Re: [PULL 07/28] x86/cpu: use standard-headers/asm-x86.kvm_para.h

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On 25/05/2018 13:06, Peter Maydell wrote:
> --- a/include/standard-headers/asm-x86/kvm_para.h
> +++ b/include/standard-headers/asm-x86/kvm_para.h
> @@ -29,7 +29,7 @@
>  #define KVM_FEATURE_PV_TLB_FLUSH       9
>  #define KVM_FEATURE_ASYNC_PF_VMEXIT    10
> 
> -#define KVM_HINTS_DEDICATED      0
> +#define KVM_HINTS_REALTIME      0
> 
>  /* The last 8 bits are used to indicate how to interpret the flags field
>   * in pvclock structure. If no bits are set, all flags are ignored.
> 
> I'm not sure what's going on here -- commit 633711e8287 in
> the kernel just renames the constant, but doesn't that
> break userspace API ?

No, but only because the constant with the old name was not in any
released version.  It was added in 4.17-rc1.

Thanks,

Paolo



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