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| author | Michael Olbrich <m.olbrich@pengutronix.de> | 2023-12-06 14:11:45 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2023-12-13 07:53:41 +0100 |
| commit | ffd6ea197ad6cb8f684363b4759f70d11186c753 (patch) | |
| tree | cabef9275409e807f4caced2cb7f9bf6b9f2a8ba /common/efi | |
| parent | ef94788b4842930d98619c33e2fe339b32c45fcf (diff) | |
| download | barebox-ffd6ea197ad6cb8f684363b4759f70d11186c753.tar.gz barebox-ffd6ea197ad6cb8f684363b4759f70d11186c753.tar.xz | |
efi: fill more EFI runtime variables defined by systemd
bootctl will use those variables if available, and produce something
like this:
System:
Firmware: UEFI 2.70 (American Megatrends 5.13)
Firmware Arch: x64
Secure Boot: disabled (setup)
TPM2 Support: firmware only, driver unavailable
Boot into FW: supported
Current Boot Loader:
Product: barebox-2023.11.0-dirty
Features: ✗ Boot counting
✗ Menu timeout control
✗ One-shot menu timeout control
✗ Default entry control
✗ One-shot entry control
✗ Support for XBOOTLDR partition
✗ Support for passing random seed to OS
✗ Load drop-in drivers
✗ Support Type #1 sort-key field
✗ Support @saved pseudo-entry
✓ Support Type #1 devicetree field
✗ Enroll SecureBoot keys
✗ Retain SHIM protocols
✗ Boot loader sets ESP information
[...]
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Link: https://lore.barebox.org/20231206131145.3096043-2-m.olbrich@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'common/efi')
| -rw-r--r-- | common/efi/payload/init.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/common/efi/payload/init.c b/common/efi/payload/init.c index 19be7ff07f..cfacdffa67 100644 --- a/common/efi/payload/init.c +++ b/common/efi/payload/init.c @@ -36,6 +36,7 @@ #include <libfile.h> #include <state.h> #include <bbu.h> +#include <generated/utsrelease.h> efi_runtime_services_t *RT; efi_boot_services_t *BS; @@ -322,13 +323,46 @@ static int efi_core_init(void) } core_initcall(efi_core_init); +/* Features of the loader, i.e. systemd-boot, barebox (imported from systemd) */ +#define EFI_LOADER_FEATURE_CONFIG_TIMEOUT (1LL << 0) +#define EFI_LOADER_FEATURE_CONFIG_TIMEOUT_ONE_SHOT (1LL << 1) +#define EFI_LOADER_FEATURE_ENTRY_DEFAULT (1LL << 2) +#define EFI_LOADER_FEATURE_ENTRY_ONESHOT (1LL << 3) +#define EFI_LOADER_FEATURE_BOOT_COUNTING (1LL << 4) +#define EFI_LOADER_FEATURE_XBOOTLDR (1LL << 5) +#define EFI_LOADER_FEATURE_RANDOM_SEED (1LL << 6) +#define EFI_LOADER_FEATURE_LOAD_DRIVER (1LL << 7) +#define EFI_LOADER_FEATURE_SORT_KEY (1LL << 8) +#define EFI_LOADER_FEATURE_SAVED_ENTRY (1LL << 9) +#define EFI_LOADER_FEATURE_DEVICETREE (1LL << 10) +#define EFI_LOADER_FEATURE_SECUREBOOT_ENROLL (1LL << 11) +#define EFI_LOADER_FEATURE_RETAIN_SHIM (1LL << 12) + + static int efi_postcore_init(void) { char *uuid; + static const uint64_t loader_features = + EFI_LOADER_FEATURE_DEVICETREE; efi_set_variable_usec("LoaderTimeInitUSec", &efi_systemd_vendor_guid, get_time_ns()/1000); + efi_set_variable_printf("LoaderInfo", &efi_systemd_vendor_guid, + "barebox-" UTS_RELEASE); + + efi_set_variable_printf("LoaderFirmwareInfo", &efi_systemd_vendor_guid, + "%ls %u.%02u", efi_sys_table->fw_vendor, + efi_sys_table->fw_revision >> 16, + efi_sys_table->fw_revision & 0xffff); + + efi_set_variable_printf("LoaderFirmwareType", &efi_systemd_vendor_guid, + "UEFI %u.%02u", efi_sys_table->hdr.revision >> 16, + efi_sys_table->hdr.revision & 0xffff); + + efi_set_variable_uint64_le("LoaderFeatures", &efi_systemd_vendor_guid, + loader_features); + uuid = device_path_to_partuuid(device_path_from_handle( efi_loaded_image->device_handle)); if (uuid) { |