreturn = sigtramp_page; + unlock_user(tramp, sigtramp_page, 8); +} diff --git a/linux-user/loongarch64/target_signal.h b/linux-user/loongarch64/target_signal.h new file mode 100644 index 0000000..ad3aaff --- /dev/null +++ b/linux-user/loongarch64/target_signal.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +#ifndef LOONGARCH_TARGET_SIGNAL_H +#define LOONGARCH_TARGET_SIGNAL_H + +#include "../generic/signal.h" + +#define TARGET_ARCH_HAS_SIGTRAMP_PAGE 1 + +#endif /* LOONGARCH_TARGET_SIGNAL_H */ -- cgit v1.1 From 3418fe25fa9c37fb5428758a234e527af0735e1a Mon Sep 17 00:00:00 2001 From: Song Gao Date: Fri, 24 Jun 2022 11:10:39 +0800 Subject: linux-user: Add LoongArch elf support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Song Gao Signed-off-by: Xiaojuan Yang Reviewed-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20220624031049.1716097-4-gaosong@loongson.cn> Signed-off-by: Richard Henderson --- linux-user/elfload.c | 91 +++++++++++++++++++++++++++++++++++++ linux-user/loongarch64/target_elf.h | 12 +++++ 2 files changed, 103 insertions(+) create mode 100644 linux-user/loongarch64/target_elf.h (limited to 'linux-user') diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 163fc8a..1de77c7 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -922,6 +922,97 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUPPCState *en #endif +#ifdef TARGET_LOONGARCH64 + +#define ELF_START_MMAP 0x80000000 + +#define ELF_CLASS ELFCLASS64 +#define ELF_ARCH EM_LOONGARCH + +#define elf_check_arch(x) ((x) == EM_LOONGARCH) + +static inline void init_thread(struct target_pt_regs *regs, + struct image_info *infop) +{ + /*Set crmd PG,DA = 1,0 */ + regs->csr.crmd = 2 << 3; + regs->csr.era = infop->entry; + regs->regs[3] = infop->start_stack; +} + +/* See linux kernel: arch/loongarch/include/asm/elf.h */ +#define ELF_NREG 45 +typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; + +enum { + TARGET_EF_R0 = 0, + TARGET_EF_CSR_ERA = TARGET_EF_R0 + 33, + TARGET_EF_CSR_BADV = TARGET_EF_R0 + 34, +}; + +static void elf_core_copy_regs(target_elf_gregset_t *regs, + const CPULoongArchState *env) +{ + int i; + + (*regs)[TARGET_EF_R0] = 0; + + for (i = 1; i < ARRAY_SIZE(env->gpr); i++) { + (*regs)[TARGET_EF_R0 + i] = tswapreg(env->gpr[i]); + } + + (*regs)[TARGET_EF_CSR_ERA] = tswapreg(env->pc); + (*regs)[TARGET_EF_CSR_BADV] = tswapreg(env->CSR_BADV); +} + +#define USE_ELF_CORE_DUMP +#define ELF_EXEC_PAGESIZE 4096 + +#define ELF_HWCAP get_elf_hwcap() + +/* See arch/loongarch/include/uapi/asm/hwcap.h */ +enum { + HWCAP_LOONGARCH_CPUCFG = (1 << 0), + HWCAP_LOONGARCH_LAM = (1 << 1), + HWCAP_LOONGARCH_UAL = (1 << 2), + HWCAP_LOONGARCH_FPU = (1 << 3), + HWCAP_LOONGARCH_LSX = (1 << 4), + HWCAP_LOONGARCH_LASX = (1 << 5), + HWCAP_LOONGARCH_CRC32 = (1 << 6), + HWCAP_LOONGARCH_COMPLEX = (1 << 7), + HWCAP_LOONGARCH_CRYPTO = (1 << 8), + HWCAP_LOONGARCH_LVZ = (1 << 9), + HWCAP_LOONGARCH_LBT_X86 = (1 << 10), + HWCAP_LOONGARCH_LBT_ARM = (1 << 11), + HWCAP_LOONGARCH_LBT_MIPS = (1 << 12), +}; + +static uint32_t get_elf_hwcap(void) +{ + LoongArchCPU *cpu = LOONGARCH_CPU(thread_cpu); + uint32_t hwcaps = 0; + + hwcaps |= HWCAP_LOONGARCH_CRC32; + + if (FIELD_EX32(cpu->env.cpucfg[1], CPUCFG1, UAL)) { + hwcaps |= HWCAP_LOONGARCH_UAL; + } + + if (FIELD_EX32(cpu->env.cpucfg[2], CPUCFG2, FP)) { + hwcaps |= HWCAP_LOONGARCH_FPU; + } + + if (FIELD_EX32(cpu->env.cpucfg[2], CPUCFG2, LAM)) { + hwcaps |= HWCAP_LOONGARCH_LAM; + } + + return hwcaps; +} + +#define ELF_PLATFORM "loongarch" + +#endif /* TARGET_LOONGARCH64 */ + #ifdef TARGET_MIPS #define ELF_START_MMAP 0x80000000 diff --git a/linux-user/loongarch64/target_elf.h b/linux-user/loongarch64/target_elf.h new file mode 100644 index 0000000..95c3f05 --- /dev/null +++ b/linux-user/loongarch64/target_elf.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +#ifndef LOONGARCH_TARGET_ELF_H +#define LOONGARCH_TARGET_ELF_H +static inline const char *cpu_get_model(uint32_t eflags) +{ + return "la464"; +} +#endif -- cgit v1.1 From 1f63019632aef190ca927e625966c9864e8cfd07 Mon Sep 17 00:00:00 2001 From: Song Gao Date: Fri, 24 Jun 2022 11:10:40 +0800 Subject: linux-user: Add LoongArch syscall support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Song Gao Signed-off-by: Xiaojuan Yang Reviewed-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20220624031049.1716097-5-gaosong@loongson.cn> Signed-off-by: Richard Henderson --- linux-user/loongarch64/syscall_nr.h | 312 ++++++++++++++++++++++++++++++++ linux-user/loongarch64/target_syscall.h | 48 +++++ linux-user/syscall_defs.h | 6 +- 3 files changed, 365 insertions(+), 1 deletion(-) create mode 100644 linux-user/loongarch64/syscall_nr.h create mode 100644 linux-user/loongarch64/target_syscall.h (limited to 'linux-user') diff --git a/linux-user/loongarch64/syscall_nr.h b/linux-user/loongarch64/syscall_nr.h new file mode 100644 index 0000000..be00915 --- /dev/null +++ b/linux-user/loongarch64/syscall_nr.h @@ -0,0 +1,312 @@ +/* + * This file contains the system call numbers. + * Do not modify. + * This file is generated by scripts/gensyscalls.sh + */ +#ifndef LINUX_USER_LOONGARCH_SYSCALL_NR_H +#define LINUX_USER_LOONGARCH_SYSCALL_NR_H + +#define TARGET_NR_io_setup 0 +#define TARGET_NR_io_destroy 1 +#define TARGET_NR_io_submit 2 +#define TARGET_NR_io_cancel 3 +#define TARGET_NR_io_getevents 4 +#define TARGET_NR_setxattr 5 +#define TARGET_NR_lsetxattr 6 +#define TARGET_NR_fsetxattr 7 +#define TARGET_NR_getxattr 8 +#define TARGET_NR_lgetxattr 9 +#define TARGET_NR_fgetxattr 10 +#define TARGET_NR_listxattr 11 +#define TARGET_NR_llistxattr 12 +#define TARGET_NR_flistxattr 13 +#define TARGET_NR_removexattr 14 +#define TARGET_NR_lremovexattr 15 +#define TARGET_NR_fremovexattr 16 +#define TARGET_NR_getcwd 17 +#define TARGET_NR_lookup_dcookie 18 +#define TARGET_NR_eventfd2 19 +#define TARGET_NR_epoll_create1 20 +#define TARGET_NR_epoll_ctl 21 +#define TARGET_NR_epoll_pwait 22 +#define TARGET_NR_dup 23 +#define TARGET_NR_dup3 24 +#define