Re: [Xen-devel] [PATCH 4/4] x86/EPT: also force EMT re-evaluation if pinned ranges change

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

> From: Jan Beulich [mailto:JBeulich@xxxxxxxx]
> Sent: Wednesday, April 23, 2014 4:42 PM
> 
> This was inadvertently left out of aa9114ed ("x86/EPT: force
> re-evaluation of memory type as necessary"). Note that this
> intentionally doesn't use memory_type_changed(): Changes to the pinned
> ranges are independent of IOMMU presence, which that function uses to
> determine whether to call the underlying p2m_memory_type_changed().
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Acked-by: Kevin Tian <kevin.tian@xxxxxxxxx>

> 
> --- a/xen/arch/x86/hvm/mtrr.c
> +++ b/xen/arch/x86/hvm/mtrr.c
> @@ -650,6 +650,7 @@ int32_t hvm_set_mem_pinned_cacheattr(
>                  rcu_read_unlock(&pinned_cacheattr_rcu_lock);
>                  list_del_rcu(&range->list);
>                  call_rcu(&range->rcu, free_pinned_cacheattr_entry);
> +                p2m_memory_type_changed(d);
>                  return 0;
>              }
>          rcu_read_unlock(&pinned_cacheattr_rcu_lock);
> @@ -695,6 +696,7 @@ int32_t hvm_set_mem_pinned_cacheattr(
>      range->type = type;
> 
>      list_add_rcu(&range->list,
> &d->arch.hvm_domain.pinned_cacheattr_ranges);
> +    p2m_memory_type_changed(d);
> 
>      return 0;
>  }
> 
> 


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