harvester · tserong · Jul 21, 2025
diff --git a/pkg/harvester/config/doc-links.js b/pkg/harvester/config/doc-links.js
@@ -7,4 +7,5 @@ export const DOC = {
   UPGRADE_CONFIG_URL:        `/advanced/index#upgrade-config`,
   STORAGE_NETWORK_EXAMPLE:   `/advanced/storagenetwork#configuration-example`,
   SUPPORT_BUNDLE_NAMESPACES: `/advanced/index/#support-bundle-namespaces`,
+  TRANSPARENT_HUGEPAGES:     `https://docs.kernel.org/admin-guide/mm/transhuge.html`,
 };
diff --git a/pkg/harvester/detail/harvesterhci.io.host/HarvesterHugepages.vue b/pkg/harvester/detail/harvesterhci.io.host/HarvesterHugepages.vue
@@ -0,0 +1,119 @@
+<script>
+import LabelValue from '@shell/components/LabelValue';
+import { HCI } from '../../types';
+import { DOC } from '../../config/doc-links';
+
+export default {
+  name:       'HarvesterHugepages',
+  components: { LabelValue },
+
+  props: {
+    node: {
+      type:     Object,
+      required: true,
+    },
+  },
+
+  computed: {
+    docsTransparentHugepagesLink() {
+      return DOC.TRANSPARENT_HUGEPAGES;
+    },
+  },
+
+  async fetch() {
+    const inStore = this.$store.getters['currentProduct'].inStore;
+
+    const hash = await this.$store.dispatch(`${ inStore }/findAll`, { type: HCI.HUGEPAGES });
+
+    this.hugepages = hash.find((node) => {
+      return node.id === this.node.id;
+    });
+  },
+
+  data() {
+    return { hugepages: {} };
+  },
+};
+</script>
+
+<template>
+  <div>
+    <template v-if="hugepages.status">
+      <h2>{{ t('harvester.host.hugepages.meminfo') }}</h2>
+
+      <div class="row mb-20">
+        <div class="col span-6">
+          <LabelValue
+            :name="t('harvester.host.hugepages.status.anon')"
+            :value="hugepages.status.meminfo.anonHugePages"
+          />
+        </div>
+        <div class="col span-6">
+          <LabelValue
+            :name="t('harvester.host.hugepages.status.size')"
+            :value="hugepages.status.meminfo.hugepageSize"
+          />
+        </div>
+      </div>
+
+      <div class="row mb-20">
+        <div class="col span-3">
+          <LabelValue
+            :name="t('harvester.host.hugepages.status.total')"
+            :value="hugepages.status.meminfo.hugePagesTotal"
+          />
+        </div>
+        <div class="col span-3">
+          <LabelValue
+            :name="t('harvester.host.hugepages.status.free')"
+            :value="hugepages.status.meminfo.hugePagesFree"
+          />
+        </div>
+        <div class="col span-3">
+          <LabelValue
+            :name="t('harvester.host.hugepages.status.rsvd')"
+            :value="hugepages.status.meminfo.hugePagesRsvd"
+          />
+        </div>
+        <div class="col span-3">
+          <LabelValue
+            :name="t('harvester.host.hugepages.status.surp')"
+            :value="hugepages.status.meminfo.hugePagesSurp"
+          />
+        </div>
+      </div>
+
+      <div>
+        <hr class="divider" />
+        <h3>
+          <t
+            k="harvester.host.hugepages.transparent.title"
+            :raw="true"
+            :url="docsTransparentHugepagesLink"
+          />
+        </h3>
+
+        <div class="row mb-20">
+          <div class="col span-4">
+            <LabelValue
+              :name="t('harvester.host.hugepages.transparent.enabled')"
+              :value="hugepages.spec.transparent.enabled"
+            />
+          </div>
+          <div class="col span-4">
+            <LabelValue
+              :name="t('harvester.host.hugepages.transparent.shmemEnabled')"
+              :value="hugepages.spec.transparent.shmemEnabled"
+            />
+          </div>
+          <div class="col span-4">
+            <LabelValue
+              :name="t('harvester.host.hugepages.transparent.defrag')"
+              :value="hugepages.spec.transparent.defrag"
+            />
+          </div>
+        </div>
+      </div>
+    </template>
+  </div>
+</template>
diff --git a/pkg/harvester/detail/harvesterhci.io.host/index.vue b/pkg/harvester/detail/harvesterhci.io.host/index.vue
@@ -27,6 +27,7 @@ import Instance from './VirtualMachineInstance';
 import Disk from './HarvesterHostDisk';
 import VlanStatus from './VlanStatus';
 import HarvesterKsmtuned from './HarvesterKsmtuned.vue';
+import HarvesterHugepages from './HarvesterHugepages.vue';
 import HarvesterSeeder from './HarvesterSeeder';
 
