From: Wei Chen <wei.chen@linaro.org>
To: xen-devel@lists.xen.org
Cc: julien.grall@arm.com, sstabellini@kernel.org,
Wei Chen <Wei.Chen@linaro.org>,
steve.capper@arm.com
Subject: [PATCH 4/4] xen/arm: arm64: Remove MPIDR multiprocessing extensions check
Date: Wed, 25 May 2016 10:10:11 +0800 [thread overview]
Message-ID: <1464142211-343-1-git-send-email-Wei.Chen@linaro.org> (raw)
In ARM64, the MPIDR multiprocessing extensions bit is reserved to 1.
So, the value check for this bit is no longer necessary on ARM64.
Signed-off-by: Wei Chen <Wei.Chen@linaro.org>
---
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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next reply other threads:[~2016-05-25 2:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-25 2:10 Wei Chen [this message]
2016-05-25 12:37 ` [PATCH 4/4] xen/arm: arm64: Remove MPIDR multiprocessing extensions check Peng Fan
2016-05-25 13:31 ` Julien Grall
2016-05-25 14:11 ` Julien Grall
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