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

[Xiao Guangrong]

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@xxxxxxxxxxxxxxx>