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Re: [Qemu-devel] [PATCH 1/4] kvm-all: add kvm_ioctl, kvm_vm_ioctl, kvm_v

From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] [PATCH 1/4] kvm-all: add kvm_ioctl, kvm_vm_ioctl, kvm_vcpu_ioctl tracepoints
Date: Wed, 8 May 2013 10:48:51 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

On Fri, May 03, 2013 at 02:12:14PM +0200, Andreas Färber wrote:
> > +# kvm-all.c
> > +kvm_ioctl(int type, void *arg) "type %d, arg %p"
> > +kvm_vm_ioctl(int type, void *arg) "type %d, arg %p"
> > +kvm_vcpu_ioctl(int cpu_index, int type, void *arg) "cpu_index %d, type %d, 
> > arg %p"
> Sorry that I'm just seeing this patch now (wasn't CC'ed), but I wonder
> whether cpu_index is the best thing to trace here? Can we still change
> trace event API or would we have to nack/change now?

Trace events are not stable.  We can change them.


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