[SeaBIOS] ohci bulk?

Kevin O'Connor kevin at koconnor.net
Tue Sep 28 02:30:31 CEST 2010

On Mon, Sep 27, 2010 at 10:33:49AM -0700, H. Peter Anvin wrote:
> On 09/27/2010 10:00 AM, Avi Kivity wrote:
> > What about the ISA DMA engine?
> > 
> The ISA DMA engine can only access the bottom 16 MiB since it only has
> 24 address bits.
> As far as KVM is concerned, if KVM doesn't wish to implement SMM (which
> really isn't all that hard -- it's pretty much a matter of dumping the
> state and undumping it on RSM; since SMM code is restricted to the
> firmware it doesn't necessarily have to be compatible with the native
> CPU) KVM could simply implement a custom memory-moving device -- which
> would be faster to boot.

I didn't think kvm uses ohci today.  This issue isn't a problem at all
with uhci or ehci.


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