[coreboot-gerrit] Change in coreboot[master]: device: Add a disabling PCIe device bus master function

[John Zhao (Code Review)]

Hello build bot (Jenkins), Nico Huber, Duncan Laurie,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/41042

to look at the new patch set (#2).

Change subject: device: Add a disabling PCIe device bus master function
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device: Add a disabling PCIe device bus master function

A function pci_dev_disable_bus_master() is created. This function
can be used to disable Thunderbolt PCIe root ports, bridges and
devices for Vt-d based security platform at end of boot service.

BUG=None
TEST=Verified PCIe device bus master enable bit is cleared.

Signed-off-by: John Zhao 
Change-Id: Ie92a15bf2c66fdc311098acb81019d4fb7f68313
---
M src/device/pci_device.c
M src/include/device/pci.h
2 files changed, 13 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/42/41042/2