Re: [PATCH -v3] KVM: MCE: Add MCE support to KVM

[Avi Kivity]

Jan Kiszka wrote:
> Avi Kivity wrote:
>   
> > Huang Ying wrote:
> >     
> > > The related MSRs are emulated. MCE capability is exported via
> > > extension KVM_CAP_MCE and ioctl KVM_X86_GET_MCE_CAP_SUPPORTED.  A new
> > > vcpu ioctl command KVM_X86_SETUP_MCE is used to setup MCE emulation
> > > such as the mcg_cap. MCE is injected via vcpu ioctl command
> > > KVM_X86_SET_MCE. Extended machine-check state (MCG_EXT_P) and CMCI are
> > > not implemented.
> > >
> > >   
> > >       
> > Applied, thanks.
> >
> >     
>
> This patch breaks kvm build for 32-bit hosts.
>   

Strange, I build-test on i386.  What's your failure?

> Is the KVM MCE interface completely or only partially limited to x86-64,
> ie. can I completely #ifdef it away on 32-bit hosts (including
> KVM_CAP_MCE) or is this more complicated?
>   

I don't see any reason to limit it to x86_64?

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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