linux-kernel - [PATCH v2 0/8] KVM: x86: enable cflushopt/clwb/pcommit and simplify code

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Date:	Wed,  9 Sep 2015 14:05:49 +0800
From:	Xiao Guangrong <guangrong.xiao@...ux.intel.com>
To:	pbonzini@...hat.com
Cc:	gleb@...nel.org, mtosatti@...hat.com, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Xiao Guangrong <guangrong.xiao@...ux.intel.com>
Subject: [PATCH v2 0/8] KVM: x86: enable cflushopt/clwb/pcommit and simplify code

Changelog:
Thanks for Paolo's review, there are the changes in v2:
- use WARN_ON(1) instead of BUG() if PCOMMIT-exit happend for L1 guest
- drop set_clear_2nd_exec_ctrl() and use vmcs_{set,clear}_bits  instead
- improve commit log and adjust code style

This pachset enables clfushopt, clwb and pcommit instructions for guest which
are used by NVDIMM.

The specification locates at:
https://software.intel.com/sites/default/files/managed/0d/53/319433-022.pdf

patch 1 and patch 2 enable these three instructions for guest and other patches
simplify current VMX code

Xiao Guangrong (8):
  KVM: x86: allow guest to use cflushopt and clwb
  KVM: x86: add pcommit support
  KVM: VMX: drop rdtscp_enabled check in prepare_vmcs02()
  KVM: VMX: simplify rdtscp handling in vmx_cpuid_update()
  KVM: VMX: simplify invpcid handling in vmx_cpuid_update()
  KVM: VMX: unify SECONDARY_VM_EXEC_CONTROL update
  KVM: VMX: clean up bit operation on SECONDARY_VM_EXEC_CONTROL
  KVM: VMX: drop rdtscp_enabled field

 arch/x86/include/asm/vmx.h      |   2 +-
 arch/x86/include/uapi/asm/vmx.h |   4 +-
 arch/x86/kvm/cpuid.c            |   2 +-
 arch/x86/kvm/cpuid.h            |  16 +++++++
 arch/x86/kvm/vmx.c              | 103 ++++++++++++++++++----------------------
 5 files changed, 67 insertions(+), 60 deletions(-)

-- 
2.4.3

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