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authorGerd Hoffmann <kraxel@redhat.com>2014-02-26 11:51:25 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-02-28 15:31:39 -0800
commite5bb7425e5bae76c8950089a946edcba3e0540ab (patch)
tree4a59e9255ab2ad23be1ed81b28dd0470c18f2fef
parent9069fd54960304a7c941909cbccdf8df9c42b488 (diff)
downloadlinux-e5bb7425e5bae76c8950089a946edcba3e0540ab.tar.bz2
hyperv-fb: kick off efifb early
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> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/video/hyperv_fb.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/video/hyperv_fb.c b/drivers/video/hyperv_fb.c
index b7b3dd0ab675..e23392ec5af3 100644
--- a/drivers/video/hyperv_fb.c
+++ b/drivers/video/hyperv_fb.c
@@ -679,6 +679,8 @@ static int hvfb_getmem(struct fb_info *info)
if (gen2vm) {
info->apertures->ranges[0].base = screen_info.lfb_base;
info->apertures->ranges[0].size = screen_info.lfb_size;
+ remove_conflicting_framebuffers(info->apertures,
+ KBUILD_MODNAME, false);
} else {
info->apertures->ranges[0].base = pci_resource_start(pdev, 0);
info->apertures->ranges[0].size = pci_resource_len(pdev, 0);