Il 05/03/2013 17:59, David Woodhouse ha scritto: > On Tue, 2013-03-05 at 17:03 +0100, Paolo Bonzini wrote: >> > Resuming from suspend-to-RAM should not reset all devices. Only the >> > CPU should get a reset signal. > Hm... on reflection, I don't actually know if this is true. > > Perhaps we *should* reset all devices. After all, in a real machine > they'll all have been turned off and the RAM will have been in > self-refresh. Surely they have to be reset? > > So maybe we should *let* the i440FX PAM registers get reset to point to > ROM. And fix the firmware to *cope* with that, check to see if the > shadow RAM already holds an image of a started-up firmware with the > correct checksum, and jump back to it. > > That is: perhaps it's a *SeaBIOS* bug that suspend/resume doesn't work > if the PAM configuration is reset?
Yeah, it sounded a bit weird when I wrote that commit message. This could be the case. How does it work on Coreboot? Paolo
