On 07.02.2022 15:46, Oleksandr Andrushchenko wrote: > On 07.02.22 16:31, Jan Beulich wrote: >> But: What's still missing here then is the separation of guest and host >> views. When we set INTx behind the guest's back, it shouldn't observe the >> bit set. Or is this meant to be another (big) TODO? > But, patch [PATCH v6 09/13] vpci/header: emulate PCI_COMMAND register for > guests > already takes care of it, I mean that it will set/reset INTx for the guest > according to MSI/MSI-X. So, if we squash these two patches the whole > picture will be seen at once.
Does it? I did get the impression that the guest would be able to observe the bit set even after writing zero to it (while a reason exists that Xen wants the bit set). Jan
