diff options
| author | Tom Rini <[email protected]> | 2020-02-29 08:01:07 -0500 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2020-02-29 08:01:07 -0500 |
| commit | 5045289820835ce0baf5d7cea86f9fdc6170d189 (patch) | |
| tree | 5461a194898326e044d0087345aeea59d7220190 /include | |
| parent | 1e85aaf3723f0ecd06fcf62e2d2482749e1995d6 (diff) | |
| parent | 71a7de4467030362ef2582c355c086eb5fc4143f (diff) | |
Merge tag 'efi-2020-04-rc4-2' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi
Pull request for UEFI sub-system for efi-2020-04-rc4 (2)
In Linux next-20200228 patches have been merged to load an initial ramdisk
using an EFI_LOAD_FILE2_PROTOCOL provided by the firmware. See commit
ec93fc371f01 ("efi/libstub: Add support for loading the initrd from a
device path"). The idea behind it is that the firmware should be
responsible for validating the initrd in a secure boot setup.
This pull-request comprises a patch series which let's U-Boot provide an
initial implementation of the EFI_LOAD_FILE2_PROTOCOL providing the initrd.
Diffstat (limited to 'include')
| -rw-r--r-- | include/efi_api.h | 17 | ||||
| -rw-r--r-- | include/efi_load_initrd.h | 25 | ||||
| -rw-r--r-- | include/efi_loader.h | 1 |
3 files changed, 43 insertions, 0 deletions
diff --git a/include/efi_api.h b/include/efi_api.h index b7b68cb7a1f..3d1a6beeeac 100644 --- a/include/efi_api.h +++ b/include/efi_api.h @@ -331,6 +331,14 @@ struct efi_runtime_services { EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3, \ 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) +#define EFI_LOAD_FILE_PROTOCOL_GUID \ + EFI_GUID(0x56ec3091, 0x954c, 0x11d2, \ + 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) + +#define EFI_LOAD_FILE2_PROTOCOL_GUID \ + EFI_GUID(0x4006c0c1, 0xfcb3, 0x403e, \ + 0x99, 0x6d, 0x4a, 0x6c, 0x87, 0x24, 0xe0, 0x6d) + struct efi_configuration_table { efi_guid_t guid; void *table; @@ -486,6 +494,7 @@ struct efi_device_path_nvme { #define DEVICE_PATH_TYPE_MEDIA_DEVICE 0x04 # define DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH 0x01 # define DEVICE_PATH_SUB_TYPE_CDROM_PATH 0x02 +# define DEVICE_PATH_SUB_TYPE_VENDOR_PATH 0x03 # define DEVICE_PATH_SUB_TYPE_FILE_PATH 0x04 struct efi_device_path_hard_drive_path { @@ -1619,6 +1628,14 @@ struct efi_unicode_collation_protocol { char *supported_languages; }; +struct efi_load_file_protocol { + efi_status_t (EFIAPI *load_file)(struct efi_load_file_protocol *this, + struct efi_device_path *file_path, + bool boot_policy, + efi_uintn_t *buffer_size, + void *buffer); +}; + /* Boot manager load options */ #define LOAD_OPTION_ACTIVE 0x00000001 #define LOAD_OPTION_FORCE_RECONNECT 0x00000002 diff --git a/include/efi_load_initrd.h b/include/efi_load_initrd.h new file mode 100644 index 00000000000..478ae807c68 --- /dev/null +++ b/include/efi_load_initrd.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (c) 2020, Linaro Limited + */ + +#if !defined _EFI_LOAD_INITRD_H_ +#define _EFI_LOAD_INITRD_H_ + +#include <efi.h> +#include <efi_api.h> + +/* + * Vendor GUID used by Linux to identify the handle with the + * EFI_LOAD_FILE2_PROTOCOL and load an initial ramdisk. + */ +#define EFI_INITRD_MEDIA_GUID \ + EFI_GUID(0x5568e427, 0x68fc, 0x4f3d, \ + 0xac, 0x74, 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68) + +struct efi_initrd_dp { + struct efi_device_path_vendor vendor; + struct efi_device_path end; +} __packed; + +#endif diff --git a/include/efi_loader.h b/include/efi_loader.h index d4c59b54c48..8e343798339 100644 --- a/include/efi_loader.h +++ b/include/efi_loader.h @@ -378,6 +378,7 @@ efi_status_t efi_gop_register(void); efi_status_t efi_net_register(void); /* Called by bootefi to make the watchdog available */ efi_status_t efi_watchdog_register(void); +efi_status_t efi_initrd_register(void); /* Called by bootefi to make SMBIOS tables available */ /** * efi_acpi_register() - write out ACPI tables |