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[libvirt] [PATCH v4 15/30] qemu: Validate target model for serial devices



Target model and target type must agree for the configuration
to make sense, so check that's actually the case and error out
otherwise.

Signed-off-by: Andrea Bolognani <abologna redhat com>
Reviewed-by: Pavel Hrdina <phrdina redhat com>
---
 src/libvirt_private.syms |  2 ++
 src/qemu/qemu_domain.c   | 41 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 875e474b6..290198ddd 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -209,6 +209,8 @@ virDomainChrGetDomainPtrs;
 virDomainChrInsertPreAlloced;
 virDomainChrPreAlloc;
 virDomainChrRemove;
+virDomainChrSerialTargetModelTypeFromString;
+virDomainChrSerialTargetModelTypeToString;
 virDomainChrSerialTargetTypeFromString;
 virDomainChrSerialTargetTypeToString;
 virDomainChrSourceDefClear;
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index e141e1132..0b033f496 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -3479,6 +3479,25 @@ qemuDomainChrSerialTargetTypeToAddressType(int targetType)
 }
 
 
+static int
+qemuDomainChrSerialTargetModelToTargetType(int targetModel)
+{
+    switch ((virDomainChrSerialTargetModel) targetModel) {
+    case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_ISA_SERIAL:
+        return VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_ISA;
+    case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_USB_SERIAL:
+        return VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_USB;
+    case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_PCI_SERIAL:
+        return VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_PCI;
+    case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_NONE:
+    case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_LAST:
+        break;
+    }
+
+    return VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_NONE;
+}
+
+
 static int
 qemuDomainChrTargetDefValidate(const virDomainDef *def,
                                const virDomainChrDef *chr)
@@ -3515,6 +3534,28 @@ qemuDomainChrTargetDefValidate(const virDomainDef *def,
         case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_LAST:
             break;
         }
+
+        /* Validate target model */
+        switch ((virDomainChrSerialTargetModel) chr->targetModel) {
+        case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_ISA_SERIAL:
+        case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_USB_SERIAL:
+        case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_PCI_SERIAL:
+
+            expected = qemuDomainChrSerialTargetModelToTargetType(chr->targetModel);
+
+            if (chr->targetType != expected) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                               _("Target model '%s' requires target type '%s'"),
+                               virDomainChrSerialTargetModelTypeToString(chr->targetModel),
+                               virDomainChrSerialTargetTypeToString(expected));
+                return -1;
+            }
+            break;
+
+        case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_NONE:
+        case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_LAST:
+            break;
+        }
         break;
 
     case VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE:
-- 
2.14.3


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