diff options
| -rw-r--r-- | common/efi/payload/image.c | 4 | ||||
| -rw-r--r-- | drivers/efi/efi-device.c | 28 | ||||
| -rw-r--r-- | include/efi/efi-device.h | 5 |
3 files changed, 37 insertions, 0 deletions
diff --git a/common/efi/payload/image.c b/common/efi/payload/image.c index c1206cd6e2..e63da9ddf0 100644 --- a/common/efi/payload/image.c +++ b/common/efi/payload/image.c @@ -139,10 +139,14 @@ static int efi_execute_image(const char *file) shutdown_barebox(); } + efi_pause_devices(); + efiret = BS->start_image(handle, NULL, NULL); if (EFI_ERROR(efiret)) pr_err("failed to StartImage: %s\n", efi_strerror(efiret)); + efi_continue_devices(); + if (!is_driver) BS->unload_image(handle); diff --git a/drivers/efi/efi-device.c b/drivers/efi/efi-device.c index 79cdd2ef27..955899b2d0 100644 --- a/drivers/efi/efi-device.c +++ b/drivers/efi/efi-device.c @@ -466,6 +466,34 @@ static int efi_init_devices(void) } core_initcall(efi_init_devices); +void efi_pause_devices(void) +{ + struct device_d *dev; + + bus_for_each_device(&efi_bus, dev) { + struct driver_d *drv = dev->driver; + struct efi_device *efidev = to_efi_device(dev); + struct efi_driver *efidrv = to_efi_driver(drv); + + if (efidrv->dev_pause) + efidrv->dev_pause(efidev); + } +} + +void efi_continue_devices(void) +{ + struct device_d *dev; + + bus_for_each_device(&efi_bus, dev) { + struct driver_d *drv = dev->driver; + struct efi_device *efidev = to_efi_device(dev); + struct efi_driver *efidrv = to_efi_driver(drv); + + if (efidrv->dev_continue) + efidrv->dev_continue(efidev); + } +} + static void efi_devpath(efi_handle_t handle) { efi_status_t efiret; diff --git a/include/efi/efi-device.h b/include/efi/efi-device.h index cd8a374c32..b9714ffb74 100644 --- a/include/efi/efi-device.h +++ b/include/efi/efi-device.h @@ -16,6 +16,8 @@ struct efi_driver { struct driver_d driver; int (*probe)(struct efi_device *efidev); void (*remove)(struct efi_device *efidev); + int (*dev_pause)(struct efi_device *efidev); + int (*dev_continue)(struct efi_device *efidev); efi_guid_t guid; }; @@ -46,6 +48,9 @@ int efi_connect_all(void); void efi_register_devices(void); struct efi_device *efi_get_bootsource(void); +void efi_pause_devices(void); +void efi_continue_devices(void); + static inline bool efi_device_has_guid(struct efi_device *efidev, efi_guid_t guid) { int i; |