[Qemu-devel] [PATCH v2 2/3] hw/pci: add teardown function for PCI resource reserve capability

[Jing Liu <jing2.liu@linux.intel.com>]

Clean up the PCI config space of resource reserve capability.

Signed-off-by: Jing Liu <jing2.liu@linux.intel.com>
---
 hw/pci/pci_bridge.c         | 9 +++++++++
 include/hw/pci/pci_bridge.h | 1 +
 2 files changed, 10 insertions(+)

diff --git a/hw/pci/pci_bridge.c b/hw/pci/pci_bridge.c
index 15b055e..dbcee90 100644
--- a/hw/pci/pci_bridge.c
+++ b/hw/pci/pci_bridge.c
@@ -465,6 +465,15 @@ int pci_bridge_qemu_reserve_cap_init(PCIDevice *dev, int cap_offset,
     return 0;
 }
 
+void pci_bridge_qemu_reserve_cap_uninit(PCIDevice *dev)
+{
+    uint8_t pos = pci_find_capability(dev, PCI_CAP_ID_VNDR);
+
+    pci_del_capability(dev, PCI_CAP_ID_VNDR, sizeof(PCIBridgeQemuCap));
+    memset(dev->config + pos + PCI_CAP_FLAGS, 0,
+           sizeof(PCIBridgeQemuCap) - PCI_CAP_FLAGS);
+}
+
 static const TypeInfo pci_bridge_type_info = {
     .name = TYPE_PCI_BRIDGE,
     .parent = TYPE_PCI_DEVICE,
diff --git a/include/hw/pci/pci_bridge.h b/include/hw/pci/pci_bridge.h
index 6186a32..b1e25ad 100644
--- a/include/hw/pci/pci_bridge.h
+++ b/include/hw/pci/pci_bridge.h
@@ -147,4 +147,5 @@ typedef struct PCIResReserve {
 int pci_bridge_qemu_reserve_cap_init(PCIDevice *dev, int cap_offset,
                                PCIResReserve res_reserve, Error **errp);
 
+void pci_bridge_qemu_reserve_cap_uninit(PCIDevice *dev);
 #endif /* QEMU_PCI_BRIDGE_H */
-- 
1.8.3.1