ppc/pef: switch to use confidential_guest_kvm_init/reset()

Use the unified interface to call confidential guest related kvm_init()
and kvm_reset(), to avoid exposing pef specific functions.

As a bonus, pef.h goes away since there is no direct call from sPAPR
board code to PEF code anymore.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

hw/ppc/pef.c

@@ -15,7 +15,6 @@
 #include "sysemu/kvm.h"
 #include "migration/blocker.h"
 #include "exec/confidential-guest-support.h"
-#include "hw/ppc/pef.h"
 
 #define TYPE_PEF_GUEST "pef-guest"
 OBJECT_DECLARE_SIMPLE_TYPE(PefGuest, PEF_GUEST)
@@ -93,7 +92,7 @@ static int kvmppc_svm_off(Error **errp)
 #endif
 }
 
-int pef_kvm_init(ConfidentialGuestSupport *cgs, Error **errp)
+static int pef_kvm_init(ConfidentialGuestSupport *cgs, Error **errp)
 {
     if (!object_dynamic_cast(OBJECT(cgs), TYPE_PEF_GUEST)) {
         return 0;
@@ -107,7 +106,7 @@ int pef_kvm_init(ConfidentialGuestSupport *cgs, Error **errp)
     return kvmppc_svm_init(cgs, errp);
 }
 
-int pef_kvm_reset(ConfidentialGuestSupport *cgs, Error **errp)
+static int pef_kvm_reset(ConfidentialGuestSupport *cgs, Error **errp)
 {
     if (!object_dynamic_cast(OBJECT(cgs), TYPE_PEF_GUEST)) {
         return 0;
@@ -131,6 +130,10 @@ OBJECT_DEFINE_TYPE_WITH_INTERFACES(PefGuest,
 
 static void pef_guest_class_init(ObjectClass *oc, void *data)
 {
+    ConfidentialGuestSupportClass *klass = CONFIDENTIAL_GUEST_SUPPORT_CLASS(oc);
+
+    klass->kvm_init = pef_kvm_init;
+    klass->kvm_reset = pef_kvm_reset;
 }
 
 static void pef_guest_init(Object *obj)

hw/ppc/spapr.c

@@ -75,6 +75,7 @@
 #include "hw/virtio/vhost-scsi-common.h"
 
 #include "exec/ram_addr.h"
+#include "exec/confidential-guest-support.h"
 #include "hw/usb.h"
 #include "qemu/config-file.h"
 #include "qemu/error-report.h"
@@ -87,7 +88,6 @@
 #include "hw/ppc/spapr_tpm_proxy.h"
 #include "hw/ppc/spapr_nvdimm.h"
 #include "hw/ppc/spapr_numa.h"
-#include "hw/ppc/pef.h"
 
 #include "monitor/monitor.h"
 
@@ -1715,7 +1715,9 @@ static void spapr_machine_reset(MachineState *machine, ShutdownCause reason)
         qemu_guest_getrandom_nofail(spapr->fdt_rng_seed, 32);
     }
 
-    pef_kvm_reset(machine->cgs, &error_fatal);
+    if (machine->cgs) {
+        confidential_guest_kvm_reset(machine->cgs, &error_fatal);
+    }
     spapr_caps_apply(spapr);
     spapr_nested_reset(spapr);
 
@@ -2841,7 +2843,9 @@ static void spapr_machine_init(MachineState *machine)
     /*
      * if Secure VM (PEF) support is configured, then initialize it
      */
-    pef_kvm_init(machine->cgs, &error_fatal);
+    if (machine->cgs) {
+        confidential_guest_kvm_init(machine->cgs, &error_fatal);
+    }
 
     msi_nonbroken = true;