Re: [PATCH] efi: avoid error message when booting under Xen

[Jürgen Groß <jgross@xxxxxxxx>]

On 28.06.20 10:50, Jürgen Groß wrote:
> Ping?
>
> On 10.06.20 16:10, Juergen Gross wrote:
> > efifb_probe() will issue an error message in case the kernel is booted
> > as Xen dom0 from UEFI as EFI_MEMMAP won't be set in this case. Avoid
> > that message by calling efi_mem_desc_lookup() only if EFI_PARAVIRT
> > isn't set.
> >
> > Fixes: 38ac0287b7f4 ("fbdev/efifb: Honour UEFI memory map attributes 
> > when mapping the FB")
> > Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
> > ---
> >   drivers/video/fbdev/efifb.c | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
> > index 65491ae74808..f5eccd1373e9 100644
> > --- a/drivers/video/fbdev/efifb.c
> > +++ b/drivers/video/fbdev/efifb.c
> > @@ -453,7 +453,7 @@ static int efifb_probe(struct platform_device *dev)
> >       info->apertures->ranges[0].base = efifb_fix.smem_start;
> >       info->apertures->ranges[0].size = size_remap;
> > -    if (efi_enabled(EFI_BOOT) &&
> > +    if (efi_enabled(EFI_BOOT) && !efi_enabled(EFI_PARAVIRT) &&
> >           !efi_mem_desc_lookup(efifb_fix.smem_start, &md)) {
> >           if ((efifb_fix.smem_start + efifb_fix.smem_len) >
> >               (md.phys_addr + (md.num_pages << EFI_PAGE_SHIFT))) {
In case I see no reaction from the maintainer for another week I'll take
this patch through the Xen tree.


Juergen