diff options
| author | Matthew Garrett <matthewgarrett@google.com> | 2019-06-07 13:51:46 -0700 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2019-06-24 23:57:49 +0300 |
| commit | 82d736ac56d7cd78696c5234853684bad05efadf (patch) | |
| tree | 2e5b20a4133bb208c43519874482facebe36b29f /drivers/firmware/efi/libstub/efi-stub-helper.c | |
| parent | db4d8cb9c9f2af71c4d087817160d866ed572cc9 (diff) | |
Abstract out support for locating an EFI config table
We want to grab a pointer to the TPM final events table, so abstract out
the existing code for finding an FDT table and make it generic.
Signed-off-by: Matthew Garrett <mjg59@google.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers/firmware/efi/libstub/efi-stub-helper.c')
| -rw-r--r-- | drivers/firmware/efi/libstub/efi-stub-helper.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/firmware/efi/libstub/efi-stub-helper.c b/drivers/firmware/efi/libstub/efi-stub-helper.c index e4610e72b78f..1db780c0f07b 100644 --- a/drivers/firmware/efi/libstub/efi-stub-helper.c +++ b/drivers/firmware/efi/libstub/efi-stub-helper.c @@ -926,3 +926,18 @@ free_map: fail: return status; } + +void *get_efi_config_table(efi_system_table_t *sys_table, efi_guid_t guid) +{ + efi_config_table_t *tables = (efi_config_table_t *)sys_table->tables; + int i; + + for (i = 0; i < sys_table->nr_tables; i++) { + if (efi_guidcmp(tables[i].guid, guid) != 0) + continue; + + return (void *)tables[i].table; + } + + return NULL; +} |