From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Tue, 02 Sep 2014 12:03:04 +0000
Subject: Re: Basic Query regarding kvm_init
Message-Id: <5405B1F8.9020109@redhat.com>
List-Id: <kvm-ppc.vger.kernel.org>
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To: kvm-ppc@vger.kernel.org

Il 01/09/2014 20:49, Amit Tomar ha scritto:
> I'm new to KVM and have basic query regarding kvm_init call from inside
> e500.c?
> 
> I'm aware that first argument in "kvm_init" for x86 is the kvm_callbacks
> structure to specify the handlers to be called when I/O or some
> system-sensitive instructions are executed inside the virtual 
> machine.
> 
> kvm_init(*&vmx_x86_op*s, sizeof(struct vcpu_vmx), __alignof__(struct
> vcpu_vmx), THIS_MODULE);
> 
> 
> But when I looked into kvm_init call for PowerPc cores,first argument is
> kept NULL.  
> 
> kvm_init(*NULL*, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE); --->
> For PowerPC
> 
> Where is the kvm_callbacks structure as it is in x86,what approach has
> been taken for PowePC?

PowerPC doesn't put common code in a separate module (like KVM does for
VMX and SVM), so it doesn't need the callbacks.

Paolo