s390x/kvm: Handle bpb feature

[mirror_qemu.git] / target / s390x / machine.c

diff --git a/target/s390x/machine.c b/target/s390x/machine.c
index 097a147dbb3fcd81a7ce17e1428993aeb603c5fd..84b49287557136a0184a43a519a79d537e62328c 100644 (file)
--- a/target/s390x/machine.c
+++ b/target/s390x/machine.c
@@ -37,13 +37,15 @@ static int cpu_post_load(void *opaque, int version_id)
     return 0;
 }
 
-static void cpu_pre_save(void *opaque)
+static int cpu_pre_save(void *opaque)
 {
     S390CPU *cpu = opaque;
 
     if (kvm_enabled()) {
         kvm_s390_vcpu_interrupt_pre_save(cpu);
     }
+
+    return 0;
 }
 
 static inline bool fpu_needed(void *opaque)
@@ -178,7 +180,7 @@ const VMStateDescription vmstate_exval = {
 
 static bool gscb_needed(void *opaque)
 {
-    return kvm_s390_get_gs();
+    return s390_has_feat(S390_FEAT_GUARDED_STORAGE);
 }
 
 const VMStateDescription vmstate_gscb = {
@@ -192,6 +194,22 @@ const VMStateDescription vmstate_gscb = {
         }
 };
 
+static bool bpbc_needed(void *opaque)
+{
+    return s390_has_feat(S390_FEAT_BPB);
+}
+
+const VMStateDescription vmstate_bpbc = {
+    .name = "cpu/bpbc",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .needed = bpbc_needed,
+    .fields = (VMStateField[]) {
+        VMSTATE_BOOL(env.bpbc, S390CPU),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
 const VMStateDescription vmstate_s390_cpu = {
     .name = "cpu",
     .post_load = cpu_post_load,
@@ -226,6 +244,7 @@ const VMStateDescription vmstate_s390_cpu = {
         &vmstate_riccb,
         &vmstate_exval,
         &vmstate_gscb,
+        &vmstate_bpbc,
         NULL
     },
 };