[PATCH v6 13/15] hw/pci: Determine if rombar is explicitly enabled

[Akihiko Odaki <akihiko.odaki@daynix.com>]

vfio determines if rombar is explicitly enabled by inspecting QDict.
Inspecting QDict is not nice because QDict is untyped and depends on the
details on the external interface. Add an infrastructure to determine if
rombar is explicitly enabled to hw/pci.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
 include/hw/pci/pci_device.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/hw/pci/pci_device.h b/include/hw/pci/pci_device.h
index ca151325085d..c4fdc96ef50d 100644
--- a/include/hw/pci/pci_device.h
+++ b/include/hw/pci/pci_device.h
@@ -205,6 +205,11 @@ static inline uint16_t pci_get_bdf(PCIDevice *dev)
     return PCI_BUILD_BDF(pci_bus_num(pci_get_bus(dev)), dev->devfn);
 }
 
+static inline bool pci_rom_bar_explicitly_enabled(PCIDevice *dev)
+{
+    return dev->rom_bar && dev->rom_bar != -1;
+}
+
 static inline void pci_set_power(PCIDevice *pci_dev, bool state)
 {
     /*

-- 
2.43.1