1 files changed, 183 insertions, 0 deletions
diff --git a/lib/librte_power/power_kvm_vm.h b/lib/librte_power/power_kvm_vm.h
new file mode 100644
index 00000000..446d6997
--- /dev/null
+++ b/lib/librte_power/power_kvm_vm.h
@@ -0,0 +1,183 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
+ */
+
+#ifndef _POWER_KVM_VM_H
+#define _POWER_KVM_VM_H
+
+/**
+ * @file
+ * RTE Power Management KVM VM
+ */
+
+#include <rte_common.h>
+#include <rte_byteorder.h>
+#include <rte_log.h>
+#include <rte_string_fns.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Initialize power management for a specific lcore.
+ *
+ * @param lcore_id
+ *  lcore id.
+ *
+ * @return
+ *  - 0 on success.
+ *  - Negative on error.
+ */
+int power_kvm_vm_init(unsigned int lcore_id);
+
+/**
+ * Exit power management on a specific lcore.
+ *
+ * @param lcore_id
+ *  lcore id.
+ *
+ * @return
+ *  - 0 on success.
+ *  - Negative on error.
+ */
+int power_kvm_vm_exit(unsigned int lcore_id);
+
+/**
+ * Get the available frequencies of a specific lcore.
+ * It is not currently supported for VM Power Management.
+ *
+ * @param lcore_id
+ *  lcore id.
+ * @param freqs
+ *  The buffer array to save the frequencies.
+ * @param num
+ *  The number of frequencies to get.
+ *
+ * @return
+ *  -ENOTSUP
+ */
+uint32_t power_kvm_vm_freqs(unsigned int lcore_id, uint32_t *freqs,
+		uint32_t num);
+
+/**
+ * Return the current index of available frequencies of a specific lcore.
+ * It is not currently supported for VM Power Management.
+ *
+ * @param lcore_id
+ *  lcore id.
+ *
+ * @return
+ *  -ENOTSUP
+ */
+uint32_t power_kvm_vm_get_freq(unsigned int lcore_id);
+
+/**
+ * Set the new frequency for a specific lcore by indicating the index of
+ * available frequencies.
+ * It is not currently supported for VM Power Management.
+ *
+ * @param lcore_id
+ *  lcore id.
+ * @param index
+ *  The index of available frequencies.
+ *
+ * @return
+ *  -ENOTSUP
+ */
+int power_kvm_vm_set_freq(unsigned int lcore_id, uint32_t index);
+
+/**
+ * Scale up the frequency of a specific lcore. This request is forwarded to the
+ * host monitor.
+ * It should be protected outside of this function for threadsafe.
+ *
+ * @param lcore_id
+ *  lcore id.
+ *
+ * @return
+ *  - 1 on success.
+ *  - Negative on error.
+ */
+int power_kvm_vm_freq_up(unsigned int lcore_id);
+
+/**
+ * Scale down the frequency of a specific lcore according to the available
+ * frequencies.
+ * It should be protected outside of this function for threadsafe.
+ *
+ * @param lcore_id
+ *  lcore id.
+ *
+ * @return
+ *  - 1 on success.
+ *  - Negative on error.
+ */
+int power_kvm_vm_freq_down(unsigned int lcore_id);
+
+/**
+ * Scale up the frequency of a specific lcore to the highest according to the
+ * available frequencies.
+ * It should be protected outside of this function for threadsafe.
+ *
+ * @param lcore_id
+ *  lcore id.
+ *
+ * @return
+ *  - 1 on success.
+ *  - Negative on error.
+ */
+int power_kvm_vm_freq_max(unsigned int lcore_id);
+
+/**
+ * Scale down the frequency of a specific lcore to the lowest according to the
+ * available frequencies.
+ * It should be protected outside of this function for threadsafe.
+ *
+ * @param lcore_id
+ *  lcore id.
+ *
+ * @return
+ *  - 1 on success.
+ *  - Negative on error.
+ */
+int power_kvm_vm_freq_min(unsigned int lcore_id);
+
+/**
+ * It should be protected outside of this function for threadsafe.
+ *
+ * @param lcore_id
+ *  lcore id.
+ *
+ * @return
+ *  -ENOTSUP
+ */
+int power_kvm_vm_turbo_status(unsigned int lcore_id);
+
+/**
+ * It should be protected outside of this function for threadsafe.
+ *
+ * @param lcore_id
+ *  lcore id.
+ *
+ * @return
+ *  - 1 on success.
+ *  - Negative on error.
+ */
+int power_kvm_vm_enable_turbo(unsigned int lcore_id);
+
+/**
+ * It should be protected outside of this function for threadsafe.
+ *
+ * @param lcore_id
+ *  lcore id.
+ *
+ * @return
+ *  - 1 on success.
+ *  - Negative on error.
+ */
+int power_kvm_vm_disable_turbo(unsigned int lcore_id);
+#ifdef __cplusplus
+}
+#endif
+#endif