Re: [Xen-devel] [PATCH] add upstream GRUB to the Xen build system

[Fabio Fantoni <fabio.fantoni@xxxxxxx>]

Il 13/03/2015 17:24, David Vrabel ha scritto:
> On 13/03/15 16:02, Stefano Stabellini wrote:
> > On Fri, 13 Mar 2015, David Vrabel wrote:
> > > On 13/03/15 15:33, Stefano Stabellini wrote:
> > > > Clone and build upstream GRUB to generate x86_64 and i386 pvgrub2
> > > > binaries. See Ian's blog post for more information:
> > > Why?  If pvgrub2 is available on the system libxl should make use of it,
> > > but there doesn't seem to be a good reason for cloning and building yet
> > > another third-party project as part of the Xen build.
> > >
> > > At a minimum this needs a configure option to disable it.
> > It is the only way to boot grub2 pv guests securely.  More importantly
> > it is also the first step toward adding an osstest test for upstream
> > grub.
> osstest can clone and build grub if necessary, it doesn't need to be
> part of the Xen build.
I think that add upstream pvgrub2 build in xen is good but I think that 
is good add also all these things about:
- make build of it optional even if enabled by default
- make possible choose it from system binary instead build it (see 
seabios, upstream qemu and ovmf)
- make easy and fast select and use it from libxl in both cases, for 
example with bootloader="pvgrub2"
Thanks for any reply and sorry for my bad english.

> > Finally it will allow us to get rid of pvgrub1 in the future. As a
> > matter of fact I already have a patch to remove pvgrub, if the
> > maintainers feel that it is already the time I am happy to send it out.
> The majority of projects would handle this by listing grub 2.x as a
> requirement in the release notes or similar.
>
> David
>
>
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