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target/hppa: Implement unaligned access trap 

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2017-10-29 16:31:08 +01:00
parent 1a19da0da4
commit 08aec8b53c
1 changed files with 18 additions and 1 deletions
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19
target/hppa/cpu.c
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@ -48,6 +48,23 @@ static void hppa_cpu_disas_set_info(CPUState *cs, disassemble_info *info)
info->print_insn = print_insn_hppa;
}
static void hppa_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
MMUAccessType access_type,
int mmu_idx, uintptr_t retaddr)
{
HPPACPU *cpu = HPPA_CPU(cs);
CPUHPPAState *env = &cpu->env;
cs->exception_index = EXCP_UNALIGN;
if (env->psw & PSW_Q) {
/* ??? Needs tweaking for hppa64. */
env->cr[CR_IOR] = addr;
env->cr[CR_ISR] = addr >> 32;
}
cpu_loop_exit_restore(cs, retaddr);
}
static void hppa_cpu_realizefn(DeviceState *dev, Error **errp)
{
CPUState *cs = CPU(dev);
@ -139,7 +156,7 @@ static void hppa_cpu_class_init(ObjectClass *oc, void *data)
#else
cc->get_phys_page_debug = hppa_cpu_get_phys_page_debug;
#endif
cc->do_unaligned_access = hppa_cpu_do_unaligned_access;
cc->disas_set_info = hppa_cpu_disas_set_info;
cc->tcg_initialize = hppa_translate_init;