pcie: Add link speed and width fields to PCIESlot

Add fields allowing the PCIe link speed and width of a PCIESlot to
be configured, with an instance_post_init callback on the root port
parent class to set defaults.  This allows child classes to set these
via properties or via their own instance_init callback, without
requiring all implementions to support arbitrary user selected values.

Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Tested-by: Geoffrey McRae <geoff@hostfission.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/hw/pci/pcie_port.h b/include/hw/pci/pcie_port.h
index 0736014bfd..df242a0caf 100644
--- a/include/hw/pci/pcie_port.h
+++ b/include/hw/pci/pcie_port.h
@@ -49,6 +49,10 @@ struct PCIESlot {
     /* pci express switch port with slot */
     uint8_t     chassis;
     uint16_t    slot;
+
+    PCIExpLinkSpeed speed;
+    PCIExpLinkWidth width;
+
     QLIST_ENTRY(PCIESlot) next;
 };