Re: [PATCH v12 4/7] KVM: stats: Support binary stats retrieval for a VCPU

On Mon, Jun 21, 2021 at 11:46 AM Paolo Bonzini pbonzini@redhat.com wrote:

On 19/06/21 00:27, Jing Zhang wrote:

...

• struct kvm_vcpu_stat stat;
  struct kvm_dirty_ring dirty_ring;
  

• char stats_id[KVM_STATS_NAME_SIZE];
  

I think stats_id needs to be part of the usercopy region too.

You can also use

offsetofend(struct kvm_vcpu, stats_id) - offsetof(struct kvm_vcpu, arch)

to compute the size.

Sure! Will do.

Paolo

Thanks, Jing