On Tue, Nov 04, 2025 at 02:58:44PM +0000, Shameer Kolothum wrote: > > Sure it is trapped, but nothing should be looking at the MSI address > > from the guest, it is meaningless and wrong information. Just ignore > > it. > > Hmm.. we need to setup the doorbell address correctly.
> If we don't do the translation here, it will use the Guest IOVA > address. Remember, we are using the IORT RMR identity mapping to get > MSI working. Either you use the RMR value, which is forced by the kernel into the physical MSI through iommufd and kernel ignores anything qemu does. So fully ignore the guest's vMSI address. Eventually qemu should transfer the unchanged guest vMSI address directly to the kernel, but we haven't figured that out yet. Jason