 const LONGHORN_SYSTEM = 'longhorn-system';
@@ -46,6 +47,7 @@ export default {
     VlanStatus,
     LabelValue,
     HarvesterKsmtuned,
+    HarvesterHugepages,
     Loading,
     SortableTable,
     HarvesterSeeder,
@@ -209,6 +211,12 @@ export default {
       return !!this.$store.getters[`${ inStore }/schemaFor`](HCI.KSTUNED);
     },
 
+    hasHugepagesSchema() {
+      const inStore = this.$store.getters['currentProduct'].inStore;
+
+      return !!this.$store.getters[`${ inStore }/schemaFor`](HCI.HUGEPAGES);
+    },
+
     hasBlockDevicesSchema() {
       return !!this.$store.getters['harvester/schemaFor'](HCI.BLOCK_DEVICE);
     },
@@ -468,6 +476,16 @@ export default {
         />
       </Tab>
 
+      <Tab
+        v-if="hasHugepagesSchema"
+        name="hugepages"
+        :weight="0"
+        :show-header="false"
+        :label="t('harvester.host.tabs.hugepages')"
+      >
+        <HarvesterHugepages :node="value" />
+      </Tab>
+
       <Tab
         v-if="seederEnabled"
         name="seeder"

diff --git a/pkg/harvester/edit/harvesterhci.io.host/HarvesterHugepages.vue b/pkg/harvester/edit/harvesterhci.io.host/HarvesterHugepages.vue
@@ -0,0 +1,157 @@
+<script>
+import LabeledSelect from '@shell/components/form/LabeledSelect.vue';
+import { HCI } from '../../types';
+import { DOC } from '../../config/doc-links';
+
+export const hugepagesTHPEnabledMode = [{
+  label: 'Always',
+  value: 'always',
+}, {
+  label: 'Madvise',
+  value: 'madvise',
+}, {
+  label: 'Never',
+  value: 'never',
+}];
+
+export const hugepagesTHPShmemEnabledMode = [{
+  label: 'Always',
+  value: 'always',
+}, {
+  label: 'Within Size',
+  value: 'within_size',
+}, {
+  label: 'Advise',
+  value: 'advise',
+}, {
+  label: 'Never',
+  value: 'never',
+}, {
+  label: 'Deny',
+  value: 'deny',
+}, {
+  label: 'Force',
+  value: 'force',
+}];
+
+export const hugepagesTHPDefragMode = [{
+  label: 'Always',
+  value: 'always',
+}, {
+  label: 'Defer',
+  value: 'defer',
+}, {
+  label: 'Defer+Madvise',
+  value: 'defer+madvise',
+}, {
+  label: 'Madvise',
+  value: 'madvise',
+}, {
+  label: 'Never',
+  value: 'never'
+}];
+
+export default {
+  name:       'HarvesterHugepages',
+  components: { LabeledSelect },
+
+  props: {
+    node: {
+      type:     Object,
+      required: true,
+    },
+
+    registerBeforeHook: {
+      type:     Function,
+      required: true,
+    },
+  },
+
+  computed: {
+    docsTransparentHugepagesLink() {
+      return DOC.TRANSPARENT_HUGEPAGES;
+    },
+  },
+
+  methods: {
+    async saveHugepages() {
+      this.hugepages['spec'] = this.spec;
+
+      await this.hugepages.save().catch((reason) => {
+        if (reason?.type === 'error') {
+          this.$store.dispatch('growl/error', {
+            title:   this.t('harvester.notification.title.error'),
+            message: reason?.message,
+          }, { root: true });
+
+          return Promise.reject(new Error('saveHugepages error'));
+        }
+      });
+    },
+  },
+
+  async fetch() {
+    const inStore = this.$store.getters['currentProduct'].inStore;
+
+    const hash = await this.$store.dispatch(`${ inStore }/findAll`, { type: HCI.HUGEPAGES });
+
