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[Xen-devel] do_mmu_update


  • To: xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: "Furquan Shaikh" <furquan.m.shaikh@xxxxxxxxx>
  • Date: Tue, 13 Jan 2009 14:50:41 +0530
  • Delivery-date: Tue, 13 Jan 2009 01:21:08 -0800
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Hello friends,
Can anyone please tell me what the not_a_pt: label in do_mmu_update used for?

default:
not_a_pt:
                    {
                        if ( unlikely(!get_page_type(page, PGT_writable_page)) )
                                    break;

                        perfc_incr(writable_mmu_updates);
                        okay = paging_write_guest_entry(v, va, req.val, _mfn(mfn));
   
                        put_page_type(page);
                    }
                    break;
               

Regards,
Furquan
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