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[libvirt] [PATCH 09/26] conf: Move index number checking to drivers



pSeries guests will soon be allowed to have multiple
PHBs (pci-root controllers), which of course means that
all but one of them will have a non-zero index; hence,
we'll need to relax the current check.

However, right now the check is performed in the conf
module, which is generic rather than tied to the QEMU
driver, and where we don't have information such as the
guest machine type available.

To make this change of behavior possible down the line,
we need to move the check from the XML parser to the
driver. Unfortunately, this means duplicating code :(
---
 src/bhyve/bhyve_domain.c   | 15 +++++++++++++++
 src/conf/domain_conf.c     |  6 ------
 src/libxl/libxl_domain.c   | 14 ++++++++++++++
 src/lxc/lxc_domain.c       | 14 ++++++++++++++
 src/openvz/openvz_driver.c | 14 ++++++++++++++
 src/qemu/qemu_domain.c     |  9 +++++++++
 src/uml/uml_driver.c       | 14 ++++++++++++++
 src/vz/vz_driver.c         | 14 ++++++++++++++
 src/xen/xen_driver.c       | 14 ++++++++++++++
 9 files changed, 108 insertions(+), 6 deletions(-)

diff --git a/src/bhyve/bhyve_domain.c b/src/bhyve/bhyve_domain.c
index 76b4fac..05c1508 100644
--- a/src/bhyve/bhyve_domain.c
+++ b/src/bhyve/bhyve_domain.c
@@ -122,6 +122,21 @@ bhyveDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
             bhyveDomainDiskDefAssignAddress(driver, disk, def) < 0)
             return -1;
     }
+
+    if (dev->type == VIR_DOMAIN_DEVICE_CONTROLLER) {
+        virDomainControllerDefPtr cont = dev->data.controller;
+
+        if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_PCI &&
+            (cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT ||
+             cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT) &&
+            cont->idx != 0) {
+            virReportError(VIR_ERR_XML_ERROR, "%s",
+                           _("pci-root and pcie-root controllers "
+                             "should have index 0"));
+            return -1;
+        }
+    }
+
     return 0;
 }
 
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index c7e20b8..d5dff8e 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -9059,12 +9059,6 @@ virDomainControllerDefParseXML(xmlNodePtr node,
                                  "have an address"));
                 goto error;
             }
-            if (def->idx > 0) {
-                virReportError(VIR_ERR_XML_ERROR, "%s",
-                               _("pci-root and pcie-root controllers "
-                                 "should have index 0"));
-                goto error;
-            }
             if ((rc = virDomainParseScaledValue("./pcihole64", NULL,
                                                 ctxt, &bytes, 1024,
                                                 1024ULL * ULONG_MAX, false)) < 0)
diff --git a/src/libxl/libxl_domain.c b/src/libxl/libxl_domain.c
index 256cf1d..59ef2fb 100644
--- a/src/libxl/libxl_domain.c
+++ b/src/libxl/libxl_domain.c
@@ -379,6 +379,20 @@ libxlDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
             virDomainDiskSetFormat(disk, VIR_STORAGE_FILE_RAW);
     }
 
+    if (dev->type == VIR_DOMAIN_DEVICE_CONTROLLER) {
+        virDomainControllerDefPtr cont = dev->data.controller;
+
+        if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_PCI &&
+            (cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT ||
+             cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT) &&
+            cont->idx != 0) {
+            virReportError(VIR_ERR_XML_ERROR, "%s",
+                           _("pci-root and pcie-root controllers "
+                             "should have index 0"));
+            return -1;
+        }
+    }
+
     return 0;
 }
 
diff --git a/src/lxc/lxc_domain.c b/src/lxc/lxc_domain.c
index 3a7404f..a50f6fe 100644
--- a/src/lxc/lxc_domain.c
+++ b/src/lxc/lxc_domain.c
@@ -389,6 +389,20 @@ virLXCDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
         dev->data.chr->targetType == VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_NONE)
         dev->data.chr->targetType = VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_LXC;
 
