From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: [PATCH] xen/arm32: Call start_xen only on the boot CPU Date: Mon, 7 Oct 2013 15:44:35 +0100 Message-ID: <1381157075-28214-1-git-send-email-julien.grall@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org Cc: patches@linaro.org, tim@xen.org, ian.campbell@citrix.com, Julien Grall , stefano.stabellini@eu.citrix.com List-Id: xen-devel@lists.xenproject.org The boot CPU can have a CPU ID non-equal to zero. Xen needs to check the logical CPU ID (in r12) to know if the CPU is the boot one. Signed-off-by: Julien Grall --- xen/arch/arm/arm32/head.S | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/xen/arch/arm/arm32/head.S b/xen/arch/arm/arm32/head.S index 92b3c48..ce1d21a 100644 --- a/xen/arch/arm/arm32/head.S +++ b/xen/arch/arm/arm32/head.S @@ -403,7 +403,8 @@ launch: sub sp, #CPUINFO_sizeof /* Make room for CPU save record */ mov r0, r10 /* Marshal args: - phys_offset */ mov r1, r8 /* - DTB address */ - movs r2, r7 /* - CPU ID */ + mov r2, r7 /* - CPU ID */ + teq r12, #0 beq start_xen /* and disappear into the land of C */ b start_secondary /* (to the appropriate entry point) */ -- 1.7.10.4