linux-kernel - [PATCH 0/6] KVM: SVM: Wrap access to intercept masks into functions

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Date:	Tue, 30 Nov 2010 18:03:55 +0100
From:	Joerg Roedel <joerg.roedel@....com>
To:	Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>
CC:	<kvm@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 0/6] KVM: SVM: Wrap access to intercept masks into functions

Hi Avi, Hi Marcelo,

this patchset wraps the access to the intercept vectors in the VMCB into
specific functions. There are two reasons for this:

	1) In the nested-svm code the effective intercept masks are
	   calculated from the host and the guest intercept masks.
	   Whenever KVM changes the host intercept mask while the VCPU
	   is in guest-mode the effective intercept masks need to be
	   re-calculated. This is nicely wrapped into these functions
	   now and makes the code more robust.

	2) These changes make the implementation of the upcoming
	   vmcb-clean-bits feature easier and also more robust (which
	   was the main reason for writing this patchset).

These patches were developed on-top of the patch-set I sent yesterday. I
tested these patches with various guests (Windows-64, Linux 32,32e and
64 as well as with nested-svm).

Regards,

	Joerg

Summary:

 arch/x86/include/asm/svm.h |   44 +++--
 arch/x86/kvm/svm.c         |  391 ++++++++++++++++++++++++--------------------
 2 files changed, 241 insertions(+), 194 deletions(-)

Joerg Roedel (6):
      KVM: SVM: Add function to recalculate intercept masks
      KVM: SVM: Add manipulation functions for CRx intercepts
      KVM: SVM: Add manipulation functions for DRx intercepts
      KVM: SVM: Add manipulation functions for exception intercepts
      KVM: SVM: Add manipulation functions for misc intercepts
      KVM: SVM: Use get_host_vmcb function in svm_get_msr for TSC


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