Re: [Xen-devel] [PATCH] [PATCH v2] Add the bios option

[Attilio Rao <attilio.rao@xxxxxxxxxx>]

It seems I have still to learn using the patchbomb extension properly 
with mercurial :)
[Patch v2] Add the bios option to specify the bios to load.

Please note 2 things:
- I've used the name of 'OVMF' rather than adding the arch postfix 
because we are going to make this code arch-size agnostic (in another patch)
- Other seems missing in xl.cfg.pod5, like firmware_override

Signed-off-by: Attilio Rao <attilio.rao@xxxxxxxxxx>
---

Differences wih previous patch:
- Renamed bios_override option into bios
- Made internally the bios value as an enumeration
- Added the documentation for the bios option in xl.cfg.pod.5

On 24/02/12 18:24, Attilio Rao wrote:
> diff -r adcd6ab160fa -r 20ea6f881776 docs/man/xl.cfg.pod.5
> --- a/docs/man/xl.cfg.pod.5     Thu Feb 23 10:29:27 2012 +0000
> +++ b/docs/man/xl.cfg.pod.5     Fri Feb 24 18:19:56 2012 +0000
> @@ -430,6 +430,12 @@ accept the defaults for these options wh
>
>   =over 4
>
> +=item B<bios="STRING">
> +
> +Load the specified BIOS in HVMLOADER. By default, HVMLOADER will try
> +to do a guess about the BIOS to run, but sometimes it may be useful
> +to force a different one, like OVMF UEFI.
> +
>   =item B<pae=BOOLEAN>
>
>   Hide or expose the IA32 Physical Address Extensions. These extensions
> diff -r adcd6ab160fa -r 20ea6f881776 tools/libxl/libxl_create.c
> --- a/tools/libxl/libxl_create.c        Thu Feb 23 10:29:27 2012 +0000
> +++ b/tools/libxl/libxl_create.c        Fri Feb 24 18:19:56 2012 +0000
> @@ -89,6 +89,7 @@ int libxl_init_build_info(libxl_ctx *ctx
>       case LIBXL_DOMAIN_TYPE_HVM:
>           b_info->video_memkb = 8 * 1024;
>           b_info->u.hvm.firmware = NULL;
> +        b_info->u.hvm.bios = 0;
>           b_info->u.hvm.pae = 1;
>           b_info->u.hvm.apic = 1;
>           b_info->u.hvm.acpi = 1;
> diff -r adcd6ab160fa -r 20ea6f881776 tools/libxl/libxl_dm.c
> --- a/tools/libxl/libxl_dm.c    Thu Feb 23 10:29:27 2012 +0000
> +++ b/tools/libxl/libxl_dm.c    Fri Feb 24 18:19:56 2012 +0000
> @@ -66,6 +66,8 @@ const char *libxl__domain_device_model(l
>   static const char *libxl__domain_bios(libxl__gc *gc,
>                                   const libxl_domain_build_info *info)
>   {
> +    if (info->u.hvm.bios)
> +       return libxl_bios_types_to_string(info->u.hvm.bios);
>       switch (info->device_model_version) {
>       case 1: return "rombios";
>       case 2: return "seabios";
> diff -r adcd6ab160fa -r 20ea6f881776 tools/libxl/libxl_types.idl
> --- a/tools/libxl/libxl_types.idl       Thu Feb 23 10:29:27 2012 +0000
> +++ b/tools/libxl/libxl_types.idl       Fri Feb 24 18:19:56 2012 +0000
> @@ -99,6 +99,12 @@ libxl_timer_mode = Enumeration("timer_mo
>       (3, "one_missed_tick_pending"),
>       ])
>
> +libxl_bios_types = Enumeration("bios_types", [
> +    (1, "rombios"),
> +    (2, "seabios"),
> +    (3, "ovmf"),
> +    ])
> +
>   #
>   # Complex libxl types
>   #
> @@ -228,6 +234,7 @@ libxl_domain_build_info = Struct("domain
>
>       ("u", KeyedUnion(None, libxl_domain_type, "type",
>                   [("hvm", Struct(None, [("firmware", string),
> +                                       ("bios", libxl_bios_types),
>                                          ("pae", bool),
>                                          ("apic", bool),
>                                          ("acpi", bool),
> diff -r adcd6ab160fa -r 20ea6f881776 tools/libxl/xl_cmdimpl.c
> --- a/tools/libxl/xl_cmdimpl.c  Thu Feb 23 10:29:27 2012 +0000
> +++ b/tools/libxl/xl_cmdimpl.c  Fri Feb 24 18:19:56 2012 +0000
> @@ -704,6 +704,12 @@ static void parse_config_data(const char
>
>           xlu_cfg_replace_string (config, "firmware_override",
>                                   &b_info->u.hvm.firmware, 0);
> +        if (!xlu_cfg_get_string(config, "bios",&buf, 0)&&
> +            libxl_bios_types_from_string(buf,&b_info->u.hvm.bios)) {
> +                fprintf(stderr, "ERROR: invalid value \"%s\" for \"bios\"\n",
> +                    buf);
> +                exit (1);
> +        }
>           if (!xlu_cfg_get_long (config, "pae",&l, 0))
>               b_info->u.hvm.pae = l;
>           if (!xlu_cfg_get_long (config, "apic",&l, 0))
>
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