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[libvirt] [PATCH 4/6] conf: relocate rombar and boot order parse/format



Since these two items are now in the virDomainDeviceInfo struct, it
makes sense to parse/format them in the functions written to
parse/format that structure. Not all types of devices allow them, so
two internal flags are added to indicate when it is appropriate to do
so.

I was lucky - only one test case needed to be re-ordered!
---
 src/conf/domain_conf.c                             |  224 +++++++++++---------
 tests/qemuxml2argvdata/qemuxml2argv-boot-order.xml |    2 +-
 2 files changed, 123 insertions(+), 103 deletions(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 8a35e6e..9723d95 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -67,6 +67,8 @@ typedef enum {
    VIR_DOMAIN_XML_INTERNAL_ACTUAL_NET = (1<<17),
    /* dump/parse original states of host PCI device */
    VIR_DOMAIN_XML_INTERNAL_PCI_ORIG_STATES = (1<<18),
+   VIR_DOMAIN_XML_INTERNAL_ALLOW_ROM = (1<<19),
+   VIR_DOMAIN_XML_INTERNAL_ALLOW_BOOT = (1<<20),
 } virDomainXMLInternalFlags;
 
 VIR_ENUM_IMPL(virDomainTaint, VIR_DOMAIN_TAINT_LAST,
@@ -1908,6 +1910,9 @@ virDomainDeviceInfoFormat(virBufferPtr buf,
                           virDomainDeviceInfoPtr info,
                           unsigned int flags)
 {
+    if ((flags & VIR_DOMAIN_XML_INTERNAL_ALLOW_BOOT) && info->bootIndex)
+        virBufferAsprintf(buf, "      <boot order='%d'/>\n", info->bootIndex);
+
     if (info->alias &&
         !(flags & VIR_DOMAIN_XML_INACTIVE)) {
         virBufferAsprintf(buf, "      <alias name='%s'/>\n", info->alias);
@@ -1918,6 +1923,18 @@ virDomainDeviceInfoFormat(virBufferPtr buf,
                           info->master.usb.startport);
     }
 
+    if ((flags & VIR_DOMAIN_XML_INTERNAL_ALLOW_ROM) && info->rombar) {
+        const char *rombar
+            = virDomainPciRombarModeTypeToString(info->rombar);
+        if (!rombar) {
+            virDomainReportError(VIR_ERR_INTERNAL_ERROR,
+                                 _("unexpected rom bar value %d"),
+                                 info->rombar);
+            return -1;
+        }
+        virBufferAsprintf(buf, "      <rom bar='%s'/>\n", rombar);
+    }
+
     if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE)
         return 0;
 
@@ -2266,11 +2283,56 @@ cleanup:
     return ret;
 }
 
+static int
+virDomainDeviceBootParseXML(xmlNodePtr node,
+                            int *bootIndex,
+                            virBitmapPtr bootMap)
+{
+    char *order;
+    int boot;
+    int ret = -1;
+
+    order = virXMLPropString(node, "order");
+    if (!order) {
+        virDomainReportError(VIR_ERR_INTERNAL_ERROR,
+                            "%s", _("missing boot order attribute"));
+        goto cleanup;
+    } else if (virStrToLong_i(order, NULL, 10, &boot) < 0 ||
+               boot <= 0) {
+        virDomainReportError(VIR_ERR_INTERNAL_ERROR,
+                _("incorrect boot order '%s', expecting positive integer"),
+                order);
+        goto cleanup;
+    }
+
+    if (bootMap) {
+        bool set;
+        if (virBitmapGetBit(bootMap, boot - 1, &set) < 0) {
+            virDomainReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+                    _("boot orders have to be contiguous and starting from 1"));
+            goto cleanup;
+        } else if (set) {
+            virDomainReportError(VIR_ERR_INTERNAL_ERROR,
+                    _("boot order %d used for more than one device"), boot);
+            goto cleanup;
+        }
+        ignore_value(virBitmapSetBit(bootMap, boot - 1));
+    }
+
+    *bootIndex = boot;
+    ret = 0;
+
+cleanup:
+    VIR_FREE(order);
+    return ret;
+}
+
 /* Parse the XML definition for a device address
  * @param node XML nodeset to parse for device address definition
  */
 static int
 virDomainDeviceInfoParseXML(xmlNodePtr node,
+                            virBitmapPtr bootMap,
                             virDomainDeviceInfoPtr info,
                             unsigned int flags)
 {
@@ -2278,6 +2340,8 @@ virDomainDeviceInfoParseXML(xmlNodePtr node,
     xmlNodePtr address = NULL;
     xmlNodePtr master = NULL;
     xmlNodePtr alias = NULL;
+    xmlNodePtr boot = NULL;
+    xmlNodePtr rom = NULL;
     char *type = NULL;
     int ret = -1;
 
