lkml.org 
[lkml]   [2016]   [Mar]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[RFC PATCH 0/2] KVM: MMU: return page fault error code from permission_fault
Date
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.

Paolo

Paolo Bonzini (2):
KVM: MMU: precompute page fault error code
KVM: MMU: return page fault error code from permission_fault

arch/x86/kvm/mmu.c | 2 +-
arch/x86/kvm/mmu.h | 15 ++++++++++-----
arch/x86/kvm/paging_tmpl.h | 31 +++++++++++++++++--------------
3 files changed, 28 insertions(+), 20 deletions(-)

--
1.8.3.1

\
 
 \ /
  Last update: 2016-03-08 13:21    [W:0.046 / U:1.548 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site