CPU0 boots up secondary CPUs one by one. Before booting one secondary CPU, CPU0 will assign hwid to smp_up_cpu and flush cache. After the secondary CPU boots up, CPU0 will assign MPIDR_INVALID to smp_up_cpu and flush cache.
There is no need for secondary CPUs to assign MPIDR_INVALID to smp_up_cpu. So, drop it. Signed-off-by: Peng Fan <van.free...@gmail.com> Cc: Julien Grall <julien.gr...@arm.com> Cc: Stefano Stabellini <sstabell...@kernel.org> --- xen/arch/arm/smpboot.c | 1 - 1 file changed, 1 deletion(-) diff --git a/xen/arch/arm/smpboot.c b/xen/arch/arm/smpboot.c index c5109bf..6b3c157 100644 --- a/xen/arch/arm/smpboot.c +++ b/xen/arch/arm/smpboot.c @@ -309,7 +309,6 @@ void start_secondary(unsigned long boot_phys_offset, smp_wmb(); /* Now report this CPU is up */ - smp_up_cpu = MPIDR_INVALID; cpumask_set_cpu(cpuid, &cpu_online_map); smp_wmb(); -- 2.6.2 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel