The ReinstallProtocolInterface boot time service is implemented.
Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
lib/efi_loader/efi_boottime.c | 66 +++++++++++++++++++++++------------
1 file changed, 43 insertions(+), 23 deletions(-)
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index bfaef29d3e6..8abbdfcec4c 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -1022,29 +1022,6 @@ out:
return EFI_EXIT(r);
}
-/*
- * Reinstall protocol interface.
- *
- * This function implements the ReinstallProtocolInterface service.
- * See the Unified Extensible Firmware Interface (UEFI) specification
- * for details.
- *
- * @handle handle on which the protocol shall be
- * reinstalled
- * @protocol GUID of the protocol to be installed
- * @old_interface interface to be removed
- * @new_interface interface to be installed
- * @return status code
- */
-static efi_status_t EFIAPI efi_reinstall_protocol_interface(
- efi_handle_t handle, const efi_guid_t *protocol,
- void *old_interface, void *new_interface)
-{
- EFI_ENTRY("%p, %pUl, %p, %p", handle, protocol, old_interface,
- new_interface);
- return EFI_EXIT(EFI_ACCESS_DENIED);
-}
-
/*
* Get all drivers associated to a controller.
* The allocated buffer has to be freed with free().
@@ -2775,6 +2752,49 @@ out:
return EFI_EXIT(ret);
}
+/*
+ * Reinstall protocol interface.
+ *
+ * This function implements the ReinstallProtocolInterface service.
+ * See the Unified Extensible Firmware Interface (UEFI) specification
+ * for details.
+ *
+ * The old interface is uninstalled. The new interface is installed.
+ * Drivers are connected.
+ *
+ * @handle handle on which the protocol shall be
+ * reinstalled
+ * @protocol GUID of the protocol to be installed
+ * @old_interface interface to be removed
+ * @new_interface interface to be installed
+ * @return status code
+ */
+static efi_status_t EFIAPI efi_reinstall_protocol_interface(
+ efi_handle_t handle, const efi_guid_t *protocol,
+ void *old_interface, void *new_interface)
+{
+ efi_status_t ret;
+
+ EFI_ENTRY("%p, %pUl, %p, %p", handle, protocol, old_interface,
+ new_interface);
+ ret = EFI_CALL(efi_uninstall_protocol_interface(handle, protocol,
+ old_interface));
+ if (ret != EFI_SUCCESS)
+ goto out;
+ ret = EFI_CALL(efi_install_protocol_interface(&handle, protocol,
+ EFI_NATIVE_INTERFACE,
+ new_interface));
+ if (ret != EFI_SUCCESS)
+ goto out;
+ /*
+ * The returned status code has to be ignored.
+ * Do not create an error if no suitable driver for the handle exists.
+ */
+ EFI_CALL(efi_connect_controller(handle, NULL, NULL, true));
+out:
+ return EFI_EXIT(ret);
+}
+
/*
* Get all child controllers associated to a driver.
* The allocated buffer has to be freed with free().
--
2.17.0
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