TARGET_NR_fcntl 25 +#define TARGET_NR_inotify_init1 26 +#define TARGET_NR_inotify_add_watch 27 +#define TARGET_NR_inotify_rm_watch 28 +#define TARGET_NR_ioctl 29 +#define TARGET_NR_ioprio_set 30 +#define TARGET_NR_ioprio_get 31 +#define TARGET_NR_flock 32 +#define TARGET_NR_mknodat 33 +#define TARGET_NR_mkdirat 34 +#define TARGET_NR_unlinkat 35 +#define TARGET_NR_symlinkat 36 +#define TARGET_NR_linkat 37 +#define TARGET_NR_umount2 39 +#define TARGET_NR_mount 40 +#define TARGET_NR_pivot_root 41 +#define TARGET_NR_nfsservctl 42 +#define TARGET_NR_statfs 43 +#define TARGET_NR_fstatfs 44 +#define TARGET_NR_truncate 45 +#define TARGET_NR_ftruncate 46 +#define TARGET_NR_fallocate 47 +#define TARGET_NR_faccessat 48 +#define TARGET_NR_chdir 49 +#define TARGET_NR_fchdir 50 +#define TARGET_NR_chroot 51 +#define TARGET_NR_fchmod 52 +#define TARGET_NR_fchmodat 53 +#define TARGET_NR_fchownat 54 +#define TARGET_NR_fchown 55 +#define TARGET_NR_openat 56 +#define TARGET_NR_close 57 +#define TARGET_NR_vhangup 58 +#define TARGET_NR_pipe2 59 +#define TARGET_NR_quotactl 60 +#define TARGET_NR_getdents64 61 +#define TARGET_NR_lseek 62 +#define TARGET_NR_read 63 +#define TARGET_NR_write 64 +#define TARGET_NR_readv 65 +#define TARGET_NR_writev 66 +#define TARGET_NR_pread64 67 +#define TARGET_NR_pwrite64 68 +#define TARGET_NR_preadv 69 +#define TARGET_NR_pwritev 70 +#define TARGET_NR_sendfile 71 +#define TARGET_NR_pselect6 72 +#define TARGET_NR_ppoll 73 +#define TARGET_NR_signalfd4 74 +#define TARGET_NR_vmsplice 75 +#define TARGET_NR_splice 76 +#define TARGET_NR_tee 77 +#define TARGET_NR_readlinkat 78 +#define TARGET_NR_sync 81 +#define TARGET_NR_fsync 82 +#define TARGET_NR_fdatasync 83 +#define TARGET_NR_sync_file_range 84 +#define TARGET_NR_timerfd_create 85 +#define TARGET_NR_timerfd_settime 86 +#define TARGET_NR_timerfd_gettime 87 +#define TARGET_NR_utimensat 88 +#define TARGET_NR_acct 89 +#define TARGET_NR_capget 90 +#define TARGET_NR_capset 91 +#define TARGET_NR_personality 92 +#define TARGET_NR_exit 93 +#define TARGET_NR_exit_group 94 +#define TARGET_NR_waitid 95 +#define TARGET_NR_set_tid_address 96 +#define TARGET_NR_unshare 97 +#define TARGET_NR_futex 98 +#define TARGET_NR_set_robust_list 99 +#define TARGET_NR_get_robust_list 100 +#define TARGET_NR_nanosleep 101 +#define TARGET_NR_getitimer 102 +#define TARGET_NR_setitimer 103 +#define TARGET_NR_kexec_load 104 +#define TARGET_NR_init_module 105 +#define TARGET_NR_delete_module 106 +#define TARGET_NR_timer_create 107 +#define TARGET_NR_timer_gettime 108 +#define TARGET_NR_timer_getoverrun 109 +#define TARGET_NR_timer_settime 110 +#define TARGET_NR_timer_delete 111 +#define TARGET_NR_clock_settime 112 +#define TARGET_NR_clock_gettime 113 +#define TARGET_NR_clock_getres 114 +#define TARGET_NR_clock_nanosleep 115 +#define TARGET_NR_syslog 116 +#define TARGET_NR_ptrace 117 +#define TARGET_NR_sched_setparam 118 +#define TARGET_NR_sched_setscheduler 119 +#define TARGET_NR_sched_getscheduler 120 +#define