In AArch32, MPIDR bit31 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 <wei.c...@linaro.org>
---
v2: Make clear the status of MPIDR.SMP bit in AArch32 and AArch64.
---
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 3090beb..91e2817 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)
--
2.7.4
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