How many MSIs from PCIe does "Altera MSI to GIC generator" support?

I spoke with an engineer that is much more familiar with this hardware and he said that it supports 8 MSI interrupts in parallel. I'm not familiar with MSIs but the engineer said that this hardware supports up to 32 continuous addressable memory so if you want to have non-continuous you would just use multiple hardware blocks to separate out the vectors in the memory space at the expense of consuming more than interrupts.