xnu-517.3.15.tar.gz

[apple/xnu.git] / bsd / dev / ppc / kern_machdep.c

diff --git a/bsd/dev/ppc/kern_machdep.c b/bsd/dev/ppc/kern_machdep.c
index 6f9d2a154c4634f91e4de0491ef40f75cf83bf9d..d4422a1b9b2adac013fff95136c6e438e9e6ca55 100644 (file)
--- a/bsd/dev/ppc/kern_machdep.c
+++ b/bsd/dev/ppc/kern_machdep.c
@@ -57,6 +57,9 @@ check_cpu_subtype(cpu_subtype_t cpu_subtype)
 
        switch (cpu_subtype) {
                case CPU_SUBTYPE_POWERPC_970:
+                               /* Do not allow a 970 binary to run on non-970 systems */
+                               if (ms->cpu_subtype != CPU_SUBTYPE_POWERPC_970)
+                               break;
                case CPU_SUBTYPE_POWERPC_7450:
                case CPU_SUBTYPE_POWERPC_7400:
                case CPU_SUBTYPE_POWERPC_750:
@@ -86,7 +89,7 @@ grade_cpu_subtype(cpu_subtype_t cpu_subtype)
         * cctools project.  As of 2/16/98 this is what has been agreed upon for
         * the PowerPC subtypes.  If an exact match is not found the subtype will
         * be picked from the following order:
-        *              970, 7450, 7400, 750, ALL
+        *              970(but only on 970), 7450, 7400, 750, ALL
         * Note the 601 is NOT in the list above.  It is only picked via an exact
         * match. For details see Radar 2213821.
         *
@@ -99,6 +102,9 @@ grade_cpu_subtype(cpu_subtype_t cpu_subtype)
                return 6;
        switch (cpu_subtype) {
                case CPU_SUBTYPE_POWERPC_970:
+                               /* Do not allow a 970 binary to run on non-970 systems */               
+                               if (ms->cpu_subtype != CPU_SUBTYPE_POWERPC_970)
+                                       break;
                        return 5;
                case CPU_SUBTYPE_POWERPC_7450:
                        return 4;