Re: [PATCH v5 6/9] libxc: create unmapped initrd in domain builder if supported

[Ian Campbell <ian.campbell@citrix.com>]

On Mon, 2015-11-30 at 11:47 +0100, Juergen Gross wrote:
> On 30/11/15 11:34, Ian Campbell wrote:
> > On Mon, 2015-11-30 at 11:23 +0100, Juergen Gross wrote:
> > > On 30/11/15 11:20, Wei Liu wrote:
> > > > On Thu, Nov 26, 2015 at 08:35:02AM +0100, Juergen Gross wrote:
> > > > >  
> > > > >      /* initrd parameters as specified in start_info page */
> > > > > -    unsigned long initrd_start;
> > > > > -    unsigned long initrd_len;
> > > > > +    uint64_t initrd_start;
> > > > > +    uint64_t initrd_len;
> > > > >  
> > > > 
> > > > I think these should be of type xen_vaddr_t. Doesn't make a
> > > > difference
> > > > in the end though.
> > > 
> > > xen_vaddr_t seems not to be appropriate. It can be either a virtual
> > > address or a pfn.
> > 
> > Did you mean a virtual address or a physical _address_? Potentially
> > mixing
> > addresses and frame numbers in a single variable seems liable to be
> > confusing, at best.
> 
> No, it's really a pfn. And this is part of the stable interface between
> hypervisor and the pv-domU since more than 5 years now.

Including the virtual address bit?

That's a shame.

Ian.

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