#include <assert.h> #include "cpu.h" #include "dyngen-exec.h" #include "helper.h" #include "host-utils.h" #include "hw/lm32_pic.h" #include "hw/lm32_juart.h" #if !defined(CONFIG_USER_ONLY) #define MMUSUFFIX _mmu #define SHIFT 0 #include "softmmu_template.h" #define SHIFT 1 #include "softmmu_template.h" #define SHIFT 2 #include "softmmu_template.h" #define SHIFT 3 #include "softmmu_template.h" void helper_raise_exception(uint32_t index) { env->exception_index = index; cpu_loop_exit(env); } void helper_hlt(void) { env->halted = 1; env->exception_index = EXCP_HLT; cpu_loop_exit(env); } void helper_wcsr_im(uint32_t im) { lm32_pic_set_im(env->pic_state, im); } void helper_wcsr_ip(uint32_t im) { lm32_pic_set_ip(env->pic_state, im); } void helper_wcsr_jtx(uint32_t jtx) { lm32_juart_set_jtx(env->juart_state, jtx); } void helper_wcsr_jrx(uint32_t jrx) { lm32_juart_set_jrx(env->juart_state, jrx); } uint32_t helper_rcsr_im(void) { return lm32_pic_get_im(env->pic_state); } uint32_t helper_rcsr_ip(void) { return lm32_pic_get_ip(env->pic_state); } uint32_t helper_rcsr_jtx(void) { return lm32_juart_get_jtx(env->juart_state); } uint32_t helper_rcsr_jrx(void) { return lm32_juart_get_jrx(env->juart_state); } /* Try to fill the TLB and return an exception if error. If retaddr is NULL, it means that the function was called in C code (i.e. not from generated code or from helper.c) */ /* XXX: fix it to restore all registers */ void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr) { TranslationBlock *tb; CPUState *saved_env; unsigned long pc; int ret; /* XXX: hack to restore env in all cases, even if not called from generated code */ saved_env = env; env = cpu_single_env; ret = cpu_lm32_handle_mmu_fault(env, addr, is_write, mmu_idx); if (unlikely(ret)) { if (retaddr) { /* now we have a real cpu fault */ pc = (unsigned long)retaddr; tb = tb_find_pc(pc); if (tb) { /* the PC is inside the translated code. It means that we have a virtual CPU fault */ cpu_restore_state(tb, env, pc); } } cpu_loop_exit(env); } env = saved_env; } #endif