diff mbox series

[13/38] target/hppa: Implement unaligned access trap

Message ID 20171229063145.29167-14-richard.henderson@linaro.org
State Superseded
Headers show
Series Add hppa-softmmu | expand

Commit Message

Richard Henderson Dec. 29, 2017, 6:31 a.m. UTC 
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 target/hppa/cpu.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

-- 
2.14.3
diff mbox series

Patch

diff --git a/target/hppa/cpu.c b/target/hppa/cpu.c
index ca619578dd..6b2d22118d 100644
--- a/target/hppa/cpu.c
+++ b/target/hppa/cpu.c
@@ -48,6 +48,21 @@  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;
+    /* ??? 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 +154,7 @@  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;