On Wed, Sep 19, 2012 at 02:25:48PM +1000, Peter Crosthwaite wrote: > Ping for PMM, > > This is the root case of your block on the SDHCI series - this is a > discussion on resolution to bogus infinite looping DMA. For current > participants in this discussion, heres our thread on the same topic > over in SD land: > > http://lists.gnu.org/archive/html/qemu-devel/2012-08/msg01017.html > > With the findings here and acknowledgement that this is a general > problem, we either need to declare this issue of scope for SDHCI, or > work with these guys (in the immediate future) on the DMA infinite > loop problem flagged here. I dont mind if SDHCI+ADMA is the guinea pig > here, but can we get a decisive plan for going forward with this issue > if it is going to continue to block SDHCI. > > Thanks to Igor for identifying the overlap between these discussions.
Hi, A couple of dumb questions. What is the reason for the blocker? that possible guest dos is worse than no functionality at all? Can't you put the DMA/IO processing into the background? what's the diff between setup of bad descriptors and writing a while (1) loop in the guest CPU? Cheers, E
