[Patch v5 0/4] Enable SMEP feature support for kvm

From: "Yang, Wei Y" <wei.y.yang@intel.com>
To: Avi Kivity <avi@redhat.com>
Cc: "kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: [Patch v5 0/4] Enable SMEP feature support for kvm
Date: Mon, 30 May 2011 11:01:03 +0800	[thread overview]
Message-ID: <5D8008F58939784290FAB48F5497519844E92781DD@shsmsx502.ccr.corp.intel.com> (raw)

This patchset enables a new CPU feature SMEP (Supervisor Mode Execution
Protection) in KVM. SMEP prevents kernel from executing code in application.
Updated Intel SDM describes this CPU feature. The document will be 
published soon.

This patchset is based on Fenghua's SMEP patch series, as referred by:
https://lkml.org/lkml/2011/5/17/523

changes since v4:
	Update patch 1/4 comment
	Change PT_USER_MASK to ACC_USER_MASK

changes since v3:
	Add SMEP bit in CR4_RESERVED_BITS while removing cr4_reserved_bits;
	Mask CPUID leaf 7 ebx against host capability word9 in do_cpuid_ent;

Changes since v2: 
	add instruction fetch checking when walking guest page table.

---
 arch/x86/include/asm/kvm_host.h |    2 +-
 arch/x86/kvm/paging_tmpl.h      |    9 ++++++++-
 arch/x86/kvm/x86.c              |   22 +++++++++++++++++++---
 3 files changed, 28 insertions(+), 5 deletions(-)