Hi Masahisa,
On Wed, 7 Jul 2021 at 20:21, Masahisa Kojima masahisa.kojima@linaro.org wrote:
On Wed, 7 Jul 2021 at 22:47, Heinrich Schuchardt xypron.glpk@gmx.de wrote:
On 7/7/21 3:36 PM, Masahisa Kojima wrote:
This is a preperation to add eventlog support described in TCG PC Client PFP spec.
Signed-off-by: Masahisa Kojima masahisa.kojima@linaro.org
lib/efi_loader/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig index b2ab48a048..a87bf3cc98 100644 --- a/lib/efi_loader/Kconfig +++ b/lib/efi_loader/Kconfig @@ -327,7 +327,7 @@ config EFI_TCG2_PROTOCOL config EFI_TCG2_PROTOCOL_EVENTLOG_SIZE int "EFI_TCG2_PROTOCOL EventLog size" depends on EFI_TCG2_PROTOCOL
default 4096
default 16384I found this text in EDK II:
Minimum length(in bytes) of the system preboot TCG event log area(LAML)
For PC Client Implementation spec up to and including 1.2 the minimum log size is 64KB. (SecurityPkg/SecurityPkg.dec)
Thank you for your feedback. I have not checked this. TCG spec also says "The Log Area Minimum Length for the TCG event log MUST be at least 64KB." in ACPI chapter. I will update to set 64KB as default.
Is this the same as the BLOBLISTT_TPM2_TCG_LOG thing? If so, can we put this in the bloblist? We want to avoid adding code in EFI which is in U-Boot.
- Simon
Thanks, Masahisa Kojima
Why should ours be smaller?
Best regards
Heinrich
help Define the size of the EventLog for EFI_TCG2_PROTOCOL. Note that this is going to be allocated twice. One for the eventlog it self