[PATCH v1 01/26] qemu_command.c: move PSeries features validation to qemu_domain.c

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Introduce a new function called qemuDomainDefValidatePSeriesFeature()
that will center all the PSeries validation done in qemu_command.c.
qemuDomainDefValidatePSeriesFeature() is then called during domain
define time, in qemuDomainDefValidateFeatures().

qemuxml2argvtest.c is also changed to include all the caps that now
are being validated in define time.

Signed-off-by: Daniel Henrique Barboza <danielhb413@xxxxxxxxx>
---
 src/qemu/qemu_command.c  |  68 +---------------------
 src/qemu/qemu_domain.c   | 118 ++++++++++++++++++++++++++++++++++++---
 tests/qemuxml2argvtest.c |  43 +++++++++++++-
 3 files changed, 152 insertions(+), 77 deletions(-)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 49a0dad8d4..12a9d47f44 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -7235,33 +7235,11 @@ qemuBuildMachineCommandLine(virCommandPtr cmd,
     if (def->features[VIR_DOMAIN_FEATURE_HPT] == VIR_TRISTATE_SWITCH_ON) {
 
         if (def->hpt_resizing != VIR_DOMAIN_HPT_RESIZING_NONE) {
-            const char *str;
-
-            if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_RESIZE_HPT)) {
-                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                               _("HTP resizing is not supported by this "
-                                 "QEMU binary"));
-                return -1;
-            }
-
-            str = virDomainHPTResizingTypeToString(def->hpt_resizing);
-            if (!str) {
-                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                               _("Invalid setting for HPT resizing"));
-                return -1;
-            }
-
-            virBufferAsprintf(&buf, ",resize-hpt=%s", str);
+            virBufferAsprintf(&buf, ",resize-hpt=%s",
+                              virDomainHPTResizingTypeToString(def->hpt_resizing));
         }
 
         if (def->hpt_maxpagesize > 0) {
-            if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_CAP_HPT_MAX_PAGE_SIZE)) {
-                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                               _("Configuring the page size for HPT guests "
-                                 "is not supported by this QEMU binary"));
-                return -1;
-            }
-
             virBufferAsprintf(&buf, ",cap-hpt-max-page-size=%lluk",
                               def->hpt_maxpagesize);
         }
@@ -7269,61 +7247,19 @@ qemuBuildMachineCommandLine(virCommandPtr cmd,
 
     if (def->features[VIR_DOMAIN_FEATURE_HTM] != VIR_TRISTATE_SWITCH_ABSENT) {
         const char *str;
-
-        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_CAP_HTM)) {
-            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                           _("HTM configuration is not supported by this "
-                             "QEMU binary"));
-            return -1;
-        }
-
         str = virTristateSwitchTypeToString(def->features[VIR_DOMAIN_FEATURE_HTM]);
-        if (!str) {
-            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                           _("Invalid setting for HTM state"));
-            return -1;
-        }
-
         virBufferAsprintf(&buf, ",cap-htm=%s", str);
     }
 
     if (def->features[VIR_DOMAIN_FEATURE_NESTED_HV] != VIR_TRISTATE_SWITCH_ABSENT) {
         const char *str;
-
-        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_CAP_NESTED_HV)) {
-            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                           _("Nested HV configuration is not supported by "
-                             "this QEMU binary"));
-            return -1;
-        }
-
         str = virTristateSwitchTypeToString(def->features[VIR_DOMAIN_FEATURE_NESTED_HV]);
-        if (!str) {
-            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                           _("Invalid setting for nested HV state"));
-            return -1;
-        }
-
         virBufferAsprintf(&buf, ",cap-nested-hv=%s", str);
     }
 
     if (def->features[VIR_DOMAIN_FEATURE_CCF_ASSIST] != VIR_TRISTATE_SWITCH_ABSENT) {
         const char *str;
-
-        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_CAP_CCF_ASSIST)) {
-            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                           _("ccf-assist configuration is not supported by this "
-                             "QEMU binary"));
-            return -1;
-        }
-
         str = virTristateSwitchTypeToString(def->features[VIR_DOMAIN_FEATURE_CCF_ASSIST]);
-        if (!str) {
-            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                           _("Invalid setting for ccf-assist state"));
-            return -1;
-        }
-
         virBufferAsprintf(&buf, ",cap-ccf-assist=%s", str);
     }
 
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 6f53e17b6a..e25b439a39 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -4812,6 +4812,114 @@ qemuDomainDefGetVcpuHotplugGranularity(const virDomainDef *def)
 #define QEMU_MAX_VCPUS_WITHOUT_EIM 255
 
