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Subject[PATCH v4 2/2] hyperv-fb: kick off efifb early
Date
Remove firmware framebuffer before initializing hyperv-fb.  Needed
on gen2 virtual machines. Letting register_framebuffer handle the
switchover results in efifb still being active while hyperv graphics
are initialized, which in turn can make the linux kernel hang.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
drivers/video/hyperv_fb.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/video/hyperv_fb.c b/drivers/video/hyperv_fb.c
index b7b3dd0..1b11886 100644
--- a/drivers/video/hyperv_fb.c
+++ b/drivers/video/hyperv_fb.c
@@ -683,6 +683,7 @@ static int hvfb_getmem(struct fb_info *info)
info->apertures->ranges[0].base = pci_resource_start(pdev, 0);
info->apertures->ranges[0].size = pci_resource_len(pdev, 0);
}
+ remove_conflicting_framebuffers(info->apertures, KBUILD_MODNAME, false);

info->fix.smem_start = par->mem.start;
info->fix.smem_len = screen_fb_size;
--
1.8.3.1


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