[Qemu-devel] [PATCH v2 10/23] target/arm: Move the v7-M Security State helpers to v7m_helper

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 target/arm/helper.c     | 73 -----------------------------------------
 target/arm/v7m_helper.c | 73 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+), 73 deletions(-)

diff --git a/target/arm/helper.c b/target/arm/helper.c
index b4fd9b42d7..cf76010ea1 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -7885,79 +7885,6 @@ void HELPER(v7m_preserve_fp_state)(CPUARMState *env)
      */
 }
 
-/*
- * Write to v7M CONTROL.SPSEL bit for the specified security bank.
- * This may change the current stack pointer between Main and Process
- * stack pointers if it is done for the CONTROL register for the current
- * security state.
- */
-void write_v7m_control_spsel_for_secstate(CPUARMState *env,
-                                          bool new_spsel,
-                                          bool secstate)
-{
-    bool old_is_psp = v7m_using_psp(env);
-
-    env->v7m.control[secstate] =
-        deposit32(env->v7m.control[secstate],
-                  R_V7M_CONTROL_SPSEL_SHIFT,
-                  R_V7M_CONTROL_SPSEL_LENGTH, new_spsel);
-
-    if (secstate == env->v7m.secure) {
-        bool new_is_psp = v7m_using_psp(env);
-        uint32_t tmp;
-
-        if (old_is_psp != new_is_psp) {
-            tmp = env->v7m.other_sp;
-            env->v7m.other_sp = env->regs[13];
-            env->regs[13] = tmp;
-        }
-    }
-}
-
-/*
- * Write to v7M CONTROL.SPSEL bit. This may change the current
- * stack pointer between Main and Process stack pointers.
- */
-void write_v7m_control_spsel(CPUARMState *env, bool new_spsel)
-{
-    write_v7m_control_spsel_for_secstate(env, new_spsel, env->v7m.secure);
-}
-
-/* Switch M profile security state between NS and S */
-void switch_v7m_security_state(CPUARMState *env, bool new_secstate)
-{
-    uint32_t new_ss_msp, new_ss_psp;
-
-    if (env->v7m.secure == new_secstate) {
-        return;
-    }
-
-    /*
-     * All the banked state is accessed by looking at env->v7m.secure
-     * except for the stack pointer; rearrange the SP appropriately.
-     */
-    new_ss_msp = env->v7m.other_ss_msp;
-    new_ss_psp = env->v7m.other_ss_psp;
-
-    if (v7m_using_psp(env)) {
-        env->v7m.other_ss_psp = env->regs[13];
-        env->v7m.other_ss_msp = env->v7m.other_sp;
-    } else {
-        env->v7m.other_ss_msp = env->regs[13];
-        env->v7m.other_ss_psp = env->v7m.other_sp;
-    }
-
-    env->v7m.secure = new_secstate;
-
-    if (v7m_using_psp(env)) {
-        env->regs[13] = new_ss_psp;
-        env->v7m.other_sp = new_ss_msp;
-    } else {
-        env->regs[13] = new_ss_msp;
-        env->v7m.other_sp = new_ss_psp;
-    }
-}
-
 static uint32_t *get_v7m_sp_ptr(CPUARMState *env, bool secure, bool threadmode,
                                 bool spsel)
 {
diff --git a/target/arm/v7m_helper.c b/target/arm/v7m_helper.c
index 321154966e..558e143039 100644
--- a/target/arm/v7m_helper.c
+++ b/target/arm/v7m_helper.c
@@ -88,6 +88,79 @@ uint32_t HELPER(v7m_tt)(CPUARMState *env, uint32_t addr, uint32_t op)
 
 #else
 
+/*
+ * Write to v7M CONTROL.SPSEL bit for the specified security bank.
+ * This may change the current stack pointer between Main and Process
+ * stack pointers if it is done for the CONTROL register for the current
+ * security state.
+ */
+void write_v7m_control_spsel_for_secstate(CPUARMState *env,
+                                          bool new_spsel,
+                                          bool secstate)
+{
+    bool old_is_psp = v7m_using_psp(env);
+
+    env->v7m.control[secstate] =
+        deposit32(env->v7m.control[secstate],
+                  R_V7M_CONTROL_SPSEL_SHIFT,
+                  R_V7M_CONTROL_SPSEL_LENGTH, new_spsel);
+
+    if (secstate == env->v7m.secure) {
+        bool new_is_psp = v7m_using_psp(env);
+        uint32_t tmp;
+
+        if (old_is_psp != new_is_psp) {
+            tmp = env->v7m.other_sp;
+            env->v7m.other_sp = env->regs[13];
+            env->regs[13] = tmp;
+        }
+    }
+}
+
+/*
+ * Write to v7M CONTROL.SPSEL bit. This may change the current
+ * stack pointer between Main and Process stack pointers.
+ */
+void write_v7m_control_spsel(CPUARMState *env, bool new_spsel)
+{
+    write_v7m_control_spsel_for_secstate(env, new_spsel, env->v7m.secure);
+}
+
+/* Switch M profile security state between NS and S */
+void switch_v7m_security_state(CPUARMState *env, bool new_secstate)
+{
+    uint32_t new_ss_msp, new_ss_psp;
+
+    if (env->v7m.secure == new_secstate) {
+        return;
+    }
+
+    /*
+     * All the banked state is accessed by looking at env->v7m.secure
+     * except for the stack pointer; rearrange the SP appropriately.
+     */
+    new_ss_msp = env->v7m.other_ss_msp;
+    new_ss_psp = env->v7m.other_ss_psp;
+
+    if (v7m_using_psp(env)) {
+        env->v7m.other_ss_psp = env->regs[13];
+        env->v7m.other_ss_msp = env->v7m.other_sp;
+    } else {
+        env->v7m.other_ss_msp = env->regs[13];
+        env->v7m.other_ss_psp = env->v7m.other_sp;
+    }
+
+    env->v7m.secure = new_secstate;
+
+    if (v7m_using_psp(env)) {
+        env->regs[13] = new_ss_psp;
+        env->v7m.other_sp = new_ss_msp;
+    } else {
+        env->regs[13] = new_ss_msp;
+        env->v7m.other_sp = new_ss_psp;
+    }
+}
+
 void HELPER(v7m_bxns)(CPUARMState *env, uint32_t dest)
 {
     /*
-- 
2.20.1