4 files changed, 14 insertions, 0 deletions
diff --git a/accel/kvm/kvm-accel-ops.c b/accel/kvm/kvm-accel-ops.c
index 5c0e37514c..fbf4fe3497 100644
--- a/accel/kvm/kvm-accel-ops.c
+++ b/accel/kvm/kvm-accel-ops.c
@@ -99,6 +99,7 @@ static void kvm_accel_ops_class_init(ObjectClass *oc, void *data)
     ops->synchronize_pre_loadvm = kvm_cpu_synchronize_pre_loadvm;
 
 #ifdef KVM_CAP_SET_GUEST_DEBUG
+    ops->supports_guest_debug = kvm_supports_guest_debug;
     ops->insert_breakpoint = kvm_insert_breakpoint;
     ops->remove_breakpoint = kvm_remove_breakpoint;
     ops->remove_all_breakpoints = kvm_remove_all_breakpoints;
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index b8c734fe3a..6ebff6e5a6 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -3287,6 +3287,12 @@ int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap)
     return data.err;
 }
 
+bool kvm_supports_guest_debug(void)
+{
+    /* probed during kvm_init() */
+    return kvm_has_guest_debug;
+}
+
 int kvm_insert_breakpoint(CPUState *cpu, int type, hwaddr addr, hwaddr len)
 {
     struct kvm_sw_breakpoint *bp;
diff --git a/accel/kvm/kvm-cpus.h b/accel/kvm/kvm-cpus.h
index 33e435d62b..fd63fe6a59 100644
--- a/accel/kvm/kvm-cpus.h
+++ b/accel/kvm/kvm-cpus.h
@@ -18,6 +18,7 @@ void kvm_destroy_vcpu(CPUState *cpu);
 void kvm_cpu_synchronize_post_reset(CPUState *cpu);
 void kvm_cpu_synchronize_post_init(CPUState *cpu);
 void kvm_cpu_synchronize_pre_loadvm(CPUState *cpu);
+bool kvm_supports_guest_debug(void);
 int kvm_insert_breakpoint(CPUState *cpu, int type, hwaddr addr, hwaddr len);
 int kvm_remove_breakpoint(CPUState *cpu, int type, hwaddr addr, hwaddr len);
 void kvm_remove_all_breakpoints(CPUState *cpu);
diff --git a/accel/tcg/tcg-accel-ops.c b/accel/tcg/tcg-accel-ops.c
index 965c2ad581..19cbf1db3a 100644
--- a/accel/tcg/tcg-accel-ops.c
+++ b/accel/tcg/tcg-accel-ops.c
@@ -93,6 +93,11 @@ void tcg_handle_interrupt(CPUState *cpu, int mask)
     }
 }
 
+static bool tcg_supports_guest_debug(void)
+{
+    return true;
+}
+
 /* Translate GDB watchpoint type to a flags value for cpu_watchpoint_* */
 static inline int xlat_gdb_type(CPUState *cpu, int gdbtype)
 {
@@ -198,6 +203,7 @@ static void tcg_accel_ops_init(AccelOpsClass *ops)
         }
     }
 
+    ops->supports_guest_debug = tcg_supports_guest_debug;
     ops->insert_breakpoint = tcg_insert_breakpoint;
     ops->remove_breakpoint = tcg_remove_breakpoint;
     ops->remove_all_breakpoints = tcg_remove_all_breakpoints;