TARGET_NR_sched_getparam 121 +#define TARGET_NR_sched_setaffinity 122 +#define TARGET_NR_sched_getaffinity 123 +#define TARGET_NR_sched_yield 124 +#define TARGET_NR_sched_get_priority_max 125 +#define TARGET_NR_sched_get_priority_min 126 +#define TARGET_NR_sched_rr_get_interval 127 +#define TARGET_NR_restart_syscall 128 +#define TARGET_NR_kill 129 +#define TARGET_NR_tkill 130 +#define TARGET_NR_tgkill 131 +#define TARGET_NR_sigaltstack 132 +#define TARGET_NR_rt_sigsuspend 133 +#define TARGET_NR_rt_sigaction 134 +#define TARGET_NR_rt_sigprocmask 135 +#define TARGET_NR_rt_sigpending 136 +#define TARGET_NR_rt_sigtimedwait 137 +#define TARGET_NR_rt_sigqueueinfo 138 +#define TARGET_NR_rt_sigreturn 139 +#define TARGET_NR_setpriority 140 +#define TARGET_NR_getpriority 141 +#define TARGET_NR_reboot 142 +#define TARGET_NR_setregid 143 +#define TARGET_NR_setgid 144 +#define TARGET_NR_setreuid 145 +#define TARGET_NR_setuid 146 +#define TARGET_NR_setresuid 147 +#define TARGET_NR_getresuid 148 +#define TARGET_NR_setresgid 149 +#define TARGET_NR_getresgid 150 +#define TARGET_NR_setfsuid 151 +#define TARGET_NR_setfsgid 152 +#define TARGET_NR_times 153 +#define TARGET_NR_setpgid 154 +#define TARGET_NR_getpgid 155 +#define TARGET_NR_getsid 156 +#define TARGET_NR_setsid 157 +#define TARGET_NR_getgroups 158 +#define TARGET_NR_setgroups 159 +#define TARGET_NR_uname 160 +#define TARGET_NR_sethostname 161 +#define TARGET_NR_setdomainname 162 +#define TARGET_NR_getrusage 165 +#define TARGET_NR_umask 166 +#define TARGET_NR_prctl 167 +#define TARGET_NR_getcpu 168 +#define TARGET_NR_gettimeofday 169 +#define TARGET_NR_settimeofday 170 +#define TARGET_NR_adjtimex 171 +#define TARGET_NR_getpid 172 +#define TARGET_NR_getppid 173 +#define TARGET_NR_getuid 174 +#define TARGET_NR_geteuid 175 +#define TARGET_NR_getgid 176 +#define TARGET_NR_getegid 177 +#define TARGET_NR_gettid 178 +#define TARGET_NR_sysinfo 179 +#define TARGET_NR_mq_open 180 +#define TARGET_NR_mq_unlink 181 +#define TARGET_NR_mq_timedsend 182 +#define TARGET_NR_mq_timedreceive 183 +#define TARGET_NR_mq_notify 184 +#define TARGET_NR_mq_getsetattr 185 +#define TARGET_NR_msgget 186 +#define TARGET_NR_msgctl 187 +#define TARGET_NR_msgrcv 188 +#define TARGET_NR_msgsnd 189 +#define TARGET_NR_semget 190 +#define TARGET_NR_semctl 191 +#define TARGET_NR_semtimedop 192 +#define TARGET_NR_semop 193 +#define TARGET_NR_shmget 194 +#define TARGET_NR_shmctl 195 +#define TARGET_NR_shmat 196 +#define TARGET_NR_shmdt 197 +#define TARGET_NR_socket 198 +#define TARGET_NR_socketpair 199 +#define TARGET_NR_bind 200 +#define TARGET_NR_listen 201 +#define TARGET_NR_accept 202 +#define TARGET_NR_connect 203 +#define TARGET_NR_getsockname 204 +#define TARGET_NR_getpeername 205 +#define TARGET_NR_sendto 206 +#define TARGET_NR_recvfrom 207 +#define TARGET_NR_setsockopt 208 +#define TARGET_NR_getsockopt 209 +#define TARGET_NR_shutdown 210 +#define TARGET_NR_sendmsg 211 +#define TARGET_NR_recvmsg 212 +#define TARGET_NR_readahead 213 +#define