The spec says (and real HW confirms this) that, if the bus master bit is 0, the device will not generate any PCI accesses. MSI and MSI-X messages fall among these, so we should use the corresponding address space to deliver them. This will prevent delivery if bus master support is disabled. Cc: qemu-stable@nongnu.org Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org - QEMU team
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