qemu-kvm/kvm-ppc-pef-switch-to-use-confidential_guest_kvm_init-re.patch

From cfb109b393e019398a52f66a5ff0e9581c841335 Mon Sep 17 00:00:00 2001
From: Xiaoyao Li <xiaoyao.li@intel.com>
Date: Thu, 29 Feb 2024 01:00:37 -0500
Subject: [PATCH 013/100] ppc/pef: switch to use
 confidential_guest_kvm_init/reset()

RH-Author: Paolo Bonzini <pbonzini@redhat.com>
RH-MergeRequest: 245: SEV-SNP support
RH-Jira: RHEL-39544
RH-Acked-by: Thomas Huth <thuth@redhat.com>
RH-Acked-by: Bandan Das <bdas@redhat.com>
RH-Acked-by: Vitaly Kuznetsov <vkuznets@redhat.com>
RH-Commit: [13/91] e25c498fc79a4c8e22ca41d9cbd06e40b4cf1f11 (bonzini/rhel-qemu-kvm)

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>
(cherry picked from commit 00a238b1a845fd5f0acd771664c5e184a63ed9b6)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/ppc/pef.c         |  9 ++++++---
 hw/ppc/spapr.c       | 10 +++++++---
 include/hw/ppc/pef.h | 17 -----------------
 3 files changed, 13 insertions(+), 23 deletions(-)
 delete mode 100644 include/hw/ppc/pef.h

diff --git a/hw/ppc/pef.c b/hw/ppc/pef.c
index d28ed3ba73..47553348b1 100644
--- a/hw/ppc/pef.c
+++ b/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)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index a258d81846..6f6f0fd790 100644
--- a/hw/ppc/spapr.c
+++ b/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);
     if (spapr->svm_allowed) {
@@ -2844,7 +2846,9 @@ 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;
 
diff --git a/include/hw/ppc/pef.h b/include/hw/ppc/pef.h
deleted file mode 100644
index 707dbe524c..0000000000
--- a/include/hw/ppc/pef.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * PEF (Protected Execution Facility) for POWER support
- *
- * Copyright Red Hat.
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#ifndef HW_PPC_PEF_H
-#define HW_PPC_PEF_H
-
-int pef_kvm_init(ConfidentialGuestSupport *cgs, Error **errp);
-int pef_kvm_reset(ConfidentialGuestSupport *cgs, Error **errp);
-
-#endif /* HW_PPC_PEF_H */
-- 
2.39.3