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Re: [Xen-devel] [PATCH for-next 4/5] tools: load IPXE from standalone file



On Mon, Jun 04, 2018 at 02:47:57PM +0100, Anthony PERARD wrote:
> On Tue, May 15, 2018 at 07:22:42PM +0100, Wei Liu wrote:
> > diff --git a/tools/firmware/hvmloader/hvmloader.c 
> > b/tools/firmware/hvmloader/hvmloader.c
> > index f603f68ded..f546cfb3ab 100644
> > --- a/tools/firmware/hvmloader/hvmloader.c
> > +++ b/tools/firmware/hvmloader/hvmloader.c
> > @@ -368,7 +368,13 @@ int main(void)
> >  #ifdef ENABLE_ROMBIOS
> >      else if ( bios == &rombios_config )
> >      {
> > -        bios->bios_load(bios, NULL, 0);
> > +        const struct hvm_modlist_entry *ipxe;
> > +        uint32_t paddr = 0;
> > +
> > +        ipxe = get_module_entry(hvm_start_info, "ipxe");
> > +        if ( ipxe )
> > +            paddr = ipxe->paddr;
> > +        bios->bios_load(bios, (void*)paddr, 0 /* unused */);
> 
> I don't think it's a good idea to change the meaning of the arguments of
> bios_load(). For every other use of bios_load, the second argument is
> used at the address of the firmware to load. Here "ipxe" is an extra
> blob to load.

We either add more arguments to bios_load or repurpose the existing
one(s). I'm not too fussed with either option really.

Jan and Andrew, your opinion?

Wei.

> 
> -- 
> Anthony PERARD

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