hw/pcie: implement power controller functionality

It is needed by hot-unplug in order to get an indication
from the OS when the device can be physically detached.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/hw/pci/pcie.h b/include/hw/pci/pcie.h
index b0bf7e3ce1..7fe81f31ef 100644
--- a/include/hw/pci/pcie.h
+++ b/include/hw/pci/pcie.h
@@ -76,6 +76,8 @@ struct PCIExpressDevice {
     PCIEAERLog aer_log;
 };
 
+#define COMPAT_PROP_PCP "power_controller_present"
+
 /* PCI express capability helper functions */
 int pcie_cap_init(PCIDevice *dev, uint8_t offset, uint8_t type, uint8_t port);
 int pcie_endpoint_cap_init(PCIDevice *dev, uint8_t offset);