+    this.hugepages = hash.find((node) => {
+      return node.id === this.node.id;
+    });
+    this.spec = this.hugepages.spec;
+  },
+
+  data() {
+    return {
+      hugepages: {},
+      spec:      { transparent: {} },
+      hugepagesTHPEnabledMode,
+      hugepagesTHPShmemEnabledMode,
+      hugepagesTHPDefragMode,
+    };
+  },
+
+  created() {
+    this.registerBeforeHook(this.saveHugepages, 'saveHugepages');
+  },
+};
+</script>
+
+<template>
+  <div>
+    <div>
+      <hr class="divider" />
+      <h3>
+        <t
+          k="harvester.host.hugepages.transparent.title"
+          :raw="true"
+          :url="docsTransparentHugepagesLink"
+        />
+      </h3>
+
+      <div class="row mb-20">
+        <div class="col span-4">
+          <LabeledSelect
+            v-model:value="spec.transparent.enabled"
+            :label="t('harvester.host.hugepages.transparent.enabled')"
+            :options="hugepagesTHPEnabledMode"
+          />
+        </div>
+        <div class="col span-4">
+          <LabeledSelect
+            v-model:value="spec.transparent.shmemEnabled"
+            :label="t('harvester.host.hugepages.transparent.shmemEnabled')"
+            :options="hugepagesTHPShmemEnabledMode"
+          />
+        </div>
+        <div class="col span-4">
+          <LabeledSelect
+            v-model:value="spec.transparent.defrag"
+            :label="t('harvester.host.hugepages.transparent.defrag')"
+            :options="hugepagesTHPDefragMode"
+          />
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
diff --git a/pkg/harvester/edit/harvesterhci.io.host/index.vue b/pkg/harvester/edit/harvesterhci.io.host/index.vue
@@ -28,6 +28,7 @@ import { HCI } from '../../types';
 import HarvesterDisk from './HarvesterDisk';
 import HarvesterSeeder from './HarvesterSeeder';
 import HarvesterKsmtuned from './HarvesterKsmtuned';
+import HarvesterHugepages from './HarvesterHugepages';
 import Tags from '../../components/DiskTags';
 import { LVM_DRIVER } from '../../models/harvester/storage.k8s.io.storageclass';
 import isEqual from 'lodash/isEqual';
@@ -50,6 +51,7 @@ export default {
     ArrayListGrouped,
     HarvesterDisk,
     HarvesterKsmtuned,
+    HarvesterHugepages,
     ButtonDropdown,
     KeyValue,
     Banner,
@@ -225,6 +227,12 @@ export default {
       return !!this.$store.getters[`${ inStore }/schemaFor`](HCI.KSTUNED);
     },
 
+    hasHugepagesSchema() {
+      const inStore = this.$store.getters['currentProduct'].inStore;
+
+      return !!this.$store.getters[`${ inStore }/schemaFor`](HCI.HUGEPAGES);
+    },
+
     hasBlockDevicesSchema() {
       const inStore = this.$store.getters['currentProduct'].inStore;
 
@@ -648,6 +656,17 @@ export default {
             </template>
           </ArrayListGrouped>
         </Tab>
+        <Tab
+          v-if="hasHugepagesSchema"
+          name="Hugepages"
+          :weight="70"
+          :label="t('harvester.host.tabs.hugepages')"
+        >
+          <HarvesterHugepages
+            :node="value"
+            :register-before-hook="registerBeforeHook"
+          />
+        </Tab>
         <Tab
           v-if="hasKsmtunedSchema"
           name="Ksmtuned"