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Date:      Wed, 26 Oct 2016 12:30:53 +0000 (UTC)
From:      Andrew Turner <andrew@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r307961 - head/sys/arm64/arm64
Message-ID:  <201610261230.u9QCUrR2017261@repo.freebsd.org>

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Author: andrew
Date: Wed Oct 26 12:30:53 2016
New Revision: 307961
URL: https://svnweb.freebsd.org/changeset/base/307961

Log:
  Only release CPUs when they exist.
  
  MFC after:	1 week
  Sponsored by:	DARPA, AFRL

Modified:
  head/sys/arm64/arm64/mp_machdep.c

Modified: head/sys/arm64/arm64/mp_machdep.c
==============================================================================
--- head/sys/arm64/arm64/mp_machdep.c	Wed Oct 26 12:29:56 2016	(r307960)
+++ head/sys/arm64/arm64/mp_machdep.c	Wed Oct 26 12:30:53 2016	(r307961)
@@ -203,6 +203,10 @@ release_aps(void *dummy __unused)
 {
 	int i;
 
+	/* Only release CPUs if they exist */
+	if (mp_ncpus == 1)
+		return;
+
 	intr_pic_ipi_setup(IPI_AST, "ast", ipi_ast, NULL);
 	intr_pic_ipi_setup(IPI_PREEMPT, "preempt", ipi_preempt, NULL);
 	intr_pic_ipi_setup(IPI_RENDEZVOUS, "rendezvous", ipi_rendezvous, NULL);



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