@@ -2296,6 +2360,14 @@ virDomainDeviceInfoParseXML(xmlNodePtr node,
             } else if (master == NULL &&
                        xmlStrEqual(cur->name, BAD_CAST "master")) {
                 master = cur;
+            } else if (boot == NULL && bootMap &&
+                       (flags & VIR_DOMAIN_XML_INTERNAL_ALLOW_BOOT) &&
+                       xmlStrEqual(cur->name, BAD_CAST "boot")) {
+                boot = cur;
+            } else if (rom == NULL &&
+                       (flags & VIR_DOMAIN_XML_INTERNAL_ALLOW_ROM) &&
+                       xmlStrEqual(cur->name, BAD_CAST "rom")) {
+                rom = cur;
             }
         }
         cur = cur->next;
@@ -2310,6 +2382,27 @@ virDomainDeviceInfoParseXML(xmlNodePtr node,
             goto cleanup;
     }
 
+    if (boot) {
+        if (virDomainDeviceBootParseXML(boot, &info->bootIndex, bootMap))
+            goto cleanup;
+    }
+
+    if (rom) {
+        char *rombar = virXMLPropString(rom, "bar");
+        if (!rombar) {
+            virDomainReportError(VIR_ERR_XML_ERROR,
+                                 "%s", _("missing rom bar attribute"));
+            goto cleanup;
+        }
+        if ((info->rombar = virDomainPciRombarModeTypeFromString(rombar)) <= 0) {
+            virDomainReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                                 _("unknown rom bar value '%s'"), rombar);
+            VIR_FREE(rombar);
+            goto cleanup;
+        }
+        VIR_FREE(rombar);
+    }
+
     if (!address)
         return 0;
 
@@ -2376,50 +2469,6 @@ cleanup:
 }
 
 static int
-virDomainDeviceBootParseXML(xmlNodePtr node,
-                            int *bootIndex,
-                            virBitmapPtr bootMap)
-{
-    char *order;
-    int boot;
-    int ret = -1;
-
-    order = virXMLPropString(node, "order");
-    if (!order) {
-        virDomainReportError(VIR_ERR_INTERNAL_ERROR,
-                            "%s", _("missing boot order attribute"));
-        goto cleanup;
-    } else if (virStrToLong_i(order, NULL, 10, &boot) < 0 ||
-               boot <= 0) {
-        virDomainReportError(VIR_ERR_INTERNAL_ERROR,
-                _("incorrect boot order '%s', expecting positive integer"),
-                order);
-        goto cleanup;
-    }
-
-    if (bootMap) {
-        bool set;
-        if (virBitmapGetBit(bootMap, boot - 1, &set) < 0) {
-            virDomainReportError(VIR_ERR_INTERNAL_ERROR, "%s",
-                    _("boot orders have to be contiguous and starting from 1"));
-            goto cleanup;
-        } else if (set) {
-            virDomainReportError(VIR_ERR_INTERNAL_ERROR,
-                    _("boot order %d used for more than one device"), boot);
-            goto cleanup;
-        }
-        ignore_value(virBitmapSetBit(bootMap, boot - 1));
-    }
-
-    *bootIndex = boot;
-    ret = 0;
-
-cleanup:
-    VIR_FREE(order);
-    return ret;
-}
-
-static int
 virDomainParseLegacyDeviceAddress(char *devaddr,
                                   virDomainDevicePCIAddressPtr pci)
 {
@@ -3021,9 +3070,7 @@ virDomainDiskDefParseXML(virCapsPtr caps,
                        (xmlStrEqual(cur->name, BAD_CAST "serial"))) {
                 serial = (char *)xmlNodeGetContent(cur);
             } else if (xmlStrEqual(cur->name, BAD_CAST "boot")) {
-                if (virDomainDeviceBootParseXML(cur, &def->info.bootIndex,
-                                                bootMap))
-                    goto error;
+                /* boot is parsed as part of virDomainDeviceInfoParseXML */
             }
         }
         cur = cur->next;
@@ -3229,7 +3276,8 @@ virDomainDiskDefParseXML(virCapsPtr caps,
         }
         def->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI;
     } else {
-        if (virDomainDeviceInfoParseXML(node, &def->info, flags) < 0)
+        if (virDomainDeviceInfoParseXML(node, bootMap, &def->info,
+                                        flags | VIR_DOMAIN_XML_INTERNAL_ALLOW_BOOT) < 0)
             goto error;
     }
 
