Hi, > Using the default QEMU config, we build SeaBIOS to use the TSC timer: > > builds/seabios-128k/.config:CONFIG_TSC_TIMER=y > builds/seabios-256k/.config:CONFIG_TSC_TIMER=y
> Do we need a cpu with TSC support to run SeaBIOS? Hmm. seabios uses pmtimer if available. isapc has no pmtimer though, so it uses TSC instead. > So we should use '-cpu Conroe' or '-cpu core2duo' minimum? -cpu Conroe for -M isapc is kida silly though ... Maybe we should simply build seabios with CONFIG_TSC_TIMER=n ? Using the TSC in a virtual machine is problematic anyway, the calibration can be _way_ off on a loaded host, this is why seabios prefers the (fixed frequency) pmtimer. cheers, Gerd