svn commit: r270223 - head/sys/amd64/include

John Baldwin jhb at FreeBSD.org
Wed Aug 20 16:06:25 UTC 2014


Author: jhb
Date: Wed Aug 20 16:06:24 2014
New Revision: 270223
URL: http://svnweb.freebsd.org/changeset/base/270223

Log:
  Bump MAXCPU on amd64 from 64 to 256.  In practice APIC only permits 255
  CPUs (IDs 0 through 254).  Getting above that limit requires x2APIC.
  
  MFC after:	1 month

Modified:
  head/sys/amd64/include/param.h

Modified: head/sys/amd64/include/param.h
==============================================================================
--- head/sys/amd64/include/param.h	Wed Aug 20 16:05:15 2014	(r270222)
+++ head/sys/amd64/include/param.h	Wed Aug 20 16:06:24 2014	(r270223)
@@ -65,7 +65,7 @@
 
 #if defined(SMP) || defined(KLD_MODULE)
 #ifndef MAXCPU
-#define MAXCPU		64
+#define MAXCPU		256
 #endif
 #else
 #define MAXCPU		1


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