tests/libqos: pci-pc driver and interface nodes

Add pci-bus-pc node, move QPCIBusPC struct declaration in its header
(since it will be needed by other drivers) and introduce a setter method
for drivers that do not need to allocate but have to initialize QPCIBusPC.

Signed-off-by: Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 30 insertions, 2 deletions

diff --git a/tests/libqos/pci.c b/tests/libqos/pci.c
index e8c342c257..8257904ba7 100644
--- a/tests/libqos/pci.c
+++ b/tests/libqos/pci.c
@@ -15,6 +15,7 @@
 
 #include "hw/pci/pci_regs.h"
 #include "qemu/host-utils.h"
+#include "libqos/qgraph.h"
 
 void qpci_device_foreach(QPCIBus *bus, int vendor_id, int device_id,
                          void (*func)(QPCIDevice *dev, int devfn, void *data),
@@ -50,13 +51,20 @@ void qpci_device_foreach(QPCIBus *bus, int vendor_id, int device_id,
     }
 }
 
+static void qpci_device_set(QPCIDevice *dev, QPCIBus *bus, int devfn)
+{
+    g_assert(dev);
+
+    dev->bus = bus;
+    dev->devfn = devfn;
+}
+
 QPCIDevice *qpci_device_find(QPCIBus *bus, int devfn)
 {
     QPCIDevice *dev;
 
     dev = g_malloc0(sizeof(*dev));
-    dev->bus = bus;
-    dev->devfn = devfn;
+    qpci_device_set(dev, bus, devfn);
 
     if (qpci_config_readw(dev, PCI_VENDOR_ID) == 0xFFFF) {
         g_free(dev);
@@ -66,6 +74,17 @@ QPCIDevice *qpci_device_find(QPCIBus *bus, int devfn)
     return dev;
 }
 
+void qpci_device_init(QPCIDevice *dev, QPCIBus *bus, QPCIAddress *addr)
+{
+    uint16_t vendor_id, device_id;
+
+    qpci_device_set(dev, bus, addr->devfn);
+    vendor_id = qpci_config_readw(dev, PCI_VENDOR_ID);
+    device_id = qpci_config_readw(dev, PCI_DEVICE_ID);
+    g_assert(!addr->vendor_id || vendor_id == addr->vendor_id);
+    g_assert(!addr->device_id || device_id == addr->device_id);
+}
+
 void qpci_device_enable(QPCIDevice *dev)
 {
     uint16_t cmd;
@@ -395,3 +414,12 @@ QPCIBar qpci_legacy_iomap(QPCIDevice *dev, uint16_t addr)
     QPCIBar bar = { .addr = addr };
     return bar;
 }
+
+void add_qpci_address(QOSGraphEdgeOptions *opts, QPCIAddress *addr)
+{
+    g_assert(addr);
+    g_assert(opts);
+
+    opts->arg = addr;
+    opts->size_arg = sizeof(QPCIAddress);
+}