* SPDX-License-Identifier: GPL-2.0+
*/
-/* #define DEBUG_EFI */
-
#include <common.h>
#include <efi_loader.h>
#include <malloc.h>
* In most cases we want to pass an FDT to the payload, so reserve one slot of
* config table space for it. The pointer gets populated by do_bootefi_exec().
*/
-static struct efi_configuration_table EFI_RUNTIME_DATA efi_conf_table[1];
+static struct efi_configuration_table __efi_runtime_data efi_conf_table[2];
+#ifdef CONFIG_ARM
/*
* The "gd" pointer lives in a register on ARM and AArch64 that we declare
* fixed when compiling U-Boot. However, the payload does not know about that
* EFI callback entry/exit.
*/
static volatile void *efi_gd, *app_gd;
+#endif
/* Called from do_bootefi_exec() */
void efi_save_gd(void)
{
+#ifdef CONFIG_ARM
efi_gd = gd;
+#endif
}
/* Called on every callback entry */
void efi_restore_gd(void)
{
+#ifdef CONFIG_ARM
/* Only restore if we're already in EFI context */
if (!efi_gd)
return;
if (gd != efi_gd)
app_gd = gd;
gd = efi_gd;
+#endif
}
/* Called on every callback exit */
efi_status_t efi_exit_func(efi_status_t ret)
{
+#ifdef CONFIG_ARM
gd = app_gd;
+#endif
+
return ret;
}
static efi_status_t efi_unsupported(const char *funcname)
{
-#ifdef DEBUG_EFI
- printf("EFI: App called into unimplemented function %s\n", funcname);
-#endif
+ debug("EFI: App called into unimplemented function %s\n", funcname);
return EFI_EXIT(EFI_UNSUPPORTED);
}
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;
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;
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;
return EFI_EXIT(r);
}
-static efi_status_t EFIAPI efi_allocate_pool(int pool_type, unsigned long size,
- void **buffer)
+static efi_status_t EFIAPI efi_allocate_pool_ext(int pool_type,
+ unsigned long size,
+ void **buffer)
{
efi_status_t r;
EFI_ENTRY("%d, %ld, %p", pool_type, size, buffer);
- r = efi_allocate_pages(0, pool_type, (size + 0xfff) >> 12, (void*)buffer);
+ r = efi_allocate_pool(pool_type, size, buffer);
return EFI_EXIT(r);
}
-static efi_status_t EFIAPI efi_free_pool(void *buffer)
+static efi_status_t EFIAPI efi_free_pool_ext(void *buffer)
{
efi_status_t r;
EFI_ENTRY("%p", buffer);
- r = efi_free_pages((ulong)buffer, 0);
+ r = efi_free_pool(buffer);
return EFI_EXIT(r);
}
u32 trigger_time;
u64 trigger_next;
unsigned long notify_tpl;
- void (*notify_function) (void *event, void *context);
+ void (EFIAPI *notify_function) (void *event, void *context);
void *notify_context;
} efi_event = {
/* Disable timers on bootup */
static efi_status_t EFIAPI efi_create_event(
enum efi_event_type type, ulong notify_tpl,
- void (*notify_function) (void *event, void *context),
+ void (EFIAPI *notify_function) (void *event,
+ void *context),
void *notify_context, void **event)
{
EFI_ENTRY("%d, 0x%lx, %p, %p", type, notify_tpl, notify_function,
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;
/* 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();
return EFI_EXIT(EFI_NOT_FOUND);
}
-static efi_status_t EFIAPI efi_install_configuration_table(efi_guid_t *guid,
- void *table)
+efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table)
{
int i;
- EFI_ENTRY("%p, %p", guid, table);
-
/* Check for guid override */
for (i = 0; i < systab.nr_tables; i++) {
if (!guidcmp(guid, &efi_conf_table[i].guid)) {
efi_conf_table[i].table = table;
- return EFI_EXIT(EFI_SUCCESS);
+ return EFI_SUCCESS;
}
}
/* No override, check for overflow */
if (i >= ARRAY_SIZE(efi_conf_table))
- return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+ return EFI_OUT_OF_RESOURCES;
/* Add a new entry */
memcpy(&efi_conf_table[i].guid, guid, sizeof(*guid));
efi_conf_table[i].table = table;
- systab.nr_tables = i;
+ systab.nr_tables = i + 1;
- return EFI_EXIT(EFI_SUCCESS);
+ return EFI_SUCCESS;
+}
+
+static efi_status_t EFIAPI efi_install_configuration_table_ext(efi_guid_t *guid,
+ void *table)
+{
+ EFI_ENTRY("%p, %p", guid, table);
+ return EFI_EXIT(efi_install_configuration_table(guid, table));
}
static efi_status_t EFIAPI efi_load_image(bool boot_policy,
.protocols = {
{
.guid = &efi_guid_loaded_image,
- .open = &efi_return_handle,
},
},
};
