s390x/kvm: reuse kvm_s390_reset_vcpu() to get rid of ifdefs

This patch reuses kvm_s390_reset_vcpu() to get rid of some CONFIG_KVM and
CONFIG_USER_ONLY ifdefs in cpu.c.

In order to get rid of CONFIG_USER_ONLY, kvm_s390_reset_vcpu() has to provide a
dummy implementation - the two definitions are moved to the proper section in
cpu.h.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
CC: Andreas Faerber <afaerber@suse.de>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>

diff --git a/target-s390x/cpu.c b/target-s390x/cpu.c
index 9dbb0dfcdb985b49f2da8580b07380a0496b110d..ec7df90dcd7affbcbbfdfef7e444b0dbc3cf23ba 100644 (file)
--- a/target-s390x/cpu.c
+++ b/target-s390x/cpu.c
@@ -117,14 +117,10 @@ static void s390_cpu_initial_reset(CPUState *s)
 
     env->pfault_token = -1UL;
 
-#if defined(CONFIG_KVM)
     /* Reset state inside the kernel that we cannot access yet from QEMU. */
     if (kvm_enabled()) {
-        if (kvm_vcpu_ioctl(s, KVM_S390_INITIAL_RESET, NULL)) {
-            perror("Initial CPU reset failed");
-        }
+        kvm_s390_reset_vcpu(cpu);
     }
-#endif
 }
 
 /* CPUClass:reset() */
@@ -145,11 +141,10 @@ static void s390_cpu_full_reset(CPUState *s)
 
     env->pfault_token = -1UL;
 
-#if !defined(CONFIG_USER_ONLY)
+    /* Reset state inside the kernel that we cannot access yet from QEMU. */
     if (kvm_enabled()) {
         kvm_s390_reset_vcpu(cpu);
     }
-#endif
     tlb_flush(s, 1);
 }
 

diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h
index 6b3aaed84296be65e1ef7660e39316b087389e18..fe2f95d0840a6699598907c165c1bf075289cc9e 100644 (file)
--- a/target-s390x/cpu.h
+++ b/target-s390x/cpu.h
@@ -389,16 +389,12 @@ int s390_virtio_hypercall(CPUS390XState *env);
 void s390_virtio_irq(int config_change, uint64_t token);
 
 #ifdef CONFIG_KVM
-void kvm_s390_reset_vcpu(S390CPU *cpu);
 void kvm_s390_virtio_irq(int config_change, uint64_t token);
 void kvm_s390_service_interrupt(uint32_t parm);
 void kvm_s390_vcpu_interrupt(S390CPU *cpu, struct kvm_s390_irq *irq);
 void kvm_s390_floating_interrupt(struct kvm_s390_irq *irq);
 int kvm_s390_inject_flic(struct kvm_s390_irq *irq);
 #else
-static inline void kvm_s390_reset_vcpu(S390CPU *cpu)
-{
-}
 static inline void kvm_s390_virtio_irq(int config_change, uint64_t token)
 {
 }
@@ -1073,6 +1069,7 @@ int kvm_s390_cpu_restart(S390CPU *cpu);
 int kvm_s390_get_memslot_count(KVMState *s);
 void kvm_s390_clear_cmma_callback(void *opaque);
 int kvm_s390_set_cpu_state(S390CPU *cpu, uint8_t cpu_state);
+void kvm_s390_reset_vcpu(S390CPU *cpu);
 #else
 static inline void kvm_s390_io_interrupt(uint16_t subchannel_id,
                                         uint16_t subchannel_nr,
@@ -1107,6 +1104,9 @@ static inline int kvm_s390_set_cpu_state(S390CPU *cpu, uint8_t cpu_state)
 {
     return -ENOSYS;
 }
+static inline void kvm_s390_reset_vcpu(S390CPU *cpu)
+{
+}
 #endif
 
 static inline void cmma_reset(S390CPU *cpu)

diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c
index 7c90b186312ac2395d6e6ddd6d58269ad60aeab3..e4c4c8dc188c40edc7ea625d718cab3aadb8a891 100644 (file)
--- a/target-s390x/kvm.c
+++ b/target-s390x/kvm.c
@@ -198,7 +198,7 @@ void kvm_s390_reset_vcpu(S390CPU *cpu)
      * Before this ioctl cpu_synchronize_state() is called in common kvm
      * code (kvm-all) */
     if (kvm_vcpu_ioctl(cs, KVM_S390_INITIAL_RESET, NULL)) {
-        perror("Can't reset vcpu\n");
+        error_report("Initial CPU reset failed on CPU %i\n", cs->cpu_index);
     }
 }