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Re: [Xen-devel] GSoC Introduction: Add Xen PV block device support to SeaBIOS

On Fri, 2011-05-06 at 11:25 +0100, Daniel Castro wrote:
> Good Day to all,
> My Name is Daniel Castro I am going to be your google coder for this summer 
> in:
> Add Xen PV block device support to SeaBIOS

Thanks Daniel and Welcome!

I'll be mentoring Daniel in this project.

(I've taken the liberty of CCing the SeaBIOS and qemu lists for their


> About Me:
> This is my first time in Google Summer of Code and my first time
> contributing to an open source project. I hope I will keep
> contributing for many years to come to Xen Hypervisor. I was born and
> raised in Colombia and currently a PhD candidate in South Korea. I
> worked with Citrix XenServer for several years, but never worked with
> the open source version, and I have big expectations for Xen.
> The Project:
> Currently Xen is using for HVM Virtual machines a version of BIOS
> called  ROMBIOS. Xen is going to introduce SeaBIOS (and upstream
> qemu), which happens to also be the qemu upstream and KVM BIOS of
> Choice. Then a modification to SeaBIOS hard drive abstract layer will
> be done to use the PV Drivers instead of the emulated device used in
> qemu-dm.
> Once SeaBIOS is in place my work starts as follows:
> We are going to provide PV frontend drivers for SeaBIOS in order to
> discourage the use of the emulated device. Removing the emulated
> device also removes the subtle confusion that can arise from booting
> from one device (emulated) but (apparently) running from another (PV
> frontend).  Around July we will present the community with a patch(s)
> that will enable to test this new functionality. Test for each kind of
> VM  (Windows HVM VMs) will be done and a compatibility matrix will be
> presented as part of the usual documentation.
> All activities and reports will be posted on:
> http://wiki.xensource.com/xenwiki/SeaBIOS
> All questions or/and suggestions are very welcome,
> Thank you,
> Daniel

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