Changeset c9b8c5c in mainline for arch/ia32/src/smp/mp.c

Timestamp:

2005-04-24T21:59:33Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

ad36bd6

Parents:

f07bba5

Message:

APIC changes and fixes.
Be more robust during MP configuration.

Do not use APIC ID as CPU_ID_ARCH anymore.
Changing APIC ID's is not a good idea.
Use dr0 register instead.

File:

• arch/ia32/src/smp/mp.c (modified) (3 diffs)

arch/ia32/src/smp/mp.c

@@ -487 +487 @@
                 if (pr[i].cpu_flags & (1<<0) == 0)
                         continue;
-        
+
                 /*
                  * The bootstrap processor is already up.
@@ -493 +493 @@
                 if (pr[i].cpu_flags & (1<<1))
                         continue;
+
+                if (pr[i].l_apic_id == l_apic_id()) {
+                        printf("%X: bad processor entry #%d, will not send IPI to myself\n", &pr[i], i);
+                        continue;
+                }
                 
                 /*
@@ -502 +507 @@
                 memcopy(gdt, gdt_new, GDT_ITEMS*sizeof(struct descriptor));
                 gdtr.base = (__address) gdt_new;
-                
+
                 if (l_apic_send_init_ipi(pr[i].l_apic_id)) {
                         /*