Comment 27 for bug 1725560

Revision history for this message
dann frazier (dannf) wrote : Re: OVMF UEFI firmware causes Windows 10 w/ GPU passthrough to not boot after upgrade

fwiw, I'm able to reproduce the slow-to-boot-ISO issue by using IDE. With that as a symptom, I completed the bisect and hit:

6fb8ddd36bde MdeModulePkg/AtaAtapiPassThru: disable the device at ExitBootServices()

Prior to this commit, it took 34s for me to go from EFI shell to first install screen.
With this commit, it takes 8.5 minutes. I tried to complete an install in this mode but gave up after an hour w/ the installer hung at 10% in "preparing files for install."