Re: [Xen-devel] [PATCH v4 0/4] xen/arm: arm64: Widen register access to mpidr to 64-bits

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

Hi Wei Liu, Julien,

this series is a bug fix. I think it should go in Xen 4.7, do you agree?


On Tue, 31 May 2016, Wei Chen wrote:
> bits are expanded to 64-bits. But Xen 64-bit ARM code treats this it
> as 32-bit register.
> We have to provide correct accessing to this register to avoid
> unexpected issues that is caused by incorrect MPIDR value.
> 
> Wei Chen (4):
>   xen/arm: Change the variable type of cpu_logical_map to register_t
>   xen/arm: Make AFFINITY_MASK generate correct mask for level3
>   xen:arm: arm64: Add correct MPIDR_HWID_MASK value for ARM64
>   xen/arm: arm64: Remove MPIDR multiprocessing extensions check
> 
>  xen/arch/arm/arm64/head.S       |  3 +--
>  xen/arch/arm/gic-v3.c           |  2 +-
>  xen/arch/arm/smpboot.c          | 13 +++++++------
>  xen/include/asm-arm/processor.h |  9 +++++++--
>  4 files changed, 16 insertions(+), 11 deletions(-)
> 
> -- 
> 2.7.4
> 

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