diff options
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/cpu_ldst.h | 2 | ||||
| -rw-r--r-- | include/exec/cpu_ldst_useronly_template.h | 14 | ||||
| -rw-r--r-- | include/exec/exec-all.h | 11 |
3 files changed, 25 insertions, 2 deletions
diff --git a/include/exec/cpu_ldst.h b/include/exec/cpu_ldst.h index 6eb5fe80dc..191f2e962a 100644 --- a/include/exec/cpu_ldst.h +++ b/include/exec/cpu_ldst.h @@ -76,6 +76,8 @@ #if defined(CONFIG_USER_ONLY) +extern __thread uintptr_t helper_retaddr; + /* In user-only mode we provide only the _code and _data accessors. */ #define MEMSUFFIX _data diff --git a/include/exec/cpu_ldst_useronly_template.h b/include/exec/cpu_ldst_useronly_template.h index 7b8c7c506e..c168f31bba 100644 --- a/include/exec/cpu_ldst_useronly_template.h +++ b/include/exec/cpu_ldst_useronly_template.h @@ -73,7 +73,11 @@ glue(glue(glue(cpu_ld, USUFFIX), MEMSUFFIX), _ra)(CPUArchState *env, target_ulong ptr, uintptr_t retaddr) { - return glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(env, ptr); + RES_TYPE ret; + helper_retaddr = retaddr; + ret = glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(env, ptr); + helper_retaddr = 0; + return ret; } #if DATA_SIZE <= 2 @@ -93,7 +97,11 @@ glue(glue(glue(cpu_lds, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env, target_ulong ptr, uintptr_t retaddr) { - return glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(env, ptr); + int ret; + helper_retaddr = retaddr; + ret = glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(env, ptr); + helper_retaddr = 0; + return ret; } #endif @@ -116,7 +124,9 @@ glue(glue(glue(cpu_st, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env, RES_TYPE v, uintptr_t retaddr) { + helper_retaddr = retaddr; glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(env, ptr, v); + helper_retaddr = 0; } #endif diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index 923ece3e9b..0f51c92adb 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -45,6 +45,17 @@ void restore_state_to_opc(CPUArchState *env, struct TranslationBlock *tb, target_ulong *data); void cpu_gen_init(void); + +/** + * cpu_restore_state: + * @cpu: the vCPU state is to be restore to + * @searched_pc: the host PC the fault occurred at + * @return: true if state was restored, false otherwise + * + * Attempt to restore the state for a fault occurring in translated + * code. If the searched_pc is not in translated code no state is + * restored and the function returns false. + */ bool cpu_restore_state(CPUState *cpu, uintptr_t searched_pc); void QEMU_NORETURN cpu_loop_exit_noexc(CPUState *cpu); |