[Xen-devel] [PATCH 2/2] efi/boot: make sure chosen mode is set even if firmware tell it is

[Igor Druzhinin <igor.druzhinin@xxxxxxxxxx>]

If a bootloader is using native driver instead of EFI GOP it might
reset graphics mode to be different from what firmware thinks it
currently is. Set chosen mode unconditionally to fix this possible
misalignment.

Observed with EFI GRUB2 compiled with all possible video drivers where
native drivers take priority over firmware.

Signed-off-by: Igor Druzhinin <igor.druzhinin@xxxxxxxxxx>
---
 xen/common/efi/boot.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/common/efi/boot.c b/xen/common/efi/boot.c
index 933db88..4067721 100644
--- a/xen/common/efi/boot.c
+++ b/xen/common/efi/boot.c
@@ -1052,7 +1052,7 @@ static void __init 
efi_set_gop_mode(EFI_GRAPHICS_OUTPUT_PROTOCOL *gop, UINTN gop
     UINTN info_size;
 
     /* Set graphics mode. */
-    if ( gop_mode < gop->Mode->MaxMode && gop_mode != gop->Mode->Mode )
+    if ( gop_mode < gop->Mode->MaxMode )
         gop->SetMode(gop, gop_mode);
 
     /* Get graphics and frame buffer info. */
-- 
2.7.4


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel