[coreboot-gerrit] Change in coreboot[master]: device/Kconfig: Add HAVE_EXT_GFX kconfig

[Subrata Banik (Code Review)]

Subrata Banik has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/33738 )

Change subject: device/Kconfig: Add HAVE_EXT_GFX kconfig
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Patch Set 8:

(1 comment)

https://review.coreboot.org/c/coreboot/+/33738/6/src/device/Kconfig 
File src/device/Kconfig:

https://review.coreboot.org/c/coreboot/+/33738/6/src/device/Kconfig@133 
PS6, Line 133: 	  graphics card and selecting this Kconfig will ask FSP to make IGD disable.
> Such a policy does not exist (yet). […]

i don't see any platform so far where on board and off board GFX both working simultaneously. Just wondering how you tell your BIOS to through some display over which framebuffer, even today in coreboot there are single call to know framebuffer either from IGD BAR 0x18 or from external device BAR 0x10. Also how will you notify your OS to use simultaneous display ?