Re: [Xen-users] suggest improvements in my doc to compile Xen from sources

[Bruce Edge <bruce.edge@xxxxxxxxx>]

On Sat, Aug 21, 2010 at 1:24 PM, George Shuklin <george.shuklin@xxxxxxxxx> wrote:

PV_ops right now suck due memory hotplug problems. xen-linux is much
better choice.

How is memory hotplug a problem with pv-ops?
Can you give an example of what doesn't work?

-Bruce
 

В Сбт, 21/08/2010 в 09:59 +0530, Tapas Mishra пишет:

> Hi,
> I am writing a small doc for people new to Xen.
> to be able to compile Xen from sources on Ubuntu.
>
> Please  suggest some improvements for this how to or mistakes that you
> can point out.
>
> There is a technique of virtualization known as Xen and a hypervisor
> known as Xen.
> Like you have Firefox,Open Office,VLC and other softwares on your
> computer similary
> there is a software known as Xen.
>
> Technically it is  a hypervisor.Which runs in your computer
> and this is what will be able to help you to install Guest Operating
> Systems on your computer.
>
> The term Xen is often confusing to newbies since the
> technique of virtualization is also known as Xen and the
> hypervisor is also known as Xen.
>
> To be able to use Xen you need to have a system which has Linux installed.
> Install Xen on it.
>
> 1) Understand what is the difference between PVM and HVM.
> 2) Understand how to create guest operating system on Xen (hypervisor)
>
> This doc is for those people who want to compile the hypervisor Xen
> for example you might have ever used vlc media player on your Linux box.
>
> There you install it as
>
>       yum install vlc or
>       aptitude install vlc
>
> If you download vlc from videolan website and do some steps as
>
>       ./configure
>       make
>       make install
>       then this is what is known as compiling from sources.
>
>       This doc will describe this procedure.
>
>
> So to begin with get a Linux computer.
>
> When I began I used a P4 with 256 MB RAM.
> Technicall Xen can run in this low configuration but you will
>  save a  lot of troubles
> if you use a machine with higher RAM.
>
>
>
> =======================================================================================
>
> sudo apt-get install iproute bridge-utils gcc make gettext
> sudo apt-get install libcurl4-openssl-dev è openssl
> sudo apt-get install python-dev zlib1g-dev bcc libsdl-dev pciutils-dev
> è zlib
>
> First we will compile latest XEN Hypervisor from source.
>
> Go to http://www.xen.org/products/xen_source.html and download the
> latest XEN hypervisor from here.
>
> My hardware specifications uname -a
>
> Linux tapas-laptop 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17
> 01:57:59 UTC 2009 i686 GNU/Linux
>
>
> 1. mkdir /home/tapas/xen
> 2. cd /home/tapas/xen
> 3. tar -xzf xen-4.0.0
> 4. cd xen-4.0.0
> 5. make xen
> 6. make install-xen
> 7. make tools
> 8. make install-tools
>
> Build Vanilla kernel
> Now we will build th PV_Ops Kernel. The Vanilla kernel source will be
> downloaded from Jeremy's tree. Jeremy's git tree on kernel.org
> contains the pv_ops dom0 patches. If we use Jeremy's tree then we do
> not any extra patches to bind XEN with kernel source.
>
> 1. mkdir /home/tapas/linux
> 2. cd /home/tapas/linux
> 3. git clone git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git
> 4. linux-2.6-xen
> 5. cd linux-2.6-xen
> 6. git checkout origin/xen/master -b xen/master
> 7. make menuconfig [see Note below]
> 8. make-kpkg clean
> 9. CONCURRENCY_LEVEL=N fakeroot make-kpkg --initrd
> --append-to-version=-custom kernel_image kernel_headers
> 10. This will make the Ubuntu packages in the parent directory which
> you can install
>
> Note: Please choose the following xen specific optiions in kernel configuration.
>
> Processor type and features ---> Subarchitecture Type (PC-compatible)
> ---> (X) Enable Xen compatible kernel
> Bus options (PCI etc.) ---> [*] PCI support
> [*] Xen PCI Frontend
> [ ] Xen PCI Frontend
> Debugging (NEW)
> Device Drivers ---> XEN ---> [*] Privileged Guest (domain 0)
> <*> Backend driver support (NEW)
> <*> Block-device
