Re: [PATCH 0/24] Nested VMX, v5

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On Sunday 13 June 2010 20:22:33 Nadav Har'El wrote:
> Hi Avi,
> 
> This is a followup of our nested VMX patches that Orit Wasserman posted in
> December. We've addressed most of the comments and concerns that you and
> others on the mailing list had with the previous patch set. We hope you'll
> find these patches easier to understand, and suitable for applying to KVM.
> 
> 
> The following 24 patches implement nested VMX support. The patches enable a
> guest to use the VMX APIs in order to run its own nested guests. I.e., it
> allows running hypervisors (that use VMX) under KVM. We describe the theory
> behind this work, our implementation, and its performance characteristics,
> in IBM Research report H-0282, "The Turtles Project: Design and
> Implementation of Nested Virtualization", available at:
> 
> 	http://bit.ly/a0o9te
> 
> The current patches support running Linux under a nested KVM using shadow
> page table (with bypass_guest_pf disabled). They support multiple nested
> hypervisors, which can run multiple guests. Only 64-bit nested hypervisors
> are supported. SMP is supported. Additional patches for running Windows
> under nested KVM, and Linux under nested VMware server, and support for
> nested EPT, are currently running in the lab, and will be sent as
> follow-on patchsets.

Hi Nadav

Do you have a tree or code base and instruction to try this patchset? I've spent 
some time on it, but can't get it right...

--
regards
Yang, Sheng

> 
> These patches were written by:
>      Abel Gordon, abelg <at> il.ibm.com
>      Nadav Har'El, nyh <at> il.ibm.com
>      Orit Wasserman, oritw <at> il.ibm.com
>      Ben-Ami Yassor, benami <at> il.ibm.com
>      Muli Ben-Yehuda, muli <at> il.ibm.com
> 
> With contributions by:
>      Anthony Liguori, aliguori <at> us.ibm.com
>      Mike Day, mdday <at> us.ibm.com
> 
> This work was inspired by the nested SVM support by Alexander Graf and
> Joerg Roedel.
> 
> 
> Changes since v4:
> * Rebased to the current KVM tree.
> * Support for lazy FPU loading.
> * Implemented about 90 requests and suggestions made on the mailing list
>   regarding the previous version of this patch set.
> * Split the changes into many more, and better documented, patches.
> 
> --
> Nadav Har'El
> IBM Haifa Research Lab
> --
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