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efi_loader: Introduce eventlog support for TCG2_PROTOCOL

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In the previous patches we only introduced a minimal subset of the
EFI_TCG2_PROTOCOL protocol implementing GetCapability().
So let's continue adding features to it, introducing the
GetEventLog() and HashLogExtendEvent() functions.

In order to do that we first need to construct the eventlog in memory,
specifically in EFI_BOOT_SERVICES_DATA memory and a configuration table
from EFI_ACPI_MEMORY_NVS.
U-Boot won't currently add any events to the log or measure any
components, but will expose the necessary EFI APIs for applications
to do so.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Ilias Apalodimas 2020-11-30 11:47:40 +02:00 • committed by Heinrich Schuchardt
parent 8e0b0871b8
commit c8d0fd5825
5 changed files with 624 additions and 23 deletions
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4
include/efi_api.h
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@ -356,6 +356,10 @@ struct efi_runtime_services {
EFI_GUID(0x4006c0c1, 0xfcb3, 0x403e, \
0x99, 0x6d, 0x4a, 0x6c, 0x87, 0x24, 0xe0, 0x6d)
#define EFI_TCG2_FINAL_EVENTS_TABLE_GUID \
EFI_GUID(0x1e2ed096, 0x30e2, 0x4254, 0xbd, \
0x89, 0x86, 0x3b, 0xbe, 0xf8, 0x23, 0x25)
struct efi_configuration_table {
efi_guid_t guid;
void *table;