> backend driver (NEW)
> <*> Block-device tap
> backend driver (NEW)
> <*> Network-device
> backend driver (NEW)
> (8) Maximum
> simultaneous transmit requests (as a power of 2) (NEW)
> [ ] Pipelined
> transmitter (DANGEROUS) (NEW)
> < > Network-device
> loopback driver (NEW)
> <*> PCI-device
> backend driver (NEW)
> PCI Backend
> Mode (Virtual PCI) --->
> [ ] PCI
> Backend Debugging (NEW)
> < >
> TPM-device backend driver (NEW)
> SCSI backend driver (NEW)
> < > TPM-device backend driver (NEW)
> SCSI backend driver (NEW)
> Block-device frontend driver
> Network-device frontend driver
> Network-device frontend driver
> acceleration for Solarflare NICs (NEW)
> SCSI frontend driver (NEW)
> <*> User-space granted page access driver (NEW)
> <*> Framebuffer-device frontend driver (NEW)
> <*> Keyboard-device frontend driver (NEW)
> [*] Disable serial port drivers (NEW)
> <*> Export Xen attributes in sysfs (NEW)
> (256) Number of guest devices (NEW)
> Xen version compatibility (4.0.0
> and later) --->
>
> After xen confiuration, please make sure that .config has the
> following parameter configuration:
>
> * CONFIG_XEN=y
> * CONFIG_XEN_MAX_DOMAIN_MEMORY=32
> * CONFIG_XEN_SAVE_RESTORE=y
> * CONFIG_XEN_DOM0=y
> * CONFIG_XEN_PRIVILEGED_GUEST=y
> * CONFIG_XEN_PCI=y
> * CONFIG_PCI_XEN=y
> * CONFIG_XEN_BLKDEV_FRONTEND=m
> * CONFIG_NETXEN_NIC=m
> * CONFIG_XEN_NETDEV_FRONTEND=m
> * CONFIG_XEN_KBDDEV_FRONTEND=m
> * CONFIG_HVC_XEN=y
> * CONFIG_XEN_FBDEV_FRONTEND=m
> * CONFIG_XEN_BALLOON=y
> * CONFIG_XEN_SCRUB_PAGES=y
> * CONFIG_XEN_DEV_EVTCHN=y
> * CONFIG_XEN_BACKEND=y
> * CONFIG_XEN_BLKDEV_BACKEND=y
> * CONFIG_XEN_NETDEV_BACKEND=y
> * CONFIG_XENFS=y
>
> * CONFIG_XEN_NETDEV_BACKEND=y
> * CONFIG_XENFS=y
> * CONFIG_XEN_COMPAT_XENFS=y
> * CONFIG_XEN_XENBUS_FRONTEND=m
> Note: Please choose the following xen specific optiions in kernel configuration.
>
> Processor type and features ---> Subarchitecture Type (PC-compatible)
> ---> (X) Enable Xen compatible kernel
> Bus options (PCI etc.) ---> [*] PCI support
> [*] Xen PCI Frontend
> [ ] Xen PCI Frontend
> Debugging (NEW)
> Device Drivers ---> XEN ---> [*] Privileged Guest (domain 0)
> <*> Backend driver support (NEW)
> <*> Block-device
> backend driver (NEW)
> <*> Block-device tap
> backend driver (NEW)
> <*> Network-device
> backend driver (NEW)
> (8) Maximum
> simultaneous transmit requests (as a power of 2) (NEW)
> [ ] Pipelined
> transmitter (DANGEROUS) (NEW)
> < > Network-device
> loopback driver (NEW)
> <*> PCI-device
> backend driver (NEW)
> PCI Backend
> Mode (Virtual PCI) --->
> [ ] PCI
> Backend Debugging (NEW)
> < >
> TPM-device backend driver (NEW)
> SCSI backend driver (NEW)
> < > TPM-device backend driver (NEW)
> SCSI backend driver (NEW)
> Block-device frontend driver
> Network-device frontend driver
> Network-device frontend driver
> acceleration for Solarflare NICs (NEW)
> SCSI frontend driver (NEW)
> <*> User-space granted page access driver (NEW)
> <*> Framebuffer-device frontend driver (NEW)
> <*> Keyboard-device frontend driver (NEW)
> [*] Disable serial port drivers (NEW)
> <*> Export Xen attributes in sysfs (NEW)
> (256) Number of guest devices (NEW)
> Xen version compatibility (4.0.0
> and later) --->
>
> After xen confiuration, please make sure that .config has the
> following parameter configuration:
>
> * CONFIG_XEN=y
> * CONFIG_XEN_MAX_DOMAIN_MEMORY=32
> * CONFIG_XEN_SAVE_RESTORE=y
> * CONFIG_XEN_DOM0=y
> * CONFIG_XEN_PRIVILEGED_GUEST=y
> * CONFIG_XEN_PCI=y
> * CONFIG_PCI_XEN=y
> * CONFIG_XEN_BLKDEV_FRONTEND=m
> * CONFIG_NETXEN_NIC=m
> * CONFIG_XEN_NETDEV_FRONTEND=m
> * CONFIG_XEN_KBDDEV_FRONTEND=m
> * CONFIG_HVC_XEN=y
> * CONFIG_XEN_FBDEV_FRONTEND=m
> * CONFIG_XEN_BALLOON=y
> * CONFIG_XEN_SCRUB_PAGES=y
> * CONFIG_XEN_DEV_EVTCHN=y
> * CONFIG_XEN_BACKEND=y
> * CONFIG_XEN_BLKDEV_BACKEND=y
> * CONFIG_XEN_NETDEV_BACKEND=y
> * CONFIG_XENFS=y
>
> * CONFIG_XEN_NETDEV_BACKEND=y
> * CONFIG_XENFS=y
> * CONFIG_XEN_COMPAT_XENFS=y
> * CONFIG_XEN_XENBUS_FRONTEND=m
>
>
> Hope that will help.

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