From 50adb8a660c97662ed96aed40f5b04959229976b Mon Sep 17 00:00:00 2001
From: Laine Stump <laine@laine.org>
Date: Fri, 2 Sep 2016 21:41:43 -0400
Subject: [PATCH] qemu: new functions qemuDomainMachineHasPCI[e]Root()

These functions provide a simple one line method of learning if the
current domain has a pci-root or pcie-root bus.
---
 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 8cba755c9b..bd2d16704e 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -5619,6 +5619,36 @@ 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)
 {
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index 0c1689b57f..f538d2259d 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -658,6 +658,8 @@ 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);