On 29/03/2016 07:27, Suravee Suthikulpanit wrote:
>>
>>> >Adding function pointers in struct kvm_x86_ops for processor-specific
>>> >layer to provide hooks for when KVM initialize and un-initialize VM.
>> This is not the only thing your patch is doing, and the "other" change
>> definitely needs a lot more explanation about why you did it and how you
>> audited the code to ensure that it is safe.
>>
>> Paolo
>>
>
> Sorry, for not mentioning this earlier. I am moving the
> kvm_arch_init_vm() call mainly to go after mutex_init(&kvm->slots_lock)
> since I am calling the x86_set_memory_region() (which uses slots_lock)
> in the vm_init() hooks (for AVIC initialization).
>
> Lemme re-check if this would be safe for other code.
No problem. In the meanwhile a patch got in ("KVM: fix spin_lock_init
order on x86") that should help you.
Thanks,
Paolo
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