eal/linux: disable iopl operation for IBM Power

[dpdk.git] / lib / librte_eal / linuxapp / eal / eal.c

diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c
index 5e5a7a0..68cae88 100644 (file)
--- a/lib/librte_eal/linuxapp/eal/eal.c
+++ b/lib/librte_eal/linuxapp/eal/eal.c
@@ -50,7 +50,9 @@
 #include <errno.h>
 #include <sys/mman.h>
 #include <sys/queue.h>
+#if defined(RTE_ARCH_X86_64) || defined(RTE_ARCH_I686)
 #include <sys/io.h>
+#endif
 
 #include <rte_common.h>
 #include <rte_debug.h>
@@ -673,13 +675,19 @@ rte_eal_mcfg_complete(void)
 
 /*
  * Request iopl privilege for all RPL, returns 0 on success
+ * iopl() call is mostly for the i386 architecture. For other architectures,
+ * return -1 to indicate IO privilege can't be changed in this way.
  */
 int
 rte_eal_iopl_init(void)
 {
+#if defined(RTE_ARCH_X86_64) || defined(RTE_ARCH_I686)
        if (iopl(3) != 0)
                return -1;
        return 0;
+#else
+       return -1;
+#endif
 }
 
 /* Launch threads, called at application init(). */