On Tue, May 21, 2019 at 07:41:33AM +0200, Gerd Hoffmann wrote:
Check whenever pnp roms attempt to redirect int19, and in case it does log a message and undo the redirect.
A pnp rom should not need this, we have BEVs and BCVs for that. Nevertheless there are roms in the wild which are redirecting int19. At least some BIOS implementations for physical hardware have a config option in the setup to allow/disallow int19 redirections, so just not allowing this seems to be the way to deal with this situation.
Looks good to me.