From 17c8a173b654610795abf3505db26e6a99a98993 Mon Sep 17 00:00:00 2001
From: Michal Privoznik <mprivozn@redhat.com>
Date: Thu, 18 May 2023 10:31:12 +0200
Subject: [PATCH] numa_conf: Deny other memory modes than 'restrictive' if a
 memnode is 'restrictive'

We already do check that if there's <memory mode='restrictive'/>
then all <memnode/> have to be of 'restrictive' mode too. But
what we are missing the reverse: if there is <memnode/> with
'restrictive' mode, then the <memory/> has to be of the same mode
too.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2208946
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
---
 src/conf/numa_conf.c                          | 20 ++++++---
 ...strictive-mode-err-mixed.x86_64-latest.err |  1 +
 ...une-memnode-restrictive-mode-err-mixed.xml | 41 +++++++++++++++++++
 tests/qemuxml2argvtest.c                      |  1 +
 4 files changed, 57 insertions(+), 6 deletions(-)
 create mode 100644 tests/qemuxml2argvdata/numatune-memnode-restrictive-mode-err-mixed.x86_64-latest.err
 create mode 100644 tests/qemuxml2argvdata/numatune-memnode-restrictive-mode-err-mixed.xml

diff --git a/src/conf/numa_conf.c b/src/conf/numa_conf.c
index 6095139385..a616521763 100644
--- a/src/conf/numa_conf.c
+++ b/src/conf/numa_conf.c
@@ -1075,12 +1075,20 @@ virDomainNumaDefValidate(const virDomainNuma *def)
         const virDomainNumaNode *node = &def->mem_nodes[i];
         g_autoptr(virBitmap) levelsSeen = virBitmapNew(0);
 
-        if (virDomainNumatuneNodeSpecified(def, i) &&
-            def->memory.mode == VIR_DOMAIN_NUMATUNE_MEM_RESTRICTIVE &&
-            node->mode != VIR_DOMAIN_NUMATUNE_MEM_RESTRICTIVE) {
-            virReportError(VIR_ERR_XML_ERROR, "%s",
-                           _("'restrictive' mode is required in memnode element when mode is 'restrictive' in memory element"));
-            return -1;
+        if (virDomainNumatuneNodeSpecified(def, i)) {
+            if (def->memory.mode == VIR_DOMAIN_NUMATUNE_MEM_RESTRICTIVE &&
+                node->mode != VIR_DOMAIN_NUMATUNE_MEM_RESTRICTIVE) {
+                virReportError(VIR_ERR_XML_ERROR, "%s",
+                               _("'restrictive' mode is required in memnode element when mode is 'restrictive' in memory element"));
+                return -1;
+            }
+
+            if (node->mode == VIR_DOMAIN_NUMATUNE_MEM_RESTRICTIVE &&
+                def->memory.mode != VIR_DOMAIN_NUMATUNE_MEM_RESTRICTIVE) {
+                virReportError(VIR_ERR_XML_ERROR, "%s",
+                               _("'restrictive' mode is required in memory element when mode is 'restrictive' in memnode element"));
+                return -1;
+            }
         }
 
         for (j = 0; j < node->ncaches; j++) {
diff --git a/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode-err-mixed.x86_64-latest.err b/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode-err-mixed.x86_64-latest.err
new file mode 100644
index 0000000000..88f02ee70e
--- /dev/null
+++ b/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode-err-mixed.x86_64-latest.err
@@ -0,0 +1 @@
+XML error: 'restrictive' mode is required in memory element when mode is 'restrictive' in memnode element
diff --git a/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode-err-mixed.xml b/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode-err-mixed.xml
new file mode 100644
index 0000000000..0304dec8ef
--- /dev/null
+++ b/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode-err-mixed.xml
@@ -0,0 +1,41 @@
+<domain type='qemu'>
+  <name>QEMUGuest</name>
+  <uuid>9f4b6512-e73a-4a25-93e8-5307802821ce</uuid>
+  <memory unit='KiB'>24682468</memory>
+  <currentMemory unit='KiB'>24682468</currentMemory>
+  <vcpu placement='static'>32</vcpu>
+  <numatune>
+    <memory mode='interleave' nodeset='0-3'/>
+    <memnode cellid='0' mode='strict' nodeset='3'/>
+    <memnode cellid='2' mode='restrictive' nodeset='1-2'/>
+  </numatune>
+  <os>
+    <type arch='x86_64' machine='pc'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <cpu mode='custom' match='exact' check='none'>
+    <model fallback='forbid'>qemu64</model>
+    <numa>
+      <cell id='0' cpus='0' memory='20002' unit='KiB'/>
+      <cell id='1' cpus='1-27,29' memory='660066' unit='KiB'/>
+      <cell id='2' cpus='28,30-31' memory='24002400' unit='KiB'/>
+    </numa>
+  </cpu>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-x86_64</emulator>
+    <controller type='usb' index='0' model='piix3-uhci'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
+    </controller>
+    <controller type='pci' index='0' model='pci-root'/>
+    <input type='mouse' bus='ps2'/>
+    <input type='keyboard' bus='ps2'/>
+    <audio id='1' type='none'/>
+    <memballoon model='virtio'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+    </memballoon>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 93d5ae018f..2cc9bd074a 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1868,6 +1868,7 @@ mymain(void)
     DO_TEST_CAPS_LATEST("numatune-memnode");
     DO_TEST_PARSE_ERROR_NOCAPS("numatune-memnode-invalid-mode");
     DO_TEST_CAPS_LATEST("numatune-memnode-restrictive-mode");
+    DO_TEST_CAPS_LATEST_PARSE_ERROR("numatune-memnode-restrictive-mode-err-mixed");
     DO_TEST_CAPS_LATEST("numatune-system-memory");
 
     DO_TEST_NOCAPS("numatune-memnode-no-memory");