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| author | Matt DeVillier <matt.devillier@gmail.com> | 2017-06-27 13:07:43 -0500 |
|---|---|---|
| committer | Patrick Rudolph <siro@das-labor.org> | 2017-10-13 05:17:45 +0000 |
| commit | 53e41956256bdf52bb5823838c62674e0e838861 (patch) | |
| tree | 7b76ccfa8293d7caee4d38185810a2347af1509b /Documentation/technotes/2017-02-dealing-with-untrusted-input-in-smm.md | |
| parent | 74145f7615b67acae77fdf45c3e7f3f373b9b2c7 (diff) | |
| download | coreboot-53e41956256bdf52bb5823838c62674e0e838861.tar.xz | |
drv/intel/gma/opregion: Add common init_idg_opregion()
Add a new common method to initialize ACPI OpRegion.
* Try to locate vbt.bin in CBFS.
* Try to locate VBIOS in CBFS.
* Keep existing code to probe at 0xc0000.
Tested on Lenovo T430 (sandybridge) using vbt.bin, tested using buggy
VBIOS with wrong vbt_offset, tested with fake vbt written by NGI at
0xc0000.
Tested with https://review.coreboot.org/#/c/21766/ on i945 (using fake
vbt at 0xc0000), x4x (using vbt.bin) and gm45 (using vendor VBIOS).
In all cases linux was successfully provided with VBT from ACPI
opregion.
Change-Id: I8ee50ea9900537bd9e3ca5ab0cd3f48d2acec970
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/20969
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'Documentation/technotes/2017-02-dealing-with-untrusted-input-in-smm.md')
0 files changed, 0 insertions, 0 deletions