From 1ceff7ba72196b2de29266a29848d6eeab62f70e Mon Sep 17 00:00:00 2001
From: andersendsa <199610634+andersendsa@users.noreply.github.com>
Date: Thu, 25 Jun 2026 15:28:00 +0000
Subject: [PATCH] Allow CPU_RUNTIME_CACHE_CAPACITY in plugin_config

OpenVINO's `CPU_RUNTIME_CACHE_CAPACITY` is an internal parameter that isn't returned by `get_property(pluginName, ov::supported_properties)`. This caused OVMS validation to fail when users attempted to configure it via `plugin_config`.
This commit whitelists `CPU_RUNTIME_CACHE_CAPACITY` during validation (similar to `ENABLE_MMAP`) so that the configuration is passed down to OpenVINO Runtime, where it is supported.
---
 src/ov_utils.cpp           |  3 ++-
 src/test/ov_utils_test.cpp | 10 ++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/ov_utils.cpp b/src/ov_utils.cpp
index 92ac74a168..282e895aee 100644
--- a/src/ov_utils.cpp
+++ b/src/ov_utils.cpp
@@ -134,7 +134,8 @@ Status validatePluginConfiguration(const plugin_config_t& pluginConfig, const st
         insertSupportedKeys(pluginSupportedConfigKeys, targetDevice, ieCore);
     }
 
-    pluginSupportedConfigKeys.insert("ENABLE_MMAP");  // WA: always supported
+    pluginSupportedConfigKeys.insert("ENABLE_MMAP");                 // WA: always supported
+    pluginSupportedConfigKeys.insert("CPU_RUNTIME_CACHE_CAPACITY");  // WA: always supported
 
     for (auto& config : pluginConfig) {
         if (std::find(pluginSupportedConfigKeys.begin(), pluginSupportedConfigKeys.end(), config.first) == pluginSupportedConfigKeys.end()) {
diff --git a/src/test/ov_utils_test.cpp b/src/test/ov_utils_test.cpp
index 579426b99d..d683a2f5ea 100644
--- a/src/test/ov_utils_test.cpp
+++ b/src/test/ov_utils_test.cpp
@@ -240,3 +240,13 @@ TEST(OVUtils, ValidatePluginConfigurationAllowEnableMmap) {
     auto model = ieCore.read_model(std::filesystem::current_path().u8string() + "/src/test/dummy/1/dummy.xml", {}, pluginConfig);
     auto compiledModel = ieCore.compile_model(model, "CPU", pluginConfig);
 }
+
+TEST(OVUtils, ValidatePluginConfigurationAllowCPURuntimeCacheCapacity) {
+    ov::Core ieCore;
+    ovms::ModelConfig config;
+    config.setTargetDevice("CPU");
+    config.setPluginConfig({{"CPU_RUNTIME_CACHE_CAPACITY", "0"}});
+    ovms::plugin_config_t pluginConfig = ovms::ModelInstance::prepareDefaultPluginConfig(config);
+    auto status = ovms::validatePluginConfiguration(pluginConfig, "CPU", ieCore);
+    EXPECT_TRUE(status.ok());
+}