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Re: [RFC PATCH 2/2] KVM: MMU: return page fault error code from permission_fault

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On 03/08/2016 07:45 PM, Paolo Bonzini wrote:
> Intel's new PKU extension introduces a bit of the page fault error code
> that must be dynamically computed after the PTE lookup (unlike I/D, U/S
> and W/R).  To ease this, these two patches make permission_fault return
> the page fault error code.
>
> Right now it only adds the P bit to the input parameter "pfec", but PKU
> can change that.

Yep, i got the same idea when i reviewed the pkey patchset. This patch
looks good to me.

Reviewed-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>

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[RFC PATCH 0/2] KVM: MMU: return page fault error code from permission_fault Paolo Bonzini <pbonzini@redhat.com> - 2016-03-08 12:50 +0100
  [RFC PATCH 1/2] KVM: MMU: precompute page fault error code Paolo Bonzini <pbonzini@redhat.com> - 2016-03-08 12:50 +0100
    Re: [RFC PATCH 1/2] KVM: MMU: precompute page fault error code Paolo Bonzini <pbonzini@redhat.com> - 2016-03-10 15:10 +0100
    Re: [RFC PATCH 1/2] KVM: MMU: precompute page fault error code Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2016-03-10 15:10 +0100
  [RFC PATCH 2/2] KVM: MMU: return page fault error code from permission_fault Paolo Bonzini <pbonzini@redhat.com> - 2016-03-08 12:50 +0100
    Re: [RFC PATCH 2/2] KVM: MMU: return page fault error code from  permission_fault Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2016-03-10 15:10 +0100
      Re: [RFC PATCH 2/2] KVM: MMU: return page fault error code from  permission_fault Paolo Bonzini <pbonzini@redhat.com> - 2016-03-10 15:10 +0100

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