e2a6290aab
Q35 has now ACPI hotplug enabled by default for PCI(e) devices.
As opposed to native PCIe hotplug, guests like Fedora 34
will not assign IO range to pcie-root-ports not supporting
native hotplug, resulting into a regression.
Reproduce by:
qemu-bin -M q35 -device pcie-root-port,id=p1 -monitor stdio
device_add e1000,bus=p1
In the Guest OS the respective pcie-root-port will have the IO range
disabled.
Fix it by setting the "reserve-io" hint capability of the
pcie-root-ports so the firmware will allocate the IO range instead.
Acked-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Message-Id: <20210802090057.1709775-1-marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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|---|---|---|
| .. | ||
| dec.c | ||
| dec.h | ||
| gen_pcie_root_port.c | ||
| i82801b11.c | ||
| ioh3420.c | ||
| Kconfig | ||
| meson.build | ||
| pci_bridge_dev.c | ||
| pci_expander_bridge.c | ||
| pcie_pci_bridge.c | ||
| pcie_root_port.c | ||
| simba.c | ||
| xio3130_downstream.c | ||
| xio3130_upstream.c | ||