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    SubjectRe: [PATCH 2/4] KVM: VMX: Add functions to fill VMCSINFO
    On 04/11/2012 01:34 PM, zhangyanfei wrote:
    > 于 2012年04月11日 16:48, Avi Kivity 写道:
    > > On 04/11/2012 04:50 AM, zhangyanfei wrote:
    > >> This patch is to implement the feature that at initialization of
    > >> kvm_intel module, fills VMCSINFO with a VMCS revision identifier,
    > >> and encoded offsets of VMCS fields. The reason why we put the
    > >> VMCSINFO processing at the initialization of kvm_intel module
    > >> is that it's dangerous to rob VMX resources while kvm module is
    > >> loaded.
    > >
    > > Maybe it should be done by a separate module.
    > >
    >
    > If we put vmcsinfo processing at the initialization of kvm_intel module,
    > as soon as the kvm_intel module is loaded, VMCSINFO is filled. And it is
    > because vmcsinfo processing is at the initialization of kvm_intel module,
    > no kvm guests are running, so it will not rob any VMX resources.
    >
    > If it is done by a separate module, I am afraid this module may not be
    > loaded when the kernel needs VMCSINFO.
    >

    You can make the module autoload when the vmx cpufeature is detected.
    But then there is an ordering problem wrt kvm-intel.

    --
    error compiling committee.c: too many arguments to function

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