From 1f8168784ebfd862586d1d02acb3352ec3715d12 Mon Sep 17 00:00:00 2001 From: Wei Chen Date: Tue, 31 May 2016 10:54:14 +0800 Subject: [PATCH] xen/arm: arm64: Remove MPIDR multiprocessing extensions check In AArch32, MPIDR bit 31 is defined as multiprocessing extensions bit. But in AArch64, this bit is always RES1. So the value check for this bit is no longer necessary in AArch64. Signed-off-by: Wei Chen Reviewed-by: Julien Grall Signed-off-by: Stefano Stabellini --- xen/arch/arm/arm64/head.S | 1 - 1 file changed, 1 deletion(-) diff --git a/xen/arch/arm/arm64/head.S b/xen/arch/arm/arm64/head.S index 3090beb71d..91e2817953 100644 --- a/xen/arch/arm/arm64/head.S +++ b/xen/arch/arm/arm64/head.S @@ -267,7 +267,6 @@ common_start: * find that multiprocessor extensions are * present and the system is SMP */ mrs x0, mpidr_el1 - tbz x0, _MPIDR_SMP, 1f /* Multiprocessor extension not supported? */ tbnz x0, _MPIDR_UP, 1f /* Uniprocessor system? */ ldr x13, =(~MPIDR_HWID_MASK) -- 2.30.2