| Message ID | 20200710142253.28070-1-jgross@suse.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2] efi: avoid error message when booting under Xen | expand |
On Fri, 10 Jul 2020 at 17:24, Juergen Gross <jgross@suse.com> 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_MEMMAP is set. > > Fixes: 38ac0287b7f4 ("fbdev/efifb: Honour UEFI memory map attributes when mapping the FB") > Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> > --- > 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..e57c00824965 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_MEMMAP) && > !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))) { > -- > 2.26.2 >
On 7/10/20 4:22 PM, 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_MEMMAP is set. > > Fixes: 38ac0287b7f4 ("fbdev/efifb: Honour UEFI memory map attributes when mapping the FB") > Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics > --- > 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..e57c00824965 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_MEMMAP) && > !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))) { >
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c index 65491ae74808..e57c00824965 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_MEMMAP) && !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))) {
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_MEMMAP is set. Fixes: 38ac0287b7f4 ("fbdev/efifb: Honour UEFI memory map attributes when mapping the FB") Signed-off-by: Juergen Gross <jgross@suse.com> --- drivers/video/fbdev/efifb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)