On 09/02/2009 06:38 PM, oritw@xxxxxxxxxx wrote:
The following patches implement nested VMX support. The patches enable a guest
to use the VMX APIs in order to run its own nested guest (i.e., enable running
other hypervisors which use VMX under KVM). The current patches support running
Linux under a nested KVM using shadow page table (with bypass_guest_pf
disabled). SMP support was fixed. Reworking EPT support to mesh cleanly with
the current shadow paging design per Avi's comments is a work-in-progress.
The current patches only support a single nested hypervisor, which can only run
a single guest (multiple guests are work in progress). Only 64-bit nested
hypervisors are supported.
Additional patches for running Windows under nested KVM, and Linux under nested
VMware server(!), are currently running in the lab. We are in the process of
forward-porting those patches to -tip.
This patches were written by:
Orit Wasserman, oritw@xxxxxxxxxx
Ben-Ami Yassor, benami@xxxxxxxxxx
Abel Gordon, abelg@xxxxxxxxxx
Muli Ben-Yehuda, muli@xxxxxxxxxx
With contributions by:
Anthony Liguori, aliguori@xxxxxxxxxx
Mike Day, mmday@xxxxxxxxxx
This work was inspired by the nested SVM support by Alexander Graf and Joerg
Roedel.
Changes since v1:
SMP support.
Split into 6 smaller patches.
Use nested_vmx structure for nested parameters.
Use Array for shadow VMCS offsets.
Thanks for splitting, much easier to review. As I come to understand
the code, you'll get better reviews.
Patch 6 didn't make it to the list.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
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