#include <stdint.h>
#include <stddef.h>
+#ifdef RTE_EXEC_ENV_LINUXAPP
+#include <exec-env/rte_dom0_common.h>
+#endif
+
#ifdef __cplusplus
extern "C" {
#endif
#define __rte_cache_aligned __attribute__((__aligned__(CACHE_LINE_SIZE)))
typedef uint64_t phys_addr_t; /**< Physical address definition. */
+#define RTE_BAD_PHYS_ADDR ((phys_addr_t)-1)
/**
* Physical memory segment descriptor.
int32_t socket_id; /**< NUMA socket ID. */
uint32_t nchannel; /**< Number of channels. */
uint32_t nrank; /**< Number of ranks. */
+#ifdef RTE_LIBRTE_XEN_DOM0
+ /**< store segment MFNs */
+ uint64_t mfn[DOM0_NUM_MEMBLOCK];
+#endif
} __attribute__((__packed__));
+/**
+ * Lock page in physical memory and prevent from swapping.
+ *
+ * @param virt
+ * The virtual address.
+ * @return
+ * 0 on success, negative on error.
+ */
+int rte_mem_lock_page(const void *virt);
+
+/**
+ * Get physical address of any mapped virtual address in the current process.
+ * It is found by browsing the /proc/self/pagemap special file.
+ * The page must be locked.
+ *
+ * @param virt
+ * The virtual address.
+ * @return
+ * The physical address or RTE_BAD_PHYS_ADDR on error.
+ */
+phys_addr_t rte_mem_virt2phy(const void *virt);
/**
* Get the layout of the available physical memory.
*/
unsigned rte_memory_get_nrank(void);
+#ifdef RTE_LIBRTE_XEN_DOM0
+/**
+ * Return the physical address of elt, which is an element of the pool mp.
+ *
+ * @param memseg_id
+ * The mempool is from which memory segment.
+ * @param phy_addr
+ * physical address of elt.
+ *
+ * @return
+ * The physical address or error.
+ */
+phys_addr_t rte_mem_phy2mch(uint32_t memseg_id, const phys_addr_t phy_addr);
+
+/**
+ * Memory init for supporting application running on Xen domain0.
+ *
+ * @param void
+ *
+ * @return
+ * 0: successfully
+ * negative: error
+ */
+int rte_xen_dom0_memory_init(void);
+
+/**
+ * Attach to memory setments of primary process on Xen domain0.
+ *
+ * @param void
+ *
+ * @return
+ * 0: successfully
+ * negative: error
+ */
+int rte_xen_dom0_memory_attach(void);
+#endif
#ifdef __cplusplus
}
#endif