From 138499f88665110e273f9019237bc283e8a1d2bf Mon Sep 17 00:00:00 2001
From: Yuanyuan Zhao <yuanyuan.zhao@linux.intel.com>
Date: Wed, 31 Aug 2022 16:36:45 +0800
Subject: [PATCH] config_tools: add own_pcpu widget

Add "exclusively owns physical CPUs" checkbox to pre-launched VMs
and post-launched VMs. RTVM will not display this checkbox.
If this checkbox is set, the VM will use all the pCPUs assigned to
it alone.

Tracked-On: #8253
Signed-off-by: Yuanyuan Zhao <yuanyuan.zhao@linux.intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
---
 .../ConfigForm/CustomWidget/cpu_affinity.vue  | 30 +++++++++++++++++++
 .../schema/checks/cpu_assignment.xsd          |  7 +++++
 misc/config_tools/schema/config.xsd           |  5 ++++
 3 files changed, 42 insertions(+)

diff --git a/misc/config_tools/configurator/packages/configurator/src/pages/Config/ConfigForm/CustomWidget/cpu_affinity.vue b/misc/config_tools/configurator/packages/configurator/src/pages/Config/ConfigForm/CustomWidget/cpu_affinity.vue
index 034d3c7f4..75939d193 100644
--- a/misc/config_tools/configurator/packages/configurator/src/pages/Config/ConfigForm/CustomWidget/cpu_affinity.vue
+++ b/misc/config_tools/configurator/packages/configurator/src/pages/Config/ConfigForm/CustomWidget/cpu_affinity.vue
@@ -3,6 +3,26 @@
     <b>{{ uiOptions.title }}</b>
     <div class="p-4">
       <div v-if="defaultVal.pcpu && defaultVal.pcpu.length>0">
+        <b-row v-if="is_std_vm">
+          <label>
+            <n-popover trigger="hover" placement="top-start" style="width: 500px">
+              <template #trigger>
+                <IconInfo/>
+              </template>
+              <span> Enable a VM exclusively owns the physical CPUs assigned to it. </span>
+            </n-popover>
+          Exclusively owns physical CPUs: </label>
+          <b-col>own_pcpu</b-col>
+          <b-col>
+            <b-form-checkbox v-model="pcpu_owned" :value="'y'" :uncheckedValue="'n'"
+              @click="click_own_pcpu"
+            >
+            </b-form-checkbox>
+          </b-col>
+          <b-col></b-col>
+          <b-col></b-col>
+          <b-col></b-col>
+        </b-row>
         <b-row>
           <b-col></b-col>
           <b-col></b-col>
@@ -119,9 +139,15 @@ export default {
     isRTVM() {
       return vueUtils.getPathVal(this.rootFormData, 'vm_type') === 'RTVM'
     },
+    is_std_vm() {
+      return vueUtils.getPathVal(this.rootFormData, 'vm_type') === 'STANDARD_VM'
+    },
     pcpuid_enum() {
       return window.getCurrentFormSchemaData().BasicConfigType.definitions.CPUAffinityConfiguration.properties.pcpu_id
     },
+    pcpu_owned() {
+      return vueUtils.getPathVal(this.rootFormData, 'own_pcpu')
+    },
     uiOptions() {
       return formUtils.getUiOptions({
         schema: this.schema,
@@ -151,6 +177,10 @@ export default {
     addPCPU(index) {
       this.defaultVal.pcpu.splice(index + 1, 0, {pcpu_id: null, real_time_vcpu: "n"})
     },
+    click_own_pcpu() {
+      let newValue = this.pcpu_owned === 'y' ? 'n' : 'y';
+      vueUtils.setPathVal(this.rootFormData, 'own_pcpu', newValue)
+    },
     removePCPU(index) {
       if (this.defaultVal.pcpu.length === 1) {
         // prevent delete for the last one
diff --git a/misc/config_tools/schema/checks/cpu_assignment.xsd b/misc/config_tools/schema/checks/cpu_assignment.xsd
index b08901100..0629a9cd2 100644
--- a/misc/config_tools/schema/checks/cpu_assignment.xsd
+++ b/misc/config_tools/schema/checks/cpu_assignment.xsd
@@ -25,6 +25,13 @@
     </xs:annotation>
   </xs:assert>
 
+  <xs:assert test="every $pcpu in /acrn-config/vm[own_pcpu = 'y']//cpu_affinity//pcpu_id satisfies
+                   count(/acrn-config/vm[@id != $pcpu/ancestor::vm//companion_vmid]//cpu_affinity[.//pcpu_id = $pcpu]) &lt;= 1">
+    <xs:annotation acrn:severity="error" acrn:report-on="//vm//cpu_affinity[.//pcpu_id = $pcpu]">
+      <xs:documentation>Physical CPU {$pcpu} is assigned to a VM "[{$pcpu/ancestor::vm/name}]" exclusively owns the physical CPUs assigned to it. Look for, and probably remove, any affinity assignments to CPU {$pcpu} in these VMs {//vm[cpu_affinity//pcpu_id = $pcpu and name != $pcpu/ancestor::vm/name]/name} settings.</xs:documentation>
+    </xs:annotation>
+  </xs:assert>
+
   <xs:assert test="every $vm in /acrn-config/vm[load_order != 'SERVICE_VM'] satisfies
                    count($vm/cpu_affinity/pcpu[pcpu_id != '']) > 0">
   <xs:annotation acrn:severity="error" acrn:report-on="$vm/cpu_affinity">
diff --git a/misc/config_tools/schema/config.xsd b/misc/config_tools/schema/config.xsd
index 974af8bd9..19c7dfd51 100644
--- a/misc/config_tools/schema/config.xsd
+++ b/misc/config_tools/schema/config.xsd
@@ -370,6 +370,11 @@ These settings can only be changed at build time.</xs:documentation>
       <xs:annotation acrn:title="" acrn:views="basic, advanced" acrn:applicable-vms="pre-launched, post-launched">
       </xs:annotation>
     </xs:element>
+    <xs:element name="own_pcpu" type="Boolean" default="n">
+      <xs:annotation acrn:title="Exclusively owns physical CPUs" acrn:views="">
+        <xs:documentation>Enable a VM exclusively owns the physical CPUs assigned to it.</xs:documentation>
+      </xs:annotation>
+    </xs:element>
     <xs:element name="cpu_affinity" type="CPUAffinityConfigurations" minOccurs="0">
       <xs:annotation acrn:title="Physical CPU affinity" acrn:views="basic" acrn:applicable-vms="pre-launched, post-launched">
         <xs:documentation>Select a subset of physical CPUs that this VM can use. More than one can be selected.</xs:documentation>