On Mon, Feb 11, 2019 at 01:55:16PM -0800, Matthew Garrett wrote: > From: Matthew Garrett <mjg59@xxxxxxxxxx> > > UEFI systems provide a boot services protocol for obtaining the TPM > event log, but this is unusable after ExitBootServices() is called. > Unfortunately ExitBootServices() itself triggers additional TPM events > that then can't be obtained using this protocol. The platform provides a > mechanism for the OS to obtain these events by recording them to a > separate UEFI configuration table which the OS can then map. > > Unfortunately this table isn't self describing in terms of providing its > length, so we need to parse the events inside it to figure out how long > it is. Since the table isn't mapped at this point, we need to extend the > length calculation function to be able to map the event as it goes > along. > > Signed-off-by: Matthew Garrett <mjg59@xxxxxxxxxx> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx> /Jarkko
