Re: [Xen-devel] Claim mode and HVM PoD interact badly

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Fri, Jan 10, 2014 at 03:16:25PM +0000, Ian Campbell wrote:
 [...]
 
> > diff --git a/tools/libxc/xc_hvm_build_x86.c b/tools/libxc/xc_hvm_build_x86.c
> > index 77bd365..65e9577 100644
> > --- a/tools/libxc/xc_hvm_build_x86.c
> > +++ b/tools/libxc/xc_hvm_build_x86.c
> > @@ -335,7 +335,12 @@ static int setup_guest(xc_interface *xch,
> >  
> >      /* try to claim pages for early warning of insufficient memory 
> > available */
> >      if ( claim_enabled ) {
> > -        rc = xc_domain_claim_pages(xch, dom, nr_pages - cur_pages);
> > +        unsigned long nr = nr_pages - cur_pages;
> > +
> > +        if ( pod_mode )
> > +            nr = target_pages - 0x20;
> 
> 0x20?
> 

128K VGA hole. :-)

Wei.

> > +
> > +        rc = xc_domain_claim_pages(xch, dom, nr);
> >          if ( rc != 0 )
> >          {
> >              PERROR("Could not allocate memory for HVM guest as we cannot 
> > claim memory!");
> 

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