target-arm: A64: add set_pc cpu method

When executing translation blocks we need to be able to recover our program counter. Add a method to set it for AArch64 CPUs. This covers user-mode, but for system mode emulation we will need to check if the CPU is in an AArch32 execution state. Signed-off-by: Alexander Graf <[email protected]> Signed-off-by: Peter Maydell <[email protected]> Reviewed-by: Richard Henderson <[email protected]>
zhanleewo · Dec 17, 2013 · 5ce4f35 · 5ce4f35
1 parent 40f860c
commit 5ce4f35
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/target-arm/cpu64.c b/target-arm/cpu64.c
@@ -68,11 +68,22 @@ static void aarch64_cpu_finalizefn(Object *obj)
 {
 }
 
+static void aarch64_cpu_set_pc(CPUState *cs, vaddr value)
+{
+    ARMCPU *cpu = ARM_CPU(cs);
+    /*
+     * TODO: this will need updating for system emulation,
+     * when the core may be in AArch32 mode.
+     */
+    cpu->env.pc = value;
+}
+
 static void aarch64_cpu_class_init(ObjectClass *oc, void *data)
 {
     CPUClass *cc = CPU_CLASS(oc);
 
     cc->dump_state = aarch64_cpu_dump_state;
+    cc->set_pc = aarch64_cpu_set_pc;
     cc->gdb_read_register = aarch64_cpu_gdb_read_register;
     cc->gdb_write_register = aarch64_cpu_gdb_write_register;
     cc->gdb_num_core_regs = 34;