[PATCH v2 07/29] qemu_domain.c: disable default devices for PowerNV machines

[Daniel Henrique Barboza]

PowerNV domains will support pcie-root devices as PHBs, in a similar
fashion as pSeries domains supports the spapr-pci-host-bridge as a
pci-root model.

Set 'addPCIRoot' to false since we'll not be using this buses in this
machine. 'addDefaultMemballoon' is also set to false since the balloon
driver wasn't really tested with the PowerNV kernel.

Reviewed-by: Peter Krempa <pkrempa at redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413 at gmail.com>
---
 src/qemu/qemu_domain.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 1b4b293388..89dbc20eee 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -3670,6 +3670,15 @@ qemuDomainDefAddDefaultDevices(virQEMUDriver *driver,
          * add the definition if not already present */
         if (qemuDomainIsPSeries(def))
             addPanicDevice = true;
+
+        if (qemuDomainIsPowerNV(def)) {
+            addPCIRoot = false;
+            addDefaultUSB = false;
+            addDefaultUSBKBD = false;
+            addDefaultUSBMouse = false;
+            addDefaultMemballoon = false;
+        }
+
         break;
 
     case VIR_ARCH_ALPHA:
-- 
2.34.1