[PATCH] uml: add skas0 command-line option

This adds the "skas0" parameter to force skas0 operation on SKAS3 host and
shows which operating mode has been selected.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 8736d098f0ee..ca2bb6f09a7d 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -38,6 +38,9 @@
 #include "choose-mode.h"
 #include "mode_kern.h"
 #include "mode.h"
+#ifdef UML_CONFIG_MODE_SKAS
+#include "skas.h"
+#endif
 
 #define DEFAULT_COMMAND_LINE "root=98:0"
 
@@ -318,6 +321,7 @@ int linux_main(int argc, char **argv)
         unsigned long avail, diff;
         unsigned long virtmem_size, max_physmem;
         unsigned int i, add;
+        char * mode;
 
         for (i = 1; i < argc; i++){
                 if((i == 1) && (argv[i][0] == ' ')) continue;
@@ -338,6 +342,21 @@ int linux_main(int argc, char **argv)
                 exit(1);
         }
 #endif
+
+#ifndef CONFIG_MODE_SKAS
+        mode = "TT";
+#else
+        /* Show to the user the result of selection */
+        if (mode_tt)
+                mode = "TT";
+        else if (proc_mm && ptrace_faultinfo)
+                mode = "SKAS3";
+        else
+                mode = "SKAS0";
+#endif
+
+        printf("UML running in %s mode\n", mode);
+
         uml_start = CHOOSE_MODE_PROC(set_task_sizes_tt, set_task_sizes_skas, 0,
                                      &host_task_size, &task_size);