Zhao,

On Thu, 7 Mar 2019, Zhao Yakui wrote:

> ACRN is one open-source hypervisour, which is maintained by Linux
> foundation. This is to add the para-virtualization support so that
> it allows to enable the Linux guest on acrn-hypervisor.
> 
> This adds x86_hyper_acrn into supported hypervisors array, which
> enables ACRN services guest running on ACRN hypervisor. It is

What is a ACRN services guest? 

> restricted to X86_64.
> 
> Signed-off-by: Jason Chen CJ <jason.cj.c...@intel.com>
> Signed-off-by: Zhao Yakui <yakui.z...@intel.com>

This SOB chain is wrong. If Jason wrote the patch, then there should be a
'From: Jason ..' line at the top of the change log. If you both wrote it
then Jason's SOB wants to be preceeded by a 'Co-developed-by: Jason....'
line. See Documentation/process/

> +config ACRN
> +     bool "Enable services on ACRN hypervisor"
> +     depends on X86_64 && PARAVIRT
> +     help
> +       This option allows to run Linux as guest in ACRN hypervisor.
> +       It is needed if you want to run ACRN services linux on top of
> +       ACRN hypervisor.

This help text does not make any sense to me.

> +const struct hypervisor_x86 x86_hyper_acrn = {
> +     .name                   = "ACRN",
> +     .detect                 = acrn_detect,
> +     .type                   = X86_HYPER_ACRN,
> +     .init.init_platform     = acrn_init_platform,
> +     .init.x2apic_available  = acrn_x2apic_available,
> +};
> +EXPORT_SYMBOL(x86_hyper_acrn);

Whay is this exported? The only user of this is hypervisor.c and that is
built in. Please remove.

Thanks,

        tglx

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