On Tue, Apr 11, 2023 at 09:47:50AM -0400, Parav Pandit wrote: > > > On 4/11/2023 3:00 AM, Michael S. Tsirkin wrote: > > > > I meant, it depends on the capability semantics. Both PASID and legacy > > > MMIO don't need to be accessed by BIOS. We can't change legacy BIOS to > > > use legacy MMIO bars. > > > > > > Thanks > > > > makes sense. > > > > > > now, imagine someone building a new device. if existing drivers are not > > a concern, it is possible to move capabilities all to extended space. is > > that possible while keeping the bios working? > > > unlikely as bios is looking in the legacy section.
what do you mean by the legacy section? > New capabilities like legacy (and pasid) has no backward compat requirement > from bios and drivers. > so they can start from new. sure. -- MST --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
