Re: [Xen-devel] [RFC PATCH 13/16]: PVH xen: introduce p2m_map_foreign

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 12.01.13 at 03:09, Mukesh Rathor <mukesh.rathor@xxxxxxxxxx> wrote:
> --- a/xen/arch/x86/physdev.c  Fri Jan 11 16:38:07 2013 -0800
> +++ b/xen/arch/x86/physdev.c  Fri Jan 11 16:43:02 2013 -0800
> @@ -485,6 +485,7 @@ ret_t do_physdev_op(int cmd, XEN_GUEST_H
>  
>      case PHYSDEVOP_set_iopl: {
>          struct physdev_set_iopl set_iopl;
> +        NO_PVH_ASSERT_VCPU(current);
>          ret = -EFAULT;
>          if ( copy_from_guest(&set_iopl, arg, 1) != 0 )
>              break;

As i the previous patch - if execution can reach here for a PVH
guest, you must not assert this not being the case, but return
an error instead.

Jan


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