@@ -3389,7 +3437,7 @@ virDomainControllerDefParseXML(xmlNodePtr node,
         def->model = -1;
     }
 
-    if (virDomainDeviceInfoParseXML(node, &def->info, flags) < 0)
+    if (virDomainDeviceInfoParseXML(node, NULL, &def->info, flags) < 0)
         goto error;
 
     switch (def->type) {
@@ -3555,7 +3603,7 @@ virDomainFSDefParseXML(xmlNodePtr node,
     def->dst = target;
     target = NULL;
 
-    if (virDomainDeviceInfoParseXML(node, &def->info, flags) < 0)
+    if (virDomainDeviceInfoParseXML(node, NULL, &def->info, flags) < 0)
         goto error;
 
 cleanup:
@@ -3790,9 +3838,7 @@ virDomainNetDefParseXML(virCapsPtr caps,
                 /* Legacy back-compat. Don't add any more attributes here */
                 devaddr = virXMLPropString(cur, "devaddr");
             } else if (xmlStrEqual(cur->name, BAD_CAST "boot")) {
-                if (virDomainDeviceBootParseXML(cur, &def->info.bootIndex,
-                                                bootMap))
-                    goto error;
+                /* boot is parsed as part of virDomainDeviceInfoParseXML */
             } else if ((actual == NULL) &&
                        (flags & VIR_DOMAIN_XML_INTERNAL_ACTUAL_NET) &&
                        (def->type == VIR_DOMAIN_NET_TYPE_NETWORK) &&
@@ -3828,7 +3874,8 @@ virDomainNetDefParseXML(virCapsPtr caps,
         }
         def->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI;
     } else {
-        if (virDomainDeviceInfoParseXML(node, &def->info, flags) < 0)
+        if (virDomainDeviceInfoParseXML(node, bootMap, &def->info,
+                                        flags | VIR_DOMAIN_XML_INTERNAL_ALLOW_BOOT) < 0)
             goto error;
     }
 
@@ -4579,7 +4626,7 @@ virDomainChrDefParseXML(virCapsPtr caps,
         }
     }
 
-    if (virDomainDeviceInfoParseXML(node, &def->info, flags) < 0)
+    if (virDomainDeviceInfoParseXML(node, NULL, &def->info, flags) < 0)
         goto error;
 
 cleanup:
@@ -4700,7 +4747,7 @@ virDomainSmartcardDefParseXML(xmlNodePtr node,
         goto error;
     }
 
-    if (virDomainDeviceInfoParseXML(node, &def->info, flags) < 0)
+    if (virDomainDeviceInfoParseXML(node, NULL, &def->info, flags) < 0)
         goto error;
     if (def->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE &&
         def->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCID) {
@@ -4796,7 +4843,7 @@ virDomainInputDefParseXML(const char *ostype,
         }
     }
 
-    if (virDomainDeviceInfoParseXML(node, &def->info, flags) < 0)
+    if (virDomainDeviceInfoParseXML(node, NULL, &def->info, flags) < 0)
         goto error;
 
     if (def->bus == VIR_DOMAIN_INPUT_BUS_USB &&
@@ -4846,7 +4893,7 @@ virDomainHubDefParseXML(xmlNodePtr node, unsigned int flags)
         goto error;
     }
 
