Patch queue for efi - 2017-07-04

Highlights this time: bugfixes. With these changes, OpenBSD should
 be more happy.
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Merge tag 'signed-efi-next' of git://github.com/agraf/u-boot

Patch queue for efi - 2017-07-04

Highlights this time: bugfixes. With these changes, OpenBSD should
be more happy.

MAINTAINERS

@@ -264,6 +264,7 @@ F:	test/dm/
 EFI PAYLOAD
 M:	Alexander Graf <agraf@suse.de>
 S:	Maintained
+T:	git git://github.com/agraf/u-boot.git
 F:	include/efi_loader.h
 F:	lib/efi_loader/
 F:	cmd/bootefi.c

cmd/bootefi.c

@@ -133,7 +133,13 @@ static void *copy_fdt(void *fdt)
 			       &new_fdt_addr) != EFI_SUCCESS) {
 		/* If we can't put it there, put it somewhere */
 		new_fdt_addr = (ulong)memalign(4096, fdt_size);
+		if (efi_allocate_pages(1, EFI_BOOT_SERVICES_DATA, fdt_pages,
+				       &new_fdt_addr) != EFI_SUCCESS) {
+			printf("ERROR: Failed to reserve space for FDT\n");
+			return NULL;
+		}
 	}
+
 	new_fdt = (void*)(ulong)new_fdt_addr;
 	memcpy(new_fdt, fdt, fdt_totalsize(fdt));
 	fdt_set_totalsize(new_fdt, fdt_size);

include/efi_api.h

@@ -28,6 +28,9 @@ enum efi_event_type {
 	EFI_TIMER_RELATIVE = 2
 };
 
+#define EVT_NOTIFY_WAIT		0x00000100
+#define EVT_NOTIFY_SIGNAL	0x00000200
+
 /* EFI Boot Services table */
 struct efi_boot_services {
 	struct efi_table_hdr hdr;

lib/efi_loader/efi_boottime.c

@@ -104,9 +104,9 @@ static void EFIAPI efi_restore_tpl(unsigned long old_tpl)
 	EFI_EXIT(efi_unsupported(__func__));
 }
 
-efi_status_t EFIAPI efi_allocate_pages_ext(int type, int memory_type,
-					   unsigned long pages,
-					   uint64_t *memory)
+static efi_status_t EFIAPI efi_allocate_pages_ext(int type, int memory_type,
+						  unsigned long pages,
+						  uint64_t *memory)
 {
 	efi_status_t r;
 
@@ -115,7 +115,8 @@ efi_status_t EFIAPI efi_allocate_pages_ext(int type, int memory_type,
 	return EFI_EXIT(r);
 }
 
-efi_status_t EFIAPI efi_free_pages_ext(uint64_t memory, unsigned long pages)
+static efi_status_t EFIAPI efi_free_pages_ext(uint64_t memory,
+					      unsigned long pages)
 {
 	efi_status_t r;
 
@@ -124,11 +125,12 @@ efi_status_t EFIAPI efi_free_pages_ext(uint64_t memory, unsigned long pages)
 	return EFI_EXIT(r);
 }
 
-efi_status_t EFIAPI efi_get_memory_map_ext(unsigned long *memory_map_size,
-					   struct efi_mem_desc *memory_map,
-					   unsigned long *map_key,
-					   unsigned long *descriptor_size,
-					   uint32_t *descriptor_version)
+static efi_status_t EFIAPI efi_get_memory_map_ext(
+					unsigned long *memory_map_size,
+					struct efi_mem_desc *memory_map,
+					unsigned long *map_key,
+					unsigned long *descriptor_size,
+					uint32_t *descriptor_version)
 {
 	efi_status_t r;
 
@@ -189,6 +191,16 @@ static efi_status_t EFIAPI efi_create_event(
 		return EFI_EXIT(EFI_OUT_OF_RESOURCES);
 	}
 
+	if (event == NULL)
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+	if ((type & EVT_NOTIFY_SIGNAL) && (type & EVT_NOTIFY_WAIT))
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+	if ((type & (EVT_NOTIFY_SIGNAL|EVT_NOTIFY_WAIT)) &&
+	    notify_function == NULL)
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
 	efi_event.type = type;
 	efi_event.notify_tpl = notify_tpl;
 	efi_event.notify_function = notify_function;
@@ -210,7 +222,9 @@ void efi_timer_check(void)
 		/* Triggering! */
 		if (efi_event.trigger_type == EFI_TIMER_PERIODIC)
 			efi_event.trigger_next += efi_event.trigger_time / 10;
-		efi_event.notify_function(&efi_event, efi_event.notify_context);
+		if (efi_event.type & (EVT_NOTIFY_WAIT | EVT_NOTIFY_SIGNAL))
+			efi_event.notify_function(&efi_event,
+			                          efi_event.notify_context);
 	}
 
 	WATCHDOG_RESET();
@@ -738,8 +752,8 @@ static efi_status_t EFIAPI efi_handle_protocol(void *handle,
 					       efi_guid_t *protocol,
 					       void **protocol_interface)
 {
-	return efi_open_protocol(handle, protocol, protocol_interface,
-				 NULL, NULL, 0);
+	return efi_open_protocol(handle, protocol, protocol_interface, NULL,
+				 NULL, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL);
 }
 
 static const struct efi_boot_services efi_boot_services = {

lib/efi_loader/efi_image_loader.c

@@ -26,7 +26,7 @@ efi_status_t EFIAPI efi_return_handle(void *handle, efi_guid_t *protocol,
 	return EFI_SUCCESS;
 }
 
-static void efi_loader_relocate(const IMAGE_BASE_RELOCATION *rel,
+static efi_status_t efi_loader_relocate(const IMAGE_BASE_RELOCATION *rel,
 			unsigned long rel_size, void *efi_reloc)
 {
 	const IMAGE_BASE_RELOCATION *end;
@@ -63,11 +63,13 @@ static void efi_loader_relocate(const IMAGE_BASE_RELOCATION *rel,
 			default:
 				printf("Unknown Relocation off %x type %x\n",
 				       offset, type);
+				return EFI_LOAD_ERROR;
 			}
 			relocs++;
 		}
 		rel = (const IMAGE_BASE_RELOCATION *)relocs;
 	}
+	return EFI_SUCCESS;
 }
 
 void __weak invalidate_icache_all(void)
@@ -171,7 +173,11 @@ void *efi_load_pe(void *efi, struct efi_loaded_image *loaded_image_info)
 	}
 
 	/* Run through relocations */
-	efi_loader_relocate(rel, rel_size, efi_reloc);
+	if (efi_loader_relocate(rel, rel_size, efi_reloc) != EFI_SUCCESS) {
+		efi_free_pages((uintptr_t) efi_reloc,
+			       (virt_size + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT);
+		return NULL;
+	}
 
 	/* Flush cache */
 	flush_cache((ulong)efi_reloc,