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efi_loader: Add check for event log passed from firmware

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Platforms may have support to measure their initial firmware components
and pass the event log to u-boot. The event log address can be passed
in property tpm_event_log_addr and tpm_event_log_size of the tpm node.
Platforms may choose their own specific mechanism to do so. A weak
function is added to check if even log has been passed to u-boot
from earlier firmware components. If available, the eventlog is parsed
to check for its correctness and further event logs are appended to the
passed log.

Signed-off-by: Ruchika Gupta <ruchika.gupta@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Tested-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Ruchika Gupta
2021-11-29 13:09:44 +05:30
committed by Heinrich Schuchardt
parent 3b7bf8a9e4
commit 34287efdaf
2 changed files with 402 additions and 69 deletions
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include/efi_loader.h
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@@ -988,4 +988,6 @@ efi_status_t efi_esrt_register(void);
*/
efi_status_t efi_esrt_populate(void);
efi_status_t efi_load_capsule_drivers(void);
efi_status_t platform_get_eventlog(struct udevice *dev, u64 *addr, u32 *sz);
#endif /* _EFI_LOADER_H */