diff --git a/kernel/drivers/opensbi/extensions/base.cpp b/kernel/drivers/opensbi/extensions/base.cpp
new file mode 100644
index 0000000..273984a
--- /dev/null
+++ b/kernel/drivers/opensbi/extensions/base.cpp
@@ -0,0 +1,67 @@
+#include "opensbi/extensions/base.h"
+
+namespace drivers {
+namespace opensbi::base {
+
+    namespace {
+        enum class ExtensionId {
+            BASE = 0x10
+        };
+
+        enum class FunctionId {
+            GET_SPEC_VERSION,
+            GET_IMPL_ID,
+            GET_IMPL_VERSION,
+            PROBE_EXTENSION,
+            GET_MVENDORID,
+            GET_MARCHID,
+            GET_MIMPID
+        };
+    }
+
+    SbiRet get_spec_version() {
+        return ecall(
+            static_cast<sbiword_t>(ExtensionId::BASE),
+            static_cast<sbiword_t>(FunctionId::GET_SPEC_VERSION));
+    }
+
+    SbiRet get_impl_id() {
+        return ecall(
+            static_cast<sbiword_t>(ExtensionId::BASE),
+            static_cast<sbiword_t>(FunctionId::GET_IMPL_ID));
+    }
+
+    SbiRet get_impl_version() {
+        return ecall(
+            static_cast<sbiword_t>(ExtensionId::BASE),
+            static_cast<sbiword_t>(FunctionId::GET_IMPL_VERSION));
+    }
+
+    SbiRet probe_extension(long extension_id) {
+        return ecall(
+            static_cast<sbiword_t>(ExtensionId::BASE),
+            static_cast<sbiword_t>(FunctionId::PROBE_EXTENSION),
+            extension_id);
+    }
+
+    SbiRet get_mvendor_id() {
+        return ecall(
+            static_cast<sbiword_t>(ExtensionId::BASE),
+            static_cast<sbiword_t>(FunctionId::GET_MVENDORID));
+    }
+
+    SbiRet get_march_id() {
+        return ecall(
+            static_cast<sbiword_t>(ExtensionId::BASE),
+            static_cast<sbiword_t>(FunctionId::GET_MARCHID));
+    }
+
+    SbiRet get_mimp_id() {
+        return ecall(
+            static_cast<sbiword_t>(ExtensionId::BASE),
+            static_cast<sbiword_t>(FunctionId::GET_MIMPID));
+    }
+
+}  // End namespace opensbi::base
+}  // End namespace drivers
+
diff --git a/kernel/drivers/opensbi/include/opensbi/extensions/base.h b/kernel/drivers/opensbi/include/opensbi/extensions/base.h
new file mode 100644
index 0000000..2e4fd2b
--- /dev/null
+++ b/kernel/drivers/opensbi/include/opensbi/extensions/base.h
@@ -0,0 +1,32 @@
+#pragma once
+
+#include "opensbi/opensbi.h"
+
+namespace drivers {
+namespace opensbi::base {
+
+    enum class ImplId {
+        BBL,
+        OPENSBI,
+        XVISOR,
+        KVM,
+        RUSTSBI,
+        DIOSIX
+    };
+
+    SbiRet get_spec_version();
+
+    SbiRet get_impl_id();
+
+    SbiRet get_impl_version();
+
+    SbiRet probe_extension(long extension_id);
+
+    SbiRet get_mvendor_id();
+
+    SbiRet get_march_id();
+
+    SbiRet get_mimp_id();
+
+}  // End namespace opensbi::base
+}  // End namespace drivers