hw/boards: Add a MachineState parameter to kvm_type callback

On ARM, the kvm_type will be resolved by querying the KVMState.
Let's add the MachineState handle to the callback so that we
can retrieve the  KVMState handle. in kvm_init, when the callback
is called, the kvm_state variable is not yet set.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20190304101339.25970-5-eric.auger@redhat.com
[ppc parts]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/include/hw/boards.h b/include/hw/boards.h
index 21212f0859..9690c71a6d 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -156,6 +156,9 @@ typedef struct {
  *    should instead use "unimplemented-device" for all memory ranges where
  *    the guest will attempt to probe for a device that QEMU doesn't
  *    implement and a stub device is required.
+ * @kvm_type:
+ *    Return the type of KVM corresponding to the kvm-type string option or
+ *    computed based on other criteria such as the host kernel capabilities.
  */
 struct MachineClass {
     /*< private >*/
@@ -171,7 +174,7 @@ struct MachineClass {
     void (*init)(MachineState *state);
     void (*reset)(void);
     void (*hot_add_cpu)(const int64_t id, Error **errp);
-    int (*kvm_type)(const char *arg);
+    int (*kvm_type)(MachineState *machine, const char *arg);
 
     BlockInterfaceType block_default_type;
     int units_per_default_bus;