@@ -23,7 +23,10 @@
#include "qom/object.h"
#define TYPE_CONFIDENTIAL_GUEST_SUPPORT "confidential-guest-support"
-OBJECT_DECLARE_SIMPLE_TYPE(ConfidentialGuestSupport, CONFIDENTIAL_GUEST_SUPPORT)
+OBJECT_DECLARE_TYPE(ConfidentialGuestSupport,
+ ConfidentialGuestSupportClass,
+ CONFIDENTIAL_GUEST_SUPPORT)
+
struct ConfidentialGuestSupport {
Object parent;
@@ -55,8 +58,37 @@ struct ConfidentialGuestSupport {
typedef struct ConfidentialGuestSupportClass {
ObjectClass parent;
+
+ int (*kvm_init)(ConfidentialGuestSupport *cgs, Error **errp);
+ int (*kvm_reset)(ConfidentialGuestSupport *cgs, Error **errp);
} ConfidentialGuestSupportClass;
+static inline int confidential_guest_kvm_init(ConfidentialGuestSupport *cgs,
+ Error **errp)
+{
+ ConfidentialGuestSupportClass *klass;
+
+ klass = CONFIDENTIAL_GUEST_SUPPORT_GET_CLASS(cgs);
+ if (klass->kvm_init) {
+ return klass->kvm_init(cgs, errp);
+ }
+
+ return 0;
+}
+
+static inline int confidential_guest_kvm_reset(ConfidentialGuestSupport *cgs,
+ Error **errp)
+{
+ ConfidentialGuestSupportClass *klass;
+
+ klass = CONFIDENTIAL_GUEST_SUPPORT_GET_CLASS(cgs);
+ if (klass->kvm_reset) {
+ return klass->kvm_reset(cgs, errp);
+ }
+
+ return 0;
+}
+
#endif /* !CONFIG_USER_ONLY */
#endif /* QEMU_CONFIDENTIAL_GUEST_SUPPORT_H */
Different confidential VMs in different architectures all have the same needs to do their specific initialization (and maybe resetting) stuffs with KVM. Currently each of them exposes individual *_kvm_init() functions and let machine code or kvm code to call it. To make it more object oriented, add two virtual functions, kvm_init() and kvm_reset() in ConfidentialGuestSupportClass, and expose two helpers functions for invodking them. Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com> --- Changes since rfc v1: - Drop the NULL check and rely the check from the caller; --- include/exec/confidential-guest-support.h | 34 ++++++++++++++++++++++- 1 file changed, 33 insertions(+), 1 deletion(-)