-    if (virDomainDeviceInfoParseXML(node, &def->info, flags) < 0)
+    if (virDomainDeviceInfoParseXML(node, NULL, &def->info, flags) < 0)
         goto error;
 
 cleanup:
@@ -5596,7 +5643,7 @@ virDomainSoundDefParseXML(const xmlNodePtr node,
         goto error;
     }
 
-    if (virDomainDeviceInfoParseXML(node, &def->info, flags) < 0)
+    if (virDomainDeviceInfoParseXML(node, NULL, &def->info, flags) < 0)
         goto error;
 
 cleanup:
@@ -5650,7 +5697,7 @@ virDomainWatchdogDefParseXML(const xmlNodePtr node,
         }
     }
 
-    if (virDomainDeviceInfoParseXML(node, &def->info, flags) < 0)
+    if (virDomainDeviceInfoParseXML(node, NULL, &def->info, flags) < 0)
         goto error;
 
 cleanup:
@@ -5690,7 +5737,7 @@ virDomainMemballoonDefParseXML(const xmlNodePtr node,
         goto error;
     }
 
-    if (virDomainDeviceInfoParseXML(node, &def->info, flags) < 0)
+    if (virDomainDeviceInfoParseXML(node, NULL, &def->info, flags) < 0)
         goto error;
 
 cleanup:
@@ -5939,7 +5986,7 @@ virDomainVideoDefParseXML(const xmlNodePtr node,
         def->heads = 1;
     }
 
-    if (virDomainDeviceInfoParseXML(node, &def->info, flags) < 0)
+    if (virDomainDeviceInfoParseXML(node, NULL, &def->info, flags) < 0)
         goto error;
 
     VIR_FREE(type);
@@ -6229,23 +6276,9 @@ virDomainHostdevDefParseXML(const xmlNodePtr node,
             } else if (xmlStrEqual(cur->name, BAD_CAST "alias")) {
                 /* alias is parsed as part of virDomainDeviceInfoParseXML */
             } else if (xmlStrEqual(cur->name, BAD_CAST "boot")) {
-                if (virDomainDeviceBootParseXML(cur, &def->info.bootIndex,
-                                                bootMap))
-                    goto error;
+                /* boot is parsed as part of virDomainDeviceInfoParseXML */
             } else if (xmlStrEqual(cur->name, BAD_CAST "rom")) {
-                char *rombar = virXMLPropString(cur, "bar");
-                if (!rombar) {
-                    virDomainReportError(VIR_ERR_XML_ERROR,
-                                         "%s", _("missing rom bar attribute"));
-                    goto error;
-                }
-                if ((def->info.rombar = virDomainPciRombarModeTypeFromString(rombar)) <= 0) {
-                    virDomainReportError(VIR_ERR_CONFIG_UNSUPPORTED,
-                                         _("unknown rom bar value '%s'"), rombar);
-                    VIR_FREE(rombar);
-                    goto error;
-                }
-                VIR_FREE(rombar);
+                /* rombar is parsed as part of virDomainDeviceInfoParseXML */
             } else {
                 virDomainReportError(VIR_ERR_INTERNAL_ERROR,
                                      _("unknown node %s"), cur->name);
@@ -6255,7 +6288,9 @@ virDomainHostdevDefParseXML(const xmlNodePtr node,
     }
 
     if (def->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
-        if (virDomainDeviceInfoParseXML(node, &def->info, flags) < 0)
+        if (virDomainDeviceInfoParseXML(node, bootMap, &def->info,
+                                        flags  | VIR_DOMAIN_XML_INTERNAL_ALLOW_BOOT
+                                        | VIR_DOMAIN_XML_INTERNAL_ALLOW_ROM) < 0)
             goto error;
     }
 
@@ -6339,7 +6374,7 @@ virDomainRedirdevDefParseXML(const xmlNodePtr node,
         def->source.chr.data.spicevmc = VIR_DOMAIN_CHR_SPICEVMC_USBREDIR;
     }
 
