On Tue, 2020-06-23 at 12:35 +1000, Alexey Kardashevskiy wrote: > > I am not sure if this is true in general, but in this device (SR-IOV > > VF) I am testing it will return 0 windows if the default DMA window is > > not deleted, and 1 after it's deleted. > > Since pHyp can only create windows in "64bit space", now (I did not know > until a few month back) I expect that thing to return "1" always no > matter what happened to the default window. And removing the default > window will only affect the maximum number of TCEs but not the number of > possible windows.
Humm, something gone wrong then. This patchset was developed mostly because on testing, DDW would never be created because windows_available would always be 0. I will take a deeper look in that. Best regards, Leonardo
