[libvirt PATCH v2 08/22] qemu: Tweak some code

[Andrea Bolognani <abologna@xxxxxxxxxx>]

The altered code is functionally equivalent to the previous one,
but it's already laid down in a way that will make further
changes easier and less messy.

Signed-off-by: Andrea Bolognani <abologna@xxxxxxxxxx>
---
 src/qemu/qemu_command.c        | 18 +++++++++---------
 src/qemu/qemu_domain_address.c | 23 ++++++++++++++++++++++-
 2 files changed, 31 insertions(+), 10 deletions(-)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index d6df50ec73..74e5bac7a2 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -952,6 +952,9 @@ qemuBuildVirtioDevGetConfigDev(const virDomainDeviceDef *device,
         }
             break;
 
+        case VIR_DOMAIN_DEVICE_IOMMU:
+            break;
+
         case VIR_DOMAIN_DEVICE_LEASE:
         case VIR_DOMAIN_DEVICE_SOUND:
         case VIR_DOMAIN_DEVICE_WATCHDOG:
@@ -966,7 +969,6 @@ qemuBuildVirtioDevGetConfigDev(const virDomainDeviceDef *device,
         case VIR_DOMAIN_DEVICE_TPM:
         case VIR_DOMAIN_DEVICE_PANIC:
         case VIR_DOMAIN_DEVICE_MEMORY:
-        case VIR_DOMAIN_DEVICE_IOMMU:
         case VIR_DOMAIN_DEVICE_AUDIO:
         case VIR_DOMAIN_DEVICE_LAST:
         default:
@@ -6540,14 +6542,13 @@ qemuBuildIOMMUCommandLine(virCommand *cmd,
                           virQEMUCaps *qemuCaps)
 {
     const virDomainIOMMUDef *iommu = def->iommu;
+    g_autoptr(virJSONValue) props = NULL;
 
     if (!iommu)
         return 0;
 
     switch (iommu->model) {
-    case VIR_DOMAIN_IOMMU_MODEL_INTEL: {
-        g_autoptr(virJSONValue) props = NULL;
-
+    case VIR_DOMAIN_IOMMU_MODEL_INTEL:
         if (virJSONValueObjectCreate(&props,
                                      "s:driver", "intel-iommu",
                                      "S:intremap", qemuOnOffAuto(iommu->intremap),
@@ -6562,7 +6563,6 @@ qemuBuildIOMMUCommandLine(virCommand *cmd,
             return -1;
 
         return 0;
-    }
 
     case VIR_DOMAIN_IOMMU_MODEL_SMMUV3:
         /* There is no -device for SMMUv3, so nothing to be done here */
@@ -7154,14 +7154,14 @@ qemuBuildMachineCommandLine(virCommand *cmd,
 
     if (def->iommu) {
         switch (def->iommu->model) {
-        case VIR_DOMAIN_IOMMU_MODEL_INTEL:
-            /* The 'intel' IOMMu is formatted in qemuBuildIOMMUCommandLine */
-            break;
-
         case VIR_DOMAIN_IOMMU_MODEL_SMMUV3:
             virBufferAddLit(&buf, ",iommu=smmuv3");
             break;
 
+        case VIR_DOMAIN_IOMMU_MODEL_INTEL:
+            /* These IOMMUs are formatted in qemuBuildIOMMUCommandLine */
+            break;
+
         case VIR_DOMAIN_IOMMU_MODEL_LAST:
         default:
             virReportEnumRangeError(virDomainIOMMUModel, def->iommu->model);
diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c
index c43ad23cf5..733fa35444 100644
--- a/src/qemu/qemu_domain_address.c
+++ b/src/qemu/qemu_domain_address.c
@@ -1001,6 +1001,16 @@ qemuDomainDeviceCalculatePCIConnectFlags(virDomainDeviceDef *dev,
         }
         break;
 
+    case VIR_DOMAIN_DEVICE_IOMMU:
+        switch ((virDomainIOMMUModel) dev->data.iommu->model) {
+            case VIR_DOMAIN_IOMMU_MODEL_INTEL:
+            case VIR_DOMAIN_IOMMU_MODEL_SMMUV3:
+            case VIR_DOMAIN_IOMMU_MODEL_LAST:
+                /* These are not PCI devices */
+                return 0;
+        }
+        break;
+
     case VIR_DOMAIN_DEVICE_VSOCK:
         switch ((virDomainVsockModel) dev->data.vsock->model) {
         case VIR_DOMAIN_VSOCK_MODEL_VIRTIO_TRANSITIONAL:
@@ -1040,7 +1050,6 @@ qemuDomainDeviceCalculatePCIConnectFlags(virDomainDeviceDef *dev,
         /* These devices don't even have a DeviceInfo */
     case VIR_DOMAIN_DEVICE_LEASE:
     case VIR_DOMAIN_DEVICE_GRAPHICS:
-    case VIR_DOMAIN_DEVICE_IOMMU:
     case VIR_DOMAIN_DEVICE_AUDIO:
     case VIR_DOMAIN_DEVICE_LAST:
     case VIR_DOMAIN_DEVICE_NONE:
@@ -2369,6 +2378,18 @@ qemuDomainAssignDevicePCISlots(virDomainDef *def,
         /* Nada - none are PCI based (yet) */
     }
 
+    if (def->iommu) {
+        virDomainIOMMUDef *iommu = def->iommu;
+
+        switch ((virDomainIOMMUModel) iommu->model) {
+        case VIR_DOMAIN_IOMMU_MODEL_INTEL:
+        case VIR_DOMAIN_IOMMU_MODEL_SMMUV3:
+        case VIR_DOMAIN_IOMMU_MODEL_LAST:
+            /* These are not PCI devices */
+            break;
+        }
+    }
+
     if (def->vsock &&
         virDeviceInfoPCIAddressIsWanted(&def->vsock->info)) {
 
-- 
2.31.1