Messages in this thread | | | From | Paolo Bonzini <> | Subject | [RFC PATCH 0/2] KVM: MMU: return page fault error code from permission_fault | Date | Tue, 8 Mar 2016 12:45:36 +0100 |
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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
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