Re: [Xen-devel] [PATCH 4/4] xen/arm: arm64: Remove MPIDR multiprocessing extensions check

2016-05-25 Thread Julien Grall
Hi Wei, On 25/05/16 03:10, Wei Chen wrote: In ARM64, the MPIDR multiprocessing extensions bit is reserved to 1. Well, technically the bit is unamed for ARM64. So I would make clear that the name is from AArch32. Something along: "The bit 31 (former bit Multiprocessing extensions bit in

Re: [Xen-devel] [PATCH 4/4] xen/arm: arm64: Remove MPIDR multiprocessing extensions check

2016-05-25 Thread Julien Grall
Hello Peng, On 25/05/16 13:37, Peng Fan wrote: On Wed, May 25, 2016 at 10:10:11AM +0800, Wei Chen wrote: In ARM64, the MPIDR multiprocessing extensions bit is reserved to 1. So, the value check for this bit is no longer necessary on ARM64. From ARM DDI0487A.G, I found the U bit for

Re: [Xen-devel] [PATCH 4/4] xen/arm: arm64: Remove MPIDR multiprocessing extensions check

2016-05-25 Thread Peng Fan
Hi Wei, On Wed, May 25, 2016 at 10:10:11AM +0800, Wei Chen wrote: >In ARM64, the MPIDR multiprocessing extensions bit is reserved to 1. >So, the value check for this bit is no longer necessary on ARM64. From ARM DDI0487A.G, I found the U bit for MPIDR_EL1: " Indicates a Uniprocessor system, as

[Xen-devel] [PATCH 4/4] xen/arm: arm64: Remove MPIDR multiprocessing extensions check

2016-05-24 Thread Wei Chen
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 --- xen/arch/arm/arm64/head.S | 1 - 1 file changed, 1 deletion(-) diff --git a/xen/arch/arm/arm64/head.S