[Xen-devel] Fwd: [PATCH 0/18] Nested Virtualization: Overview

[Christoph Egger <Christoph.Egger@xxxxxxx>]

Resending w/o documents. It seems to not get through to the list.


----------  Forwarded Message  ----------

Subject: [PATCH 0/18] Nested Virtualization: Overview
Date: Thursday 15 April 2010
From: Christoph Egger <Christoph.Egger@xxxxxxx>
To: xen-devel@xxxxxxxxxxxxxxxxxxx


Hi!

This patch series brings Nested Virtualization to Xen.
I have attached two documents Nested_Virtualization.pdf and XenNestedHVM.pdf.

The first describes how nested virtualization works in general and the latter
describes the xen implementation in detail.

The patch series:

patch 01: add nestedhvm guest config option to the tools
                  This is the only one patch touching the tools
patch 02: move viridian MSRs into the viridian header for use in an
                  other file added in patch 09.
patch 03: change local_event_delivery_* to take vcpu argument.
                  This prevents spurious xen crashes on guest shutdown/destroy
                  with nestedhvm enabled.
patch 04: obsolete gfn_to_mfn_current and remove it.
                  gfn_to_mfn_current is redundant to 
gfn_to_mfn(current->domain, ...)
                  This patch reduces the size of patch 17.
patch 05: hvm_set_cr0: Allow guest to switch into paged real mode.
                  This makes hvmloader boot when we use xen in xen.
patch 06: Move phys_table from struct domain to struct p2m_domain.
                  Combined with patch 17 and patch 18, this allows to run
                  nested guest with hap.
patch 07: Add data structures for nested virtualization.
patch 08: add nestedhvm function hooks, described in XenNestedHVM.pdf
patch 09: The heart of nested virtualization.
patch 10: Allow guest to enable SVM in EFER
patch 11: Propagate SVM cpuid feature bits to guest
patch 12: Emulate MSRs needed for nested virtualization
patch 13: Handle interrupts (generic part)
patch 14: SVM specific implementation for nested virtualization
patch 15: Handle interrupts (SVM specific)
patch 16: The piece of code that effectively turns nested virtualization on
patch 17: Change p2m infrastructure to operate with per-p2m instead
                  of per-domain. Combined with patch 06 and patch 18, this
                  allows to run nested guest with hap. 
patch 18: Handle nested pagefault to enable hap-on-hap


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