+    if (dev->type == VIR_DOMAIN_DEVICE_CONTROLLER) {
+        virDomainControllerDefPtr cont = dev->data.controller;
+
+        if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_PCI &&
+            (cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT ||
+             cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT) &&
+            cont->idx != 0) {
+            virReportError(VIR_ERR_XML_ERROR, "%s",
+                           _("pci-root and pcie-root controllers "
+                             "should have index 0"));
+            return -1;
+        }
+    }
+
     return 0;
 }
 
diff --git a/src/openvz/openvz_driver.c b/src/openvz/openvz_driver.c
index 9c4a196..058d830 100644
--- a/src/openvz/openvz_driver.c
+++ b/src/openvz/openvz_driver.c
@@ -127,6 +127,20 @@ openvzDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
         return -1;
     }
 
+    if (dev->type == VIR_DOMAIN_DEVICE_CONTROLLER) {
+        virDomainControllerDefPtr cont = dev->data.controller;
+
+        if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_PCI &&
+            (cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT ||
+             cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT) &&
+            cont->idx != 0) {
+            virReportError(VIR_ERR_XML_ERROR, "%s",
+                           _("pci-root and pcie-root controllers "
+                             "should have index 0"));
+            return -1;
+        }
+    }
+
     return 0;
 }
 
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 0a85ee9..18512cb 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -3404,6 +3404,15 @@ qemuDomainControllerDefPostParse(virDomainControllerDefPtr cont,
         break;
 
     case VIR_DOMAIN_CONTROLLER_TYPE_PCI:
+        if  ((cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT ||
+              cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT) &&
+             cont->idx != 0) {
+            virReportError(VIR_ERR_XML_ERROR, "%s",
+                           _("pci-root and pcie-root controllers "
+                             "should have index 0"));
+            return -1;
+        }
+
         if (cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCI_EXPANDER_BUS &&
             !qemuDomainIsI440FX(def)) {
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
diff --git a/src/uml/uml_driver.c b/src/uml/uml_driver.c
index 03edc89..d9df3c5 100644
--- a/src/uml/uml_driver.c
+++ b/src/uml/uml_driver.c
@@ -426,6 +426,20 @@ umlDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
         return -1;
     }
 
+    if (dev->type == VIR_DOMAIN_DEVICE_CONTROLLER) {
+        virDomainControllerDefPtr cont = dev->data.controller;
+
+        if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_PCI &&
+            (cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT ||
+             cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT) &&
+            cont->idx != 0) {
+            virReportError(VIR_ERR_XML_ERROR, "%s",
+                           _("pci-root and pcie-root controllers "
+                             "should have index 0"));
+            return -1;
+        }
+    }
+
     return 0;
 }
 
diff --git a/src/vz/vz_driver.c b/src/vz/vz_driver.c
index ef7b453..e988e7c 100644
--- a/src/vz/vz_driver.c
+++ b/src/vz/vz_driver.c
@@ -283,6 +283,20 @@ vzDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
         VIR_STRDUP(dev->data.net->model, "e1000") < 0)
         return -1;
 
+    if (dev->type == VIR_DOMAIN_DEVICE_CONTROLLER) {
+        virDomainControllerDefPtr cont = dev->data.controller;
+
+        if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_PCI &&
+            (cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT ||
+             cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT) &&
+            cont->idx != 0) {
+            virReportError(VIR_ERR_XML_ERROR, "%s",
+                           _("pci-root and pcie-root controllers "
+                             "should have index 0"));
+            return -1;
+        }
+    }
+
     return 0;
 }
 
diff --git a/src/xen/xen_driver.c b/src/xen/xen_driver.c
index 4d14089..b681764 100644
--- a/src/xen/xen_driver.c
+++ b/src/xen/xen_driver.c
@@ -362,6 +362,20 @@ xenDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
         }
     }
 
+    if (dev->type == VIR_DOMAIN_DEVICE_CONTROLLER) {
+        virDomainControllerDefPtr cont = dev->data.controller;
+
+        if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_PCI &&
+            (cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT ||
+             cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT) &&
+            cont->idx != 0) {
+            virReportError(VIR_ERR_XML_ERROR, "%s",
+                           _("pci-root and pcie-root controllers "
+                             "should have index 0"));
+            return -1;
+        }
+    }
+
     return 0;
 }
 
-- 
2.7.5


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