Re: [PATCH 1/2] KVM: nVMX: fix EPT permissions as reported in exit qualification

Xiao Guangrong <guangrong.xiao@xxxxxxxxx> · Fri, 12 May 2017 13:13:07 +0800






On 05/12/2017 11:59 AM, Xiao Guangrong wrote:
error:
@@ -452,7 +459,7 @@ static int FNAME(walk_addr_generic)(struct guest_walker *walker,
       */
      if (!(errcode & PFERR_RSVD_MASK)) {
          vcpu->arch.exit_qualification &= 0x187;
-        vcpu->arch.exit_qualification |= ((pt_access & pte) & 0x7) << 3;
                                                                 ^ here, the original code
is buggy as pt_access and pte have different bit order, fortunately, this patch fixes it
too. :)


It's exactly what this patch aims at, do not know what i was thinking when
wrote these down. :(






