diff options
Diffstat (limited to 'target-microblaze')
| -rw-r--r-- | target-microblaze/cpu.h | 3 | ||||
| -rw-r--r-- | target-microblaze/op_helper.c | 27 |
2 files changed, 30 insertions, 0 deletions
diff --git a/target-microblaze/cpu.h b/target-microblaze/cpu.h index 5dc2b7d5c7..1bf4875ecf 100644 --- a/target-microblaze/cpu.h +++ b/target-microblaze/cpu.h @@ -323,4 +323,7 @@ static inline void cpu_get_tb_cpu_state(CPUState *env, target_ulong *pc, env->iflags |= env->sregs[SR_MSR] & MSR_EE; *flags = env->iflags & IFLAGS_TB_MASK; } + +void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec, + int is_asi, int size); #endif diff --git a/target-microblaze/op_helper.c b/target-microblaze/op_helper.c index a5b3827354..2cc4ced174 100644 --- a/target-microblaze/op_helper.c +++ b/target-microblaze/op_helper.c @@ -245,3 +245,30 @@ void helper_mmu_write(uint32_t rn, uint32_t v) mmu_write(env, rn, v); } #endif + +void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec, + int is_asi, int size) +{ + CPUState *saved_env; + /* XXX: hack to restore env in all cases, even if not called from + generated code */ + saved_env = env; + env = cpu_single_env; + qemu_log("Unassigned " TARGET_FMT_plx " wr=%d exe=%d\n", + addr, is_write, is_exec); + if (!(env->sregs[SR_MSR] & MSR_EE)) { + return; + } + + if (is_exec) { + if (!(env->pvr.regs[2] & PVR2_IOPB_BUS_EXC_MASK)) { + env->sregs[SR_ESR] = ESR_EC_INSN_BUS; + helper_raise_exception(EXCP_HW_EXCP); + } + } else { + if (!(env->pvr.regs[2] & PVR2_DOPB_BUS_EXC_MASK)) { + env->sregs[SR_ESR] = ESR_EC_DATA_BUS; + helper_raise_exception(EXCP_HW_EXCP); + } + } +} |