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-rw-r--r--xen/arch/arm/arm32/head.S4
-rw-r--r--xen/arch/arm/arm64/head.S6
2 files changed, 5 insertions, 5 deletions
diff --git a/xen/arch/arm/arm32/head.S b/xen/arch/arm/arm32/head.S
index 510ccff3ed..92b3c4896f 100644
--- a/xen/arch/arm/arm32/head.S
+++ b/xen/arch/arm/arm32/head.S
@@ -127,9 +127,9 @@ common_start:
* find that multiprocessor extensions are
* present and the system is SMP */
mrc CP32(r1, MPIDR)
- tst r1, #(1<<31) /* Multiprocessor extension supported? */
+ tst r1, #MPIDR_SMP /* Multiprocessor extension supported? */
beq 1f
- tst r1, #(1<<30) /* Uniprocessor system? */
+ tst r1, #MPIDR_UP /* Uniprocessor system? */
bne 1f
bic r7, r1, #(~MPIDR_HWID_MASK) /* Mask out flags to get CPU ID */
1:
diff --git a/xen/arch/arm/arm64/head.S b/xen/arch/arm/arm64/head.S
index b2d44ccf4c..062645ed77 100644
--- a/xen/arch/arm/arm64/head.S
+++ b/xen/arch/arm/arm64/head.S
@@ -153,10 +153,10 @@ common_start:
* find that multiprocessor extensions are
* present and the system is SMP */
mrs x0, mpidr_el1
- tbz x0, 31, 1f /* Multiprocessor extension not supported? */
- tbnz x0, 30, 1f /* Uniprocessor system? */
+ tbz x0, _MPIDR_SMP, 1f /* Multiprocessor extension not supported? */
+ tbnz x0, _MPIDR_UP, 1f /* Uniprocessor system? */
- mov x13, #(0xff << 24)
+ mov x13, #(~MPIDR_HWID_MASK)
bic x24, x0, x13 /* Mask out flags to get CPU ID */
1: