[Qemu-devel] [PATCH for-1.4 2/2] target-s390x: Pass S390CPU to s390_{add, del}_running_cpu()

[Andreas Färber]

This prepares for moving the halted field to CPUState.
Most call sites can already supply S390CPU, for some env becomes unused.

Signed-off-by: Andreas Färber <address@hidden>
---
 hw/s390x/ipl.c         |    6 ++++--
 hw/s390x/s390-virtio.c |    8 ++++++--
 target-s390x/cpu.c     |    2 +-
 target-s390x/cpu.h     |    8 ++++----
 target-s390x/helper.c  |    5 +++--
 target-s390x/kvm.c     |   13 +++++--------
 6 Dateien geändert, 23 Zeilen hinzugefügt(+), 19 Zeilen entfernt(-)

diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c
index 86e8415..206d552 100644
--- a/hw/s390x/ipl.c
+++ b/hw/s390x/ipl.c
@@ -58,10 +58,12 @@ typedef struct S390IPLState {
 
 static void s390_ipl_cpu(uint64_t pswaddr)
 {
-    CPUS390XState *env = &S390_CPU(qemu_get_cpu(0))->env;
+    S390CPU *cpu = S390_CPU(qemu_get_cpu(0));
+    CPUS390XState *env = &cpu->env;
+
     env->psw.addr = pswaddr;
     env->psw.mask = IPL_PSW_MASK;
-    s390_add_running_cpu(env);
+    s390_add_running_cpu(cpu);
 }
 
 static int s390_ipl_init(SysBusDevice *dev)
diff --git a/hw/s390x/s390-virtio.c b/hw/s390x/s390-virtio.c
index 2a1d9ac..e25c330 100644
--- a/hw/s390x/s390-virtio.c
+++ b/hw/s390x/s390-virtio.c
@@ -130,8 +130,10 @@ static void s390_virtio_register_hcalls(void)
  */
 static unsigned s390_running_cpus;
 
-void s390_add_running_cpu(CPUS390XState *env)
+void s390_add_running_cpu(S390CPU *cpu)
 {
+    CPUS390XState *env = &cpu->env;
+
     if (env->halted) {
         s390_running_cpus++;
         env->halted = 0;
@@ -139,8 +141,10 @@ void s390_add_running_cpu(CPUS390XState *env)
     }
 }
 
-unsigned s390_del_running_cpu(CPUS390XState *env)
+unsigned s390_del_running_cpu(S390CPU *cpu)
 {
+    CPUS390XState *env = &cpu->env;
+
     if (env->halted == 0) {
         assert(s390_running_cpus >= 1);
         s390_running_cpus--;
diff --git a/target-s390x/cpu.c b/target-s390x/cpu.c
index 0b68db8..c250091 100644
--- a/target-s390x/cpu.c
+++ b/target-s390x/cpu.c
@@ -70,7 +70,7 @@ static void s390_cpu_reset(CPUState *s)
         log_cpu_state(env, 0);
     }
 
-    s390_del_running_cpu(env);
+    s390_del_running_cpu(cpu);
 
     scc->parent_reset(s);
 
diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h
index 41b2d92..01e59b9 100644
--- a/target-s390x/cpu.h
+++ b/target-s390x/cpu.h
@@ -375,8 +375,8 @@ static inline void kvm_s390_interrupt_internal(S390CPU 
*cpu, int type,
 }
 #endif
 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr);
-void s390_add_running_cpu(CPUS390XState *env);
-unsigned s390_del_running_cpu(CPUS390XState *env);
+void s390_add_running_cpu(S390CPU *cpu);
+unsigned s390_del_running_cpu(S390CPU *cpu);
 
 /* service interrupts are floating therefore we must not pass an cpustate */
 void s390_sclp_extint(uint32_t parm);
@@ -385,11 +385,11 @@ void s390_sclp_extint(uint32_t parm);
 extern const hwaddr virtio_size;
 
