Re: [Xen-devel] [PATCH v1 02/12] xen/hvmlite: Factor out common kernel init code

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 01/22/2016 06:01 PM, Luis R. Rodriguez wrote:
> On Fri, Jan 22, 2016 at 04:35:48PM -0500, Boris Ostrovsky wrote:
> > HVMlite guests (to be introduced in subsequent patches) share most
> > of the kernel initialization code with PV(H).
> >
> > Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
> > ---
> >   arch/x86/xen/enlighten.c |  225 ++++++++++++++++++++++++----------------------
> >   1 files changed, 119 insertions(+), 106 deletions(-)
> >
> > diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
> > index d09e4c9..2cf446a 100644
> > --- a/arch/x86/xen/enlighten.c
> > +++ b/arch/x86/xen/enlighten.c
> Whoa, I'm lost, its hard for me to tell what exactly stayed and what
> got pulled into a helper, etc. Is there a possibility to split this
> patch in 2 somehow to make the actual functional changes easier to
> read? There are too many changes here and I just can't tell easily
> what's going on.

The only real changes that this patch introduces is it reorders some of 
the operations that used to be in xen_start_kernel(). This is done so 
that in the next patch when we add hvmlite we can easily put those 
specific to PV(H) inside 'if (!xen_hvm_domain())'. I probably should 
have said so in the commit message.
It is indeed difficult to review but I don't see how I can split this. 
Even if I just moved it (without reordering) it would still be hard to read.
-boris

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