On Thu, Sep 12, 2019 at 09:59:01AM +0200, Heinrich Schuchardt wrote:
> On 9/12/19 6:52 AM, AKASHI Takahiro wrote:
> > It would be better to give a user-friendly text to a host device
> > on sandbox instead of just dumping its guid.
> >
> > => host bind 0 /opt/disk/uboot_sandbox_fat.img
> > => efi devices
> > Device Device Path
> > ================ ====================
> > 0000000015c1f3a0 /VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b)
> > 0000000015c20f00 /VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b)/Hostdev(0)
> >
> > Signed-off-by: AKASHI Takahiro <takahiro.aka...@linaro.org>
> > ---
> > lib/efi_loader/efi_device_path_to_text.c | 5 +++++
> > 1 file changed, 5 insertions(+)
> >
> > diff --git a/lib/efi_loader/efi_device_path_to_text.c
> > b/lib/efi_loader/efi_device_path_to_text.c
> > index 96fd08971b73..40a06b70e08a 100644
> > --- a/lib/efi_loader/efi_device_path_to_text.c
> > +++ b/lib/efi_loader/efi_device_path_to_text.c
> > @@ -62,6 +62,11 @@ static char *dp_hardware(char *s, struct efi_device_path
> > *dp)
> > case DEVICE_PATH_SUB_TYPE_VENDOR: {
> > struct efi_device_path_vendor *vdp =
> > (struct efi_device_path_vendor *)dp;
> > +#ifdef CONFIG_SANDBOX
> > + if (!guidcmp(&vdp->guid, &efi_guid_host_dev))
> > + s += sprintf(s, "Hostdev(%d)", vdp->vendor_data[0]);
>
> This does not conform to the UEFI spec.
Okay, so I'd like to change the format again.
Instead of 'Vendor' subtype, use 'Controller' subtype.
This way, the example above can be seen as:
0000000015c1f3a0 /VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b)
0000000015c20f00 /VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b)/Ctrl(0)
Looks nice, doesn't it?
-Takahiro Akashi
> The purpose of the sandbox is testing. What would make sense to me is
> checking in a Python test that The VenHw() output contains the GUID and
> the drive number.
>
> Best regards
>
> Heinrich
>
> > + else
> > +#endif
> > s += sprintf(s, "VenHw(%pUl)", &vdp->guid);
> > break;
> > }
> >
>
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