diff options
| -rw-r--r-- | linux-user/riscv/cpu_loop.c | 15 | ||||
| -rw-r--r-- | target/riscv/cpu.h | 4 | ||||
| -rw-r--r-- | target/riscv/cpu_user.h | 3 |
3 files changed, 20 insertions, 2 deletions
diff --git a/linux-user/riscv/cpu_loop.c b/linux-user/riscv/cpu_loop.c index 4cf3e94..a9bac4c 100644 --- a/linux-user/riscv/cpu_loop.c +++ b/linux-user/riscv/cpu_loop.c @@ -18,8 +18,10 @@ */ #include "qemu/osdep.h" +#include "qemu/error-report.h" #include "qemu.h" #include "cpu_loop-common.h" +#include "elf.h" void cpu_loop(CPURISCVState *env) { @@ -53,7 +55,8 @@ void cpu_loop(CPURISCVState *env) ret = 0; } else { ret = do_syscall(env, - env->gpr[xA7], + env->gpr[(env->elf_flags & EF_RISCV_RVE) + ? xT0 : xA7], env->gpr[xA0], env->gpr[xA1], env->gpr[xA2], @@ -113,6 +116,16 @@ void cpu_loop(CPURISCVState *env) void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs) { + CPUState *cpu = ENV_GET_CPU(env); + TaskState *ts = cpu->opaque; + struct image_info *info = ts->info; + env->pc = regs->sepc; env->gpr[xSP] = regs->sp; + env->elf_flags = info->elf_flags; + + if ((env->misa & RVE) && !(env->elf_flags & EF_RISCV_RVE)) { + error_report("Incompatible ELF: RVE cpu requires RVE ABI binary"); + exit(EXIT_FAILURE); + } } diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index df43a08..20bce87 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -123,6 +123,10 @@ struct CPURISCVState { uint32_t features; +#ifdef CONFIG_USER_ONLY + uint32_t elf_flags; +#endif + #ifndef CONFIG_USER_ONLY target_ulong priv; target_ulong resetvec; diff --git a/target/riscv/cpu_user.h b/target/riscv/cpu_user.h index c219961..52d380a 100644 --- a/target/riscv/cpu_user.h +++ b/target/riscv/cpu_user.h @@ -10,4 +10,5 @@ #define xA4 14 #define xA5 15 #define xA6 16 -#define xA7 17 /* syscall number goes here */ +#define xA7 17 /* syscall number for RVI ABI */ +#define xT0 5 /* syscall number for RVE ABI */ |