Changeset fe32163 in mainline for kernel/generic/src/smp/ipi.c

Timestamp:

2010-06-29T00:08:48Z (14 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

c19aa612

Parents:

9a21f9d

Message:

improve support for inactive CPUs
major revision of MADT and MPS parsing code
limit the number of active CPUs on ia32 and amd64 to 8 (actually the APIC ID of all active CPUs must be in the range 0 .. 7 to avoid tripping on an assertion in APIC code)
fix off-by-one bug in MADT parsing code (missing the last entry)

File:

• kernel/generic/src/smp/ipi.c (modified) (2 diffs)

kernel/generic/src/smp/ipi.c

@@ -47 +47 @@
  * @param ipi Message to broadcast.
  *
- * @bug The decision whether to actually send the IPI must be based
- *      on a different criterion. The current version has
- *      problems when some of the detected CPUs are marked
- *      disabled in machine configuration.
  */
 void ipi_broadcast(int ipi)
@@ -60 +56 @@
          */
         
-        if ((config.cpu_active > 1) && (config.cpu_active == config.cpu_count))
+        if (config.cpu_count > 1)
                 ipi_broadcast_arch(ipi);
 }