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Re: [Qemu-devel] [PATCH 4/4] hw/i386/pc: use PVH option rom


From: Stefano Garzarella
Subject: Re: [Qemu-devel] [PATCH 4/4] hw/i386/pc: use PVH option rom
Date: Mon, 14 Jan 2019 10:48:44 +0100

On Fri, Jan 11, 2019 at 5:34 PM Stefan Hajnoczi <address@hidden> wrote:
>
> On Fri, Jan 11, 2019 at 02:18:36PM +0100, Stefano Garzarella wrote:
> > Use pvh.bin option rom when we are booting an uncompressed
> > kernel using the x86/HVM direct boot ABI.
> >
> > Signed-off-by: Stefano Garzarella <address@hidden>
> > Based-on: <address@hidden>
> > ---
> >  hw/i386/pc.c | 4 ++++
> >  1 file changed, 4 insertions(+)
> >
> > diff --git a/hw/i386/pc.c b/hw/i386/pc.c
> > index 06bce6a101..deab8a2816 100644
> > --- a/hw/i386/pc.c
> > +++ b/hw/i386/pc.c
> > @@ -1005,6 +1005,10 @@ static void load_linux(PCMachineState *pcms,
> >              fw_cfg_add_bytes(fw_cfg, FW_CFG_SETUP_DATA,
> >                               header, sizeof(header));
> >
> > +            option_rom[nb_option_roms].bootindex = 0;
> > +            option_rom[nb_option_roms].name = "pvh.bin";
> > +            nb_option_roms++;
> > +
>
> xen_load_linux() has the following:
>
>   assert(!strcmp(option_rom[i].name, "linuxboot.bin") ||
>          !strcmp(option_rom[i].name, "linuxboot_dma.bin") ||
>          !strcmp(option_rom[i].name, "multiboot.bin"));
>
> I wonder if it needs to be updated for pvh.bin?

Yeah! I think we need to add pvh.bin on the assert in xen_load_linux().

Thanks for catching this,
Stefano



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