 #else
-static inline void s390_add_running_cpu(CPUS390XState *env)
+static inline void s390_add_running_cpu(S390CPU *cpu)
 {
 }
 
-static inline unsigned s390_del_running_cpu(CPUS390XState *env)
+static inline unsigned s390_del_running_cpu(S390CPU *cpu)
 {
     return 0;
 }
diff --git a/target-s390x/helper.c b/target-s390x/helper.c
index e6b8e50..55b6d7c 100644
--- a/target-s390x/helper.c
+++ b/target-s390x/helper.c
@@ -441,8 +441,9 @@ hwaddr cpu_get_phys_page_debug(CPUS390XState *env,
 void load_psw(CPUS390XState *env, uint64_t mask, uint64_t addr)
 {
     if (mask & PSW_MASK_WAIT) {
+        S390CPU *cpu = s390_env_get_cpu(env);
         if (!(mask & (PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK))) {
-            if (s390_del_running_cpu(env) == 0) {
+            if (s390_del_running_cpu(cpu) == 0) {
 #ifndef CONFIG_USER_ONLY
                 qemu_system_shutdown_request();
 #endif
@@ -742,7 +743,7 @@ void do_interrupt(CPUS390XState *env)
     qemu_log_mask(CPU_LOG_INT, "%s: %d at pc=%" PRIx64 "\n",
                   __func__, env->exception_index, env->psw.addr);
 
-    s390_add_running_cpu(env);
+    s390_add_running_cpu(cpu);
     /* handle machine checks */
     if ((env->psw.mask & PSW_MASK_MCHECK) &&
         (env->exception_index == -1)) {
diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c
index 2c24182..3929771 100644
--- a/target-s390x/kvm.c
+++ b/target-s390x/kvm.c
@@ -570,12 +570,10 @@ static int handle_diag(CPUS390XState *env, struct kvm_run 
*run, int ipb_code)
 
 static int s390_cpu_restart(S390CPU *cpu)
 {
-    CPUS390XState *env = &cpu->env;
-
     kvm_s390_interrupt(cpu, KVM_S390_RESTART, 0);
-    s390_add_running_cpu(env);
+    s390_add_running_cpu(cpu);
     qemu_cpu_kick(CPU(cpu));
-    dprintf("DONE: SIGP cpu restart: %p\n", env);
+    dprintf("DONE: SIGP cpu restart: %p\n", &cpu->env);
     return 0;
 }
 
@@ -591,7 +589,7 @@ static int s390_cpu_initial_reset(S390CPU *cpu)
     CPUS390XState *env = &cpu->env;
     int i;
 
-    s390_del_running_cpu(env);
+    s390_del_running_cpu(cpu);
     if (kvm_vcpu_ioctl(CPU(cpu), KVM_S390_INITIAL_RESET, NULL) < 0) {
         perror("cannot init reset vcpu");
     }
@@ -701,7 +699,6 @@ static bool is_special_wait_psw(CPUState *cs)
 
 static int handle_intercept(S390CPU *cpu)
 {
-    CPUS390XState *env = &cpu->env;
     CPUState *cs = CPU(cpu);
     struct kvm_run *run = cs->kvm_run;
     int icpt_code = run->s390_sieic.icptcode;
@@ -714,14 +711,14 @@ static int handle_intercept(S390CPU *cpu)
             r = handle_instruction(cpu, run);
             break;
         case ICPT_WAITPSW:
-            if (s390_del_running_cpu(env) == 0 &&
+            if (s390_del_running_cpu(cpu) == 0 &&
                 is_special_wait_psw(cs)) {
                 qemu_system_shutdown_request();
             }
             r = EXCP_HALTED;
             break;
         case ICPT_CPU_STOP:
-            if (s390_del_running_cpu(env) == 0) {
+            if (s390_del_running_cpu(cpu) == 0) {
                 qemu_system_shutdown_request();
             }
             r = EXCP_HALTED;
-- 
1.7.10.4