[Qemu-devel] Re: [PATCH] provide a stub version of kvm-all.c if !CONFIG_KVM

[Paolo Bonzini <pbonzini@redhat.com>]

>>> The reason is to avoid including kvm.h by vl.c.
>>
>>   But that's not a problem, kvm.h can be included by compiled-once files;
>> that was the reason to introduce the stubs in the first place.  kvm_* should
>> be declared in kvm.h.
>
> That can't be safe because CONFIG_KVM will not be defined for files
> compiled once. So even with the stubs, those files would use inlined
> stubs where they shouldn't.

1) Stubs are linked, not inlined.

2) vl.c does not use kvm_enabled

3) even if it did, it is defined like this after my patch:

#if defined CONFIG_KVM || !defined NEED_CPU_H
#define kvm_enabled() (kvm_allowed)
#else
#define kvm_enabled() (0)
#endif

Paolo