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[Xen-devel] [OSSTEST Nested PATCH v8 0/7] Introduction of netsted HVM test job



This patch set adds nested HVM test case for osstest.
In this test case, a Xen hypervisor (L1) runs on top of another Xen 
hypervisor (L0). 
Upon L1 hypervisor, we will then create a nested guest (L2), and test if the 
Linux guest can then be installed and run well.
About nested Xen virtualization, 
refer to http://wiki.xenproject.org/wiki/Nested_Virtualization_in_Xen.

Test steps
        0. To run osstest in standalone mode, write a config file in
           '~/.xen-osstest/config', and then create a standalone.config file 
           to define 'TREE_LINUX', 'REVISION_LINUX' which will be used for
           nested test. The directory path of 'Debian Images' could be defined 
           in '~/.xen-osstest/config'. 
        1. run 'build-amd64' job and then 'build-amd64-pvops', to prepare xen
           installation tarball and hvm guest kernel.
        2. run 'test-amd64-amd6-nested' job, it does following:
                a. invoke test step of 'ts-debain-hvm-install' to install 
                   a normal HVM guest
                b. invoke test step of 'ts-nested-setup' to make some
                   appropriate runvars which selecthost() would recognise and
                   prepare the configurations for installing L2 guest VM. 
                c. invoke test step of 'ts-xen-install' to install xen on 
                   the normal guest, alter it into a L1 hypervisor
                d. invoke test step of 'ts-debain-hvm-install' again, but 
                   take the L1 hypervisor as host, install the L2 guest on it
                e. invoke test step of 'ts-guest-stop', stop L2 guest.
                f. invoke test step of 'ts-guest-destroy' to destroy L1 guest.

This patch set reuse 'ts-debian-hvm-install' for both L1 installation and L2
installation, define 'nestedl1' and 'nestedl2' as L1 and L2's hostname,
define 'nested_l1 as L1's host identity.
It also reuses 'ts-xen-install' with L1's hostname 'nestedl1' input parameter 
to differentiate from L0 Xen installation.
This patch series has been tested on test machines of amd64 arch,
Debian-7.2.0-amd64 as guests OS, with hvm domain0 of Linux kernel 3.18.5, 
in standalone mode.
Also, we use linux-stable tree as domain0 kernel source.
----------------------------------------------------------------
longtao.pang (7):
      parsing grub which has 'submenu' primitive
      Changes to support '/boot' leading paths of kernel, xen, in grub
      Edit some APIs in TestSupport.pm for nested test
      Changes on test step of Debian hvm guest install
      Add new script to customize nested test configuration
      Compose the main recipe of nested test job
      Add test job for nest test case

 Osstest/Debian.pm      |   21 ++++++++++++++++-----
 Osstest/TestSupport.pm |    8 +++++++-
 make-flight            |   20 ++++++++++++++++++++
 sg-run-job             |   11 +++++++++++
 ts-debian-hvm-install  |    9 ++++++---
 ts-nested-setup        |   52 
++++++++++++++++++++++++++++++++++++++++++++++++++++
 6 files changed, 112 insertions(+), 9 deletions(-)
 create mode 100755 ts-nested-setup


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