Changeset 8a78e68 in mainline

Timestamp:

2005-02-26T22:37:59Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

e6ba9a3f

Parents:

f5075fa

Message:

MP Specification says that MP Configuration Table extended entries with unrecongised types should be skipped rather than paniced on.

Location:

arch/ia32

Files:

• include/smp/mp.h (modified) (1 diff)
• src/smp/mp.c (modified) (1 diff)

arch/ia32/include/smp/mp.h

@@ -34 +34 @@
 #include <synch/waitq.h>
 #include <config.h>
+
+#define CT_EXT_ENTRY_TYPE               0
+#define CT_EXT_ENTRY_LEN                1
 
 struct __mpfs {

arch/ia32/src/smp/mp.c

@@ -414 +414 @@
 void ct_extended_entries(void)
 {
-        /*
-         * Not yet implemented.
-         */
-        if (ct->ext_table_length)
-                panic("ct_extended_entries: not supported\n");
+        __u8 *ext = (__u8 *) ct + ct->base_table_length;
+        __u8 *cur;
+
+        for (cur = ext; cur < ext + ct->ext_table_length; cur += cur[CT_EXT_ENTRY_LEN]) {
+                switch (cur[CT_EXT_ENTRY_TYPE]) {
+                        default:
+                                printf("%X: skipping MP Configuration Table extended entry type %d\n", cur, cur[CT_EXT_ENTRY_TYPE]);
+                                break;
+                }
+        }
 }