OvmfPkg/PvScsiDxe: Report name of driver

Install Component Name protocols to have a nice display name for the
driver in places such as UEFI shell.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Liran Alon <liran.alon@oracle.com>
Message-Id: <20200328200100.60786-4-liran.alon@oracle.com>
Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>

OvmfPkg/PvScsiDxe/PvScsi.c

@@ -68,6 +68,61 @@ STATIC EFI_DRIVER_BINDING_PROTOCOL mPvScsiDriverBinding = {
   NULL  // DriverBindingHandle, filled as well
 };
 
+//
+// Component Name
+//
+
+STATIC EFI_UNICODE_STRING_TABLE mDriverNameTable[] = {
+  { "eng;en", L"PVSCSI Host Driver" },
+  { NULL,     NULL                  }
+};
+
+STATIC EFI_COMPONENT_NAME_PROTOCOL mComponentName;
+
+STATIC
+EFI_STATUS
+EFIAPI
+PvScsiGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL *This,
+  IN  CHAR8                       *Language,
+  OUT CHAR16                      **DriverName
+  )
+{
+  return LookupUnicodeString2 (
+           Language,
+           This->SupportedLanguages,
+           mDriverNameTable,
+           DriverName,
+           (BOOLEAN)(This == &mComponentName) // Iso639Language
+           );
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+PvScsiGetDeviceName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL *This,
+  IN  EFI_HANDLE                  DeviceHandle,
+  IN  EFI_HANDLE                  ChildHandle,
+  IN  CHAR8                       *Language,
+  OUT CHAR16                      **ControllerName
+  )
+{
+  return EFI_UNSUPPORTED;
+}
+
+STATIC EFI_COMPONENT_NAME_PROTOCOL mComponentName = {
+  &PvScsiGetDriverName,
+  &PvScsiGetDeviceName,
+  "eng" // SupportedLanguages, ISO 639-2 language codes
+};
+
+STATIC EFI_COMPONENT_NAME2_PROTOCOL mComponentName2 = {
+  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME)     &PvScsiGetDriverName,
+  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) &PvScsiGetDeviceName,
+  "en" // SupportedLanguages, RFC 4646 language codes
+};
+
 //
 // Entry Point
 //
@@ -84,7 +139,7 @@ PvScsiEntryPoint (
            SystemTable,
            &mPvScsiDriverBinding,
            ImageHandle,
-           NULL, // TODO Component name
+           &mComponentName,
-           NULL  // TODO Component name
+           &mComponentName2
            );
 }