I personally don't think that libgfxinit instead of vgabios or vice
versa will make any difference in this case. I'd recommend to test
native raminit vs mrc.bin instead.
Correct me if I'm wrong but isn't the mrc.bin Haswell specific [1]? From
what I recall I never saw an option in "make menuconfig" to choose
native raminit or mrc.bin on IvyBridge. If there is such an option (now)
I'll definitely try it!
If you mean microcode updates, then there's an option in coreboot's
config (and you also need to enable use of binary-only repository in
the General section).
In terms of microcode updates I'm concerned about "compability", i.e.
does Debian use an older / newer version than coreboot and vice versa,
is there some specific initialization done by Debian / coreboot which
the other one does not perform etc.
[1] https://doc.coreboot.org/northbridge/intel/haswell/mrc.bin.html
On 1/19/20 12:22 AM, Evgeny Zinoviev via coreboot wrote:
From what I recall, the last coreboot master I tried resulted in
crashes without your patch.
If it's so, then the HT patch is not to blame... But we'll see after
your tests.
I intend to run following tests with the latest coreboot master (I'll
note the commit hash and use the same commit for all of my tests) and
SeaBIOS as payload (blobs will be extracted from the Lenovo OEM BIOS
v2.81):
1. fully blob'ed (vgabios, ifd, me, gbe)
2. libgfxinit instead of vgabios
3. fully blob'ed with the me shrinked
4. libgfxinit instead of vgabios with the me shrinked
I personally don't think that libgfxinit instead of vgabios or vice
versa will make any difference in this case. I'd recommend to test
native raminit vs mrc.bin instead.
I'm unsure on how to provide the µCode patches, i.e. integrate them
in coreboot or have them patched by Linux.
If you mean microcode updates, then there's an option in coreboot's
config (and you also need to enable use of binary-only repository in
the General section).
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