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Re: [PATCH v2 8/9] KVM: MMU: fully check zero bits for sptes

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On 05/08/2015 06:04, Xiao Guangrong wrote:
> -	for_each_shadow_entry_lockless(vcpu, addr, iterator, spte)
> +	for_each_shadow_entry_lockless(vcpu, addr, iterator, spte) {
> +		leaf = iterator.level;
> +
> +		if (!root)
> +			root = leaf;
> +
> +		sptes[leaf - 1] = spte;
> +

I'm a bit undecided between this and open-coding the macro:

        for (shadow_walk_init(&iterator, vcpu, addr), root = iterator.level;
             shadow_walk_okay(&iterator);
             __shadow_walk_next(&iterator, spte)) {
                leaf = iterator.level;
                spte = mmu_spte_get_lockless(iterator.sptep);

Any second opinions?

Paolo
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[PATCH v2 0/9] KVM: MMU: fix and improve validation of mmio page fault Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-05 06:20 +0200
  [PATCH v2 6/9] KVM: MMU: introduce the framework to check zero bits on sptes Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-05 06:20 +0200
  [PATCH v2 5/9] KVM: MMU: split reset_rsvds_bits_mask_ept Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-05 06:20 +0200
  [PATCH v2 4/9] KVM: MMU: split reset_rsvds_bits_mask Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-05 06:20 +0200
  [PATCH v2 1/9] KVM: MMU: fix validation of mmio page fault Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-05 06:20 +0200
  [PATCH v2 9/9] KVM: VMX: drop ept misconfig check Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-05 06:20 +0200
  [PATCH v2 2/9] KVM: MMU: move FNAME(is_rsvd_bits_set) to mmu.c Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-05 06:20 +0200
  [PATCH v2 8/9] KVM: MMU: fully check zero bits for sptes Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-05 06:20 +0200
    Re: [PATCH v2 8/9] KVM: MMU: fully check zero bits for sptes Paolo Bonzini <pbonzini@redhat.com> - 2015-08-05 12:20 +0200
      Re: [PATCH v2 8/9] KVM: MMU: fully check zero bits for sptes Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-06 05:00 +0200

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