[Xen-changelog] [xen master] xen/arm32: Call start_xen only on the boot CPU

[patchbot@xxxxxxx]

commit bd7a85f9a4040a117696c43985932243df70def7
Author:     Julien Grall <julien.grall@xxxxxxxxxx>
AuthorDate: Mon Oct 7 15:44:35 2013 +0100
Commit:     Ian Campbell <ian.campbell@xxxxxxxxxx>
CommitDate: Thu Oct 10 11:18:25 2013 +0100

    xen/arm32: Call start_xen only on the boot CPU
    
    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 <julien.grall@xxxxxxxxxx>
    Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
 xen/arch/arm/arm32/head.S |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

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) */
 
--
generated by git-patchbot for /home/xen/git/xen.git#master

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