EFI_ENTRY("%d, %p, %p, %p, %ld, %p", boot_policy, parent_image,
file_path, source_buffer, source_size, image_handle);
info = malloc(sizeof(*info));
+ loaded_image_info_obj.protocols[0].protocol_interface = info;
obj = malloc(sizeof(loaded_image_info_obj));
memset(info, 0, sizeof(*info));
memcpy(obj, &loaded_image_info_obj, sizeof(loaded_image_info_obj));
efi_is_direct_boot = false;
/* call the image! */
+ if (setjmp(&info->exit_jmp)) {
+ /* We returned from the child image */
+ return EFI_EXIT(info->exit_status);
+ }
+
entry(image_handle, &systab);
/* Should usually never get here */
return EFI_EXIT(EFI_SUCCESS);
}
-static efi_status_t EFIAPI efi_exit(void *image_handle, long exit_status,
- unsigned long exit_data_size,
- uint16_t *exit_data)
+static efi_status_t EFIAPI efi_exit(efi_handle_t image_handle,
+ efi_status_t exit_status, unsigned long exit_data_size,
+ int16_t *exit_data)
{
+ struct efi_loaded_image *loaded_image_info = (void*)image_handle;
+
EFI_ENTRY("%p, %ld, %ld, %p", image_handle, exit_status,
exit_data_size, exit_data);
- return EFI_EXIT(efi_unsupported(__func__));
+
+ loaded_image_info->exit_status = exit_status;
+ longjmp(&loaded_image_info->exit_jmp, 1);
+
+ panic("EFI application exited");
}
static struct efi_object *efi_search_obj(void *handle)
{
EFI_ENTRY("%p, %ld", image_handle, map_key);
+ board_quiesce_devices();
+
/* Fix up caches for EFI payloads if necessary */
efi_exit_caches();
{
struct list_head *lhandle;
int i;
- efi_status_t r = EFI_UNSUPPORTED;
+ efi_status_t r = EFI_INVALID_PARAMETER;
EFI_ENTRY("%p, %p, %p, %p, %p, 0x%x", handle, protocol,
protocol_interface, agent_handle, controller_handle,
attributes);
+
+ if (!handle || !protocol ||
+ (!protocol_interface && attributes !=
+ EFI_OPEN_PROTOCOL_TEST_PROTOCOL)) {
+ goto out;
+ }
+
+ switch (attributes) {
+ case EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL:
+ case EFI_OPEN_PROTOCOL_GET_PROTOCOL:
+ case EFI_OPEN_PROTOCOL_TEST_PROTOCOL:
+ break;
+ case EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER:
+ if (controller_handle == handle)
+ goto out;
+ case EFI_OPEN_PROTOCOL_BY_DRIVER:
+ case EFI_OPEN_PROTOCOL_BY_DRIVER | EFI_OPEN_PROTOCOL_EXCLUSIVE:
+ if (controller_handle == NULL)
+ goto out;
+ case EFI_OPEN_PROTOCOL_EXCLUSIVE:
+ if (agent_handle == NULL)
+ goto out;
+ break;
+ default:
+ goto out;
+ }
+
list_for_each(lhandle, &efi_obj_list) {
struct efi_object *efiobj;
efiobj = list_entry(lhandle, struct efi_object, link);
if (!hprotocol)
break;
if (!guidcmp(hprotocol, protocol)) {
- r = handler->open(handle, protocol,
- protocol_interface, agent_handle,
- controller_handle, attributes);
+ if (attributes !=
+ EFI_OPEN_PROTOCOL_TEST_PROTOCOL) {
+ *protocol_interface =
+ handler->protocol_interface;
+ }
+ r = EFI_SUCCESS;
goto out;
}
}
+ goto unsupported;
}
+unsupported:
+ r = EFI_UNSUPPORTED;
out:
return EFI_EXIT(r);
}
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 = {
.allocate_pages = efi_allocate_pages_ext,
.free_pages = efi_free_pages_ext,
.get_memory_map = efi_get_memory_map_ext,
- .allocate_pool = efi_allocate_pool,
- .free_pool = efi_free_pool,
+ .allocate_pool = efi_allocate_pool_ext,
+ .free_pool = efi_free_pool_ext,
.create_event = efi_create_event,
.set_timer = efi_set_timer,
.wait_for_event = efi_wait_for_event,
.register_protocol_notify = efi_register_protocol_notify,
.locate_handle = efi_locate_handle,
.locate_device_path = efi_locate_device_path,
- .install_configuration_table = efi_install_configuration_table,
+ .install_configuration_table = efi_install_configuration_table_ext,
.load_image = efi_load_image,
.start_image = efi_start_image,
- .exit = (void*)efi_exit,
+ .exit = efi_exit,
.unload_image = efi_unload_image,
.exit_boot_services = efi_exit_boot_services,
.get_next_monotonic_count = efi_get_next_monotonic_count,
};
-static uint16_t EFI_RUNTIME_DATA firmware_vendor[] =
+static uint16_t __efi_runtime_data firmware_vendor[] =
{ 'D','a','s',' ','U','-','b','o','o','t',0 };
-struct efi_system_table EFI_RUNTIME_DATA systab = {
+struct efi_system_table __efi_runtime_data systab = {
.hdr = {
.signature = EFI_SYSTEM_TABLE_SIGNATURE,
.revision = 0x20005, /* 2.5 */
projects / u-boot / blobdiff