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Re: [Qemu-devel] [PATCH 3/3] QEMU kvm/i386 : Adding KICK_VCPU capability

From: Avi Kivity
Subject: Re: [Qemu-devel] [PATCH 3/3] QEMU kvm/i386 : Adding KICK_VCPU capability support in i386 target.
Date: Mon, 26 Dec 2011 16:07:53 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111115 Thunderbird/8.0

On 12/19/2011 04:11 PM, Jan Kiszka wrote:
> >>
> >> Backwards compatibility
> > 
> > If we want backwards compatibility, we need more than just a simple feature 
> > check, no? Oh, you feed that into CPUID? That's nifty. Ok, so you behave 
> > like VMX/SVM do on real hardware - you always expose the functionality but 
> > don't list it in CPUID for older user space.
> Do we want this to be on when providing a compat machine type ("pc-0.12"
> etc.) to the guest? Then it does need more work (see the dance around
> kvmclock).

We do.  I have a feeling the whole cpuid stuff, paravirt and
non-paravirt, needs some fixing in this area.  It's different than the
normal compat code since not only qemu, but also kvm and the host cpu
have a say in what's supported and what's not.

error compiling committee.c: too many arguments to function

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