RE: [patch] fix kvm_arch_vcpu_ioctl_[gs]et_regs() - v2

Jes Sorensen wrote:
> Avi Kivity wrote:
>> This makes several tons of sense, but breaks backwards compatibility.
>> If I understand correctly, get/set was never used so this shouldn't
>> matter? 
>> 
>> I suggest reserving some space at the end of kvm_regs in case
>> further state needs to be added. 
>> 
>> Please add a KVM_CAP_ entry to advertise the fixup.  This way
>> userspace can determine that it's compiling or running on an old
>> kernel and error out gracefully.
> 
> Hi Avi,
> 
> Here's an update version of this patch, which leaves some space for
> future extensions in struct kvm_regs. The KVM_CAP is unnecessary as
> GET/SET_REGS never worked on ia64.

Thanks, Jes! 
Xiantao

Acked-by : Xiantao Zhang <[email protected]>