 
+static int
+qemuDomainDefValidatePSeriesFeature(const virDomainDef *def,
+                                    virQEMUCapsPtr qemuCaps,
+                                    int feature)
+{
+    const char *str;
+
+    if (def->features[feature] != VIR_TRISTATE_SWITCH_ABSENT &&
+        !qemuDomainIsPSeries(def)) {
+        virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                       _("The '%s' feature is not supported for "
+                         "architecture '%s' or machine type '%s'"),
+                       virDomainFeatureTypeToString(feature),
+                       virArchToString(def->os.arch),
+                       def->os.machine);
+        return -1;
+    }
+
+    if (def->features[feature] == VIR_TRISTATE_SWITCH_ABSENT)
+        return 0;
+
+    switch (feature) {
+    case VIR_DOMAIN_FEATURE_HPT:
+        if (def->features[feature] != VIR_TRISTATE_SWITCH_ON)
+            break;
+
+        if (def->hpt_resizing != VIR_DOMAIN_HPT_RESIZING_NONE) {
+            if (!virQEMUCapsGet(qemuCaps,
+                                QEMU_CAPS_MACHINE_PSERIES_RESIZE_HPT)) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                               _("HTP resizing is not supported by this "
+                                "QEMU binary"));
+                return -1;
+            }
+
+            str = virDomainHPTResizingTypeToString(def->hpt_resizing);
+            if (!str) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                               _("Invalid setting for HPT resizing"));
+                return -1;
+            }
+        }
+
+        if (def->hpt_maxpagesize > 0 &&
+            !virQEMUCapsGet(qemuCaps,
+                            QEMU_CAPS_MACHINE_PSERIES_CAP_HPT_MAX_PAGE_SIZE)) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                           _("Configuring the page size for HPT guests "
+                             "is not supported by this QEMU binary"));
+            return -1;
+        }
+        break;
+
+    case VIR_DOMAIN_FEATURE_HTM:
+        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_CAP_HTM)) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                           _("HTM configuration is not supported by this "
+                             "QEMU binary"));
+            return -1;
+        }
+
+        str = virTristateSwitchTypeToString(def->features[feature]);
+        if (!str) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                           _("Invalid setting for HTM state"));
+            return -1;
+        }
+
+        break;
+
+    case VIR_DOMAIN_FEATURE_NESTED_HV:
+        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_CAP_NESTED_HV)) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                           _("Nested HV configuration is not supported by "
+                             "this QEMU binary"));
+            return -1;
+        }
+
+        str = virTristateSwitchTypeToString(def->features[feature]);
+        if (!str) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                           _("Invalid setting for nested HV state"));
+            return -1;
+        }
+
+        break;
+
+    case VIR_DOMAIN_FEATURE_CCF_ASSIST:
+        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_CAP_CCF_ASSIST)) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                           _("ccf-assist configuration is not supported by "
+                           "this QEMU binary"));
+            return -1;
+        }
+
+        str = virTristateSwitchTypeToString(def->features[feature]);
+        if (!str) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                           _("Invalid setting for ccf-assist state"));
+            return -1;
+        }
+
+        break;
+    }
+
+    return 0;
+}
+
 static int
 qemuDomainDefValidateFeatures(const virDomainDef *def,
                               virQEMUCapsPtr qemuCaps)
@@ -4839,16 +4947,8 @@ qemuDomainDefValidateFeatures(const virDomainDef *def,
         case VIR_DOMAIN_FEATURE_HTM:
         case VIR_DOMAIN_FEATURE_NESTED_HV:
         case VIR_DOMAIN_FEATURE_CCF_ASSIST:
-            if (def->features[i] != VIR_TRISTATE_SWITCH_ABSENT &&
-                !qemuDomainIsPSeries(def)) {
-                virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
-                               _("The '%s' feature is not supported for "
-                                 "architecture '%s' or machine type '%s'"),
-                               featureName,
-                               virArchToString(def->os.arch),
-                               def->os.machine);
+            if (qemuDomainDefValidatePSeriesFeature(def, qemuCaps, i) < 0)
                 return -1;
-            }
             break;
 
         case VIR_DOMAIN_FEATURE_GIC:
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index ba4a92ec0a..cc1a82488e 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1934,8 +1934,47 @@ mymain(void)
             QEMU_CAPS_MACHINE_PSERIES_CAP_NESTED_HV,
             QEMU_CAPS_MACHINE_PSERIES_CAP_CCF_ASSIST,
             QEMU_CAPS_MACHINE_PSERIES_RESIZE_HPT);
-    DO_TEST_FAILURE("pseries-features",
-                    QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE);
+
+    /* parse error: no QEMU_CAPS_MACHINE_PSERIES_RESIZE_HPT */
+    DO_TEST_PARSE_ERROR("pseries-features",
+                        QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_HPT_MAX_PAGE_SIZE,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_HTM,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_NESTED_HV,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_CCF_ASSIST);
+
+    /* parse error: no QEMU_CAPS_MACHINE_PSERIES_CAP_HPT_MAX_PAGE_SIZE */
+    DO_TEST_PARSE_ERROR("pseries-features",
+                        QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_HTM,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_NESTED_HV,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_CCF_ASSIST,
+                        QEMU_CAPS_MACHINE_PSERIES_RESIZE_HPT);
+
+    /* parse error: no QEMU_CAPS_MACHINE_PSERIES_CAP_HTM */
+    DO_TEST_PARSE_ERROR("pseries-features",
+                        QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_HPT_MAX_PAGE_SIZE,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_NESTED_HV,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_CCF_ASSIST,
+                        QEMU_CAPS_MACHINE_PSERIES_RESIZE_HPT);
+
+    /* parse error: no QEMU_CAPS_MACHINE_PSERIES_CAP_NESTED_HV */
+    DO_TEST_PARSE_ERROR("pseries-features",
+                        QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_HPT_MAX_PAGE_SIZE,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_HTM,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_CCF_ASSIST,
+                        QEMU_CAPS_MACHINE_PSERIES_RESIZE_HPT);
+
+    /* parse error: no QEMU_CAPS_MACHINE_PSERIES_CAP_CCF_ASSIST */
+    DO_TEST_PARSE_ERROR("pseries-features",
+                        QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_HPT_MAX_PAGE_SIZE,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_HTM,
+                        QEMU_CAPS_MACHINE_PSERIES_CAP_NESTED_HV,
+                        QEMU_CAPS_MACHINE_PSERIES_RESIZE_HPT);
+
     DO_TEST_PARSE_ERROR("pseries-features-invalid-machine", NONE);
 
     DO_TEST("pseries-serial-native",
-- 
2.23.0


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