-    if (virDomainDeviceInfoParseXML(node, &def->info, flags) < 0)
+    if (virDomainDeviceInfoParseXML(node, NULL, &def->info, flags) < 0)
         goto error;
 
     if (def->bus == VIR_DOMAIN_REDIRDEV_BUS_USB &&
@@ -10088,8 +10123,6 @@ virDomainDiskDefFormat(virBufferPtr buf,
         virBufferAddLit(buf, "      </iotune>\n");
     }
 
-    if (def->info.bootIndex)
-        virBufferAsprintf(buf, "      <boot order='%d'/>\n", def->info.bootIndex);
     if (def->readonly)
         virBufferAddLit(buf, "      <readonly/>\n");
     if (def->shared)
@@ -10104,7 +10137,8 @@ virDomainDiskDefFormat(virBufferPtr buf,
         virBufferAdjustIndent(buf, -6);
     }
 
-    if (virDomainDeviceInfoFormat(buf, &def->info, flags) < 0)
+    if (virDomainDeviceInfoFormat(buf, &def->info,
+                                  flags | VIR_DOMAIN_XML_INTERNAL_ALLOW_BOOT) < 0)
         return -1;
 
     virBufferAddLit(buf, "    </disk>\n");
@@ -10453,8 +10487,6 @@ virDomainNetDefFormat(virBufferPtr buf,
             return -1;
         virBufferAdjustIndent(buf, -6);
     }
-    if (def->info.bootIndex)
-        virBufferAsprintf(buf, "      <boot order='%d'/>\n", def->info.bootIndex);
 
     if (def->tune.sndbuf_specified) {
         virBufferAddLit(buf,   "      <tune>\n");
@@ -10472,7 +10504,8 @@ virDomainNetDefFormat(virBufferPtr buf,
         return -1;
     virBufferAdjustIndent(buf, -6);
 
-    if (virDomainDeviceInfoFormat(buf, &def->info, flags) < 0)
+    if (virDomainDeviceInfoFormat(buf, &def->info,
+                                  flags | VIR_DOMAIN_XML_INTERNAL_ALLOW_BOOT) < 0)
         return -1;
 
     virBufferAddLit(buf, "    </interface>\n");
@@ -11304,24 +11337,11 @@ virDomainHostdevDefFormat(virBufferPtr buf,
 
     virBufferAddLit(buf, "      </source>\n");
 
-    if (def->info.bootIndex)
-        virBufferAsprintf(buf, "      <boot order='%d'/>\n", def->info.bootIndex);
-
-    if (virDomainDeviceInfoFormat(buf, &def->info, flags) < 0)
+    if (virDomainDeviceInfoFormat(buf, &def->info,
+                                  flags | VIR_DOMAIN_XML_INTERNAL_ALLOW_BOOT
+                                  | VIR_DOMAIN_XML_INTERNAL_ALLOW_ROM) < 0)
         return -1;
 
-    if (def->info.rombar) {
-        const char *rombar
-            = virDomainPciRombarModeTypeToString(def->info.rombar);
-        if (!rombar) {
-            virDomainReportError(VIR_ERR_INTERNAL_ERROR,
-                                 _("unexpected rom bar value %d"),
-                                 def->info.rombar);
-            return -1;
-        }
-        virBufferAsprintf(buf, "      <rom bar='%s'/>\n", rombar);
-    }
-
     virBufferAddLit(buf, "    </hostdev>\n");
 
     return 0;
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-boot-order.xml b/tests/qemuxml2argvdata/qemuxml2argv-boot-order.xml
index 0022c92..68741fe 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-boot-order.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-boot-order.xml
@@ -21,8 +21,8 @@
     <disk type='file' device='cdrom'>
       <source file='/root/boot.iso'/>
       <target dev='hdc' bus='ide'/>
-      <boot order='1'/>
       <readonly/>
+      <boot order='1'/>
       <address type='drive' controller='0' bus='1' unit='0'/>
     </disk>
     <disk type='network' device='disk'>
-- 
1.7.7.5


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