TARGET_NR_brk 214 +#define TARGET_NR_munmap 215 +#define TARGET_NR_mremap 216 +#define TARGET_NR_add_key 217 +#define TARGET_NR_request_key 218 +#define TARGET_NR_keyctl 219 +#define TARGET_NR_clone 220 +#define TARGET_NR_execve 221 +#define TARGET_NR_mmap 222 +#define TARGET_NR_fadvise64 223 +#define TARGET_NR_swapon 224 +#define TARGET_NR_swapoff 225 +#define TARGET_NR_mprotect 226 +#define TARGET_NR_msync 227 +#define TARGET_NR_mlock 228 +#define TARGET_NR_munlock 229 +#define TARGET_NR_mlockall 230 +#define TARGET_NR_munlockall 231 +#define TARGET_NR_mincore 232 +#define TARGET_NR_madvise 233 +#define TARGET_NR_remap_file_pages 234 +#define TARGET_NR_mbind 235 +#define TARGET_NR_get_mempolicy 236 +#define TARGET_NR_set_mempolicy 237 +#define TARGET_NR_migrate_pages 238 +#define TARGET_NR_move_pages 239 +#define TARGET_NR_rt_tgsigqueueinfo 240 +#define TARGET_NR_perf_event_open 241 +#define TARGET_NR_accept4 242 +#define TARGET_NR_recvmmsg 243 +#define TARGET_NR_arch_specific_syscall 244 +#define TARGET_NR_wait4 260 +#define TARGET_NR_prlimit64 261 +#define TARGET_NR_fanotify_init 262 +#define TARGET_NR_fanotify_mark 263 +#define TARGET_NR_name_to_handle_at 264 +#define TARGET_NR_open_by_handle_at 265 +#define TARGET_NR_clock_adjtime 266 +#define TARGET_NR_syncfs 267 +#define TARGET_NR_setns 268 +#define TARGET_NR_sendmmsg 269 +#define TARGET_NR_process_vm_readv 270 +#define TARGET_NR_process_vm_writev 271 +#define TARGET_NR_kcmp 272 +#define TARGET_NR_finit_module 273 +#define TARGET_NR_sched_setattr 274 +#define TARGET_NR_sched_getattr 275 +#define TARGET_NR_renameat2 276 +#define TARGET_NR_seccomp 277 +#define TARGET_NR_getrandom 278 +#define TARGET_NR_memfd_create 279 +#define TARGET_NR_bpf 280 +#define TARGET_NR_execveat 281 +#define TARGET_NR_userfaultfd 282 +#define TARGET_NR_membarrier 283 +#define TARGET_NR_mlock2 284 +#define TARGET_NR_copy_file_range 285 +#define TARGET_NR_preadv2 286 +#define TARGET_NR_pwritev2 287 +#define TARGET_NR_pkey_mprotect 288 +#define TARGET_NR_pkey_alloc 289 +#define TARGET_NR_pkey_free 290 +#define TARGET_NR_statx 291 +#define TARGET_NR_io_pgetevents 292 +#define TARGET_NR_rseq 293 +#define TARGET_NR_kexec_file_load 294 +#define TARGET_NR_pidfd_send_signal 424 +#define TARGET_NR_io_uring_setup 425 +#define TARGET_NR_io_uring_enter 426 +#define TARGET_NR_io_uring_register 427 +#define TARGET_NR_open_tree 428 +#define TARGET_NR_move_mount 429 +#define TARGET_NR_fsopen 430 +#define TARGET_NR_fsconfig 431 +#define TARGET_NR_fsmount 432 +#define TARGET_NR_fspick 433 +#define TARGET_NR_pidfd_open 434 +#define TARGET_NR_clone3 435 +#define TARGET_NR_close_range 436 +#define TARGET_NR_openat2 437 +#define TARGET_NR_pidfd_getfd 438 +#define TARGET_NR_faccessat2 439 +#define TARGET_NR_process_madvise 440 +#define TARGET_NR_epoll_pwait2 441 +#define TARGET_NR_mount_setattr 442 +#define TARGET_NR_quotactl_fd 443 +#define TARGET_NR_landlock_create_ruleset 444 +#define TARGET_NR_landlock_add_rule 445 +#define TARGET_NR_landlock_restrict_self 446 +#define TARGET_NR_process_mrelease 448 +#define TARGET_NR_futex_waitv 449 +#define TARGET_NR_set_mempolicy_home_node 450 +#define TARGET_NR_syscalls 451 + +#endif /* LINUX_USER_LOONGARCH_SYSCALL_NR_H */ diff --git a/linux-user/loongarch64/target_syscall.h b/linux-user/loongarch64/target_syscall.h new file mode 100644 index 0000000..8b5de52 --- /dev/null +++ b/linux-user/loongarch64/target_syscall.