[Qemu-devel] Re: [PATCH 07/10] ram_save_remaining() returns an uint64_t

[Anthony Liguori]

On 11/30/2010 01:21 AM, Paolo Bonzini wrote:
> On 11/30/2010 03:06 AM, Anthony Liguori wrote:
> > > -static ram_addr_t ram_save_remaining(void)
> > > +static uint64_t ram_save_remaining(void)
> > >   {
> > >       RAMBlock *block;
> > > -    ram_addr_t count = 0;
> > > +    uint64_t count = 0;
> > >
> > >       QLIST_FOREACH(block,&ram_list.blocks, next) {
> > >           ram_addr_t addr;
> >
> > No, it returns a count of bytes of ram which is a subset of ram_addr_t's
> > space.  The unit is definitely right here.
>
> It returns a count of pages, actually, which is a different unit.

Page size is just a fixed number in the ram_addr_t space.

Regards,

Anthony Liguori

>   For example, in practice it can fit in 32 bits even (though I'm not 
> saying we should make it uint32_t; we'd be dangerously close to the 
> limit for the guest sizes that Juan is handling).
>
> Paolo