[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH] 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> --- 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 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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