Hello build bot (Jenkins), Patrick Rudolph,
I'd like you to reexamine a change. Please visit
https://review.coreboot.org/c/coreboot/+/40968
to look at the new patch set (#2).
Change subject: soc/intel/tigerlake: Clear TBT PCIe root ports BME at exit boot service ......................................................................
soc/intel/tigerlake: Clear TBT PCIe root ports BME at exit boot service
Vt-d based security platform requires the system firmware to clear bus master enable(BME) bit for all Thunderbolt PCIe root ports, bridges and devices at exit boot service. In this state with BME bit cleared, the PCI root ports would be considered as trusted to not forward any DMA transaction to download endpoint devices.
BUG=141609884 TEST=built image and booted to kernel successfully.
Change-Id: I9650b9dd4df1f9bee53ae3737b7bf60b2ef8017b Signed-off-by: John Zhao john.zhao@intel.com --- M src/soc/intel/tigerlake/chip.c 1 file changed, 44 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/68/40968/2