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +#ifndef LOONGARCH_TARGET_SYSCALL_H +#define LOONGARCH_TARGET_SYSCALL_H + +#include "qemu/units.h" + +/* + * this struct defines the way the registers are stored on the + * stack during a system call. + */ + +struct target_pt_regs { + /* Saved main processor registers. */ + target_ulong regs[32]; + + /* Saved special registers. */ + struct { + target_ulong era; + target_ulong badv; + target_ulong crmd; + target_ulong prmd; + target_ulong euen; + target_ulong ecfg; + target_ulong estat; + } csr; + target_ulong orig_a0; + target_ulong __last[0]; +}; + +#define UNAME_MACHINE "loongarch64" +#define UNAME_MINIMUM_RELEASE "5.19.0" + +#define TARGET_MCL_CURRENT 1 +#define TARGET_MCL_FUTURE 2 +#define TARGET_MCL_ONFAULT 4 + +#define TARGET_FORCE_SHMLBA + +static inline abi_ulong target_shmlba(CPULoongArchState *env) +{ + return 64 * KiB; +} + +#endif diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index 4587b62..85b0f33 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -74,7 +74,7 @@ || defined(TARGET_M68K) || defined(TARGET_CRIS) \ || defined(TARGET_S390X) || defined(TARGET_OPENRISC) \ || defined(TARGET_NIOS2) || defined(TARGET_RISCV) \ - || defined(TARGET_XTENSA) + || defined(TARGET_XTENSA) || defined(TARGET_LOONGARCH64) #define TARGET_IOC_SIZEBITS 14 #define TARGET_IOC_DIRBITS 2 @@ -2196,6 +2196,10 @@ struct target_stat64 { uint64_t st_ino; }; +#elif defined(TARGET_LOONGARCH64) + +/* LoongArch no newfstatat/fstat syscall. */ + #else #error unsupported CPU #endif -- cgit v1.1 From da8c70ea82de0d5387d04b33de2bcf5cbe7afe86 Mon Sep 17 00:00:00 2001 From: Song Gao Date: Fri, 24 Jun 2022 11:10:41 +0800 Subject: linux-user: Add LoongArch cpu_loop support Signed-off-by: Song Gao Signed-off-by: Xiaojuan Yang Reviewed-by: Richard Henderson Message-Id: <20220624031049.1716097-6-gaosong@loongson.cn> Signed-off-by: Richard Henderson --- linux-user/loongarch64/cpu_loop.c | 96 +++++++++++++++++++++++++++++++++++++ linux-user/loongarch64/target_cpu.h | 34 +++++++++++++ 2 files changed, 130 insertions(+) create mode 100644 linux-user/loongarch64/cpu_loop.c create mode 100644 linux-user/loongarch64/target_cpu.h (limited to 'linux-user') diff --git a/linux-user/loongarch64/cpu_loop.c b/linux-user/loongarch64/cpu_loop.c new file mode 100644 index 0000000..894fdd1 --- /dev/null +++ b/linux-user/loongarch64/cpu_loop.c @@ -0,0 +1,96 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * QEMU LoongArch user cpu_loop. + * + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +#include "qemu/osdep.h" +#include "qemu.h" +#include "user-internals.h" +#include "cpu_loop-common.h" +#include "signal-common.h" + +void cpu_loop(CPULoongArchState *env) +{ + CPUState *cs = env_cpu(env); + int trapnr, si_code; + abi_long ret; + + for (;;) { + cpu_exec_start(cs); + trapnr = cpu_exec(cs); + cpu_exec_end(cs); + process_queued_cpu_work(cs); + + switch (trapnr) { + case EXCP_INTERRUPT: + /* just indicate that signals should be handled asap */ + break; + case EXCCODE_SYS: + env->pc += 4; + ret = do_syscall(env, env->gpr[11], + env->gpr[4], env->gpr[5], + env->gpr[6], env->gpr[7], + env->gpr[8], env->gpr[9], + -1, -1); + if (ret == -QEMU_ERESTARTSYS) { + env->pc -= 4; + break; + } + if (ret == -QEMU_ESIGRETURN) { + /* + * Returning from a successful sigreturn syscall. + * Avoid clobbering register state. + */ + break; + } + env->gpr[4] = ret; + break; + case EXCCODE_INE: + force_sig_fault(TARGET_SIGILL, 0, env->pc); + break; + case EXCCODE_FPE: + si_code = TARGET_FPE_FLTUNK; + if (GET_FP_CAUSE(env->fcsr0) & FP_INVALID) { + si_code = TARGET_FPE_FLTINV; + } else if (GET_FP_CAUSE(env->fcsr0) & FP_DIV0) { + si_code = TARGET_FPE_FLTDIV; + } else if (GET_FP_CAUSE(env->fcsr0) & FP_OVERFLOW) { + si_code = TARGET_FPE_FLTOVF; + } else if (GET_FP_CAUSE(env->fcsr0) & FP_UNDERFLOW) { + si_code = TARGET_FPE_FLTUND; + } else if (GET_FP_CAUSE(env->fcsr0) & FP_INEXACT) { + si_code = TARGET_FPE_FLTRES; + } + force_sig_fault(TARGET_SIGFPE, si_code, env->pc); + break; + case EXCP_DEBUG: + case EXCCODE_BRK: + force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT, env->pc); + break; + case EXCCODE_BCE: + force_sig_fault(TARGET_SIGSYS, TARGET_SI_KERNEL, env->pc); + break; + case EXCP_ATOMIC: + cpu_exec_step_atomic(cs); + break; + default: + EXCP_DUMP(env, "qemu: unhandled CPU exception 0x%x - aborting\n", + trapnr); + exit(EXIT_FAILURE); + } + process_pending_signals(env); + } +} + +void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs) +{ + int i; + + for (i = 0; i < 32; i++) { + env->gpr[i] = regs->regs[i]; + } + env->pc = regs->csr.era; + +} diff --git a/linux-user/loongarch64/target_cpu.h b/linux-user/loongarch64/target_cpu.h new file mode 100644 index 0000000..a29af66 --- /dev/null +++ b/linux-user/loongarch64/target_cpu.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * LoongArch specific CPU ABI and functions for linux-user + * + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +#ifndef LOONGARCH_TARGET_CPU_H +#define LOONGARCH_TARGET_CPU_H + +static inline void cpu_clone_regs_child(CPULoongArchState *env, + target_ulong newsp, unsigned flags) +{ + if (newsp) { + env->gpr[3] = newsp; + } + env->gpr[4] = 0; +} + +static inline void cpu_clone_regs_parent(CPULoongArchState *env, + unsigned flags) +{ +} + +static inline void cpu_set_tls(CPULoongArchState *env, target_ulong newtls) +{ + env->gpr[2] = newtls; +} + +static inline abi_ulong get_sp_from_cpustate(CPULoongArchState *state) +{ + return state->gpr[3]; +} +#endif -- cgit v1.1