[libvirt] [PATCH v4 01/25] qemu: new functions qemuDomainMachineHasPCI[e]Root()

[Laine Stump]

These functions provide a simple one line method of learning if the
current domain has a pci-root or pcie-root bus.
---

Changes: "reversed polarity" of 2nd if clause as suggested by Andrea.

 src/qemu/qemu_domain.c | 30 ++++++++++++++++++++++++++++++
 src/qemu/qemu_domain.h |  2 ++
 2 files changed, 32 insertions(+)

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 0c9416f..aa54206 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -5352,6 +5352,36 @@ qemuDomainMachineIsI440FX(const virDomainDef *def)
 
 
 bool
+qemuDomainMachineHasPCIRoot(const virDomainDef *def)
+{
+    int root = virDomainControllerFind(def, VIR_DOMAIN_CONTROLLER_TYPE_PCI, 0);
+
+    if (root < 0)
+        return false;
+
+    if (def->controllers[root]->model != VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT)
+        return false;
+
+    return true;
+}
+
+
+bool
+qemuDomainMachineHasPCIeRoot(const virDomainDef *def)
+{
+    int root = virDomainControllerFind(def, VIR_DOMAIN_CONTROLLER_TYPE_PCI, 0);
+
+    if (root < 0)
+        return false;
+
+    if (def->controllers[root]->model != VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT)
+        return false;
+
+    return true;
+}
+
+
+bool
 qemuDomainMachineNeedsFDC(const virDomainDef *def)
 {
     char *p = STRSKIP(def->os.machine, "pc-q35-");
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index dee5d93..8302630 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -640,6 +640,8 @@ virDomainChrDefPtr qemuFindAgentConfig(virDomainDefPtr def);
 
 bool qemuDomainMachineIsQ35(const virDomainDef *def);
 bool qemuDomainMachineIsI440FX(const virDomainDef *def);
+bool qemuDomainMachineHasPCIRoot(const virDomainDef *def);
+bool qemuDomainMachineHasPCIeRoot(const virDomainDef *def);
 bool qemuDomainMachineNeedsFDC(const virDomainDef *def);
 bool qemuDomainMachineIsS390CCW(const virDomainDef *def);
 bool qemuDomainMachineIsVirt(const virDomainDef *def);
-- 
2.7.4