* [PATCH] hyperv-fb: kick off efifb early
@ 2014-02-21 14:39 ` Gerd Hoffmann
0 siblings, 0 replies; 2+ messages in thread
From: Gerd Hoffmann @ 2014-02-21 14:39 UTC (permalink / raw)
To: linux-fbdev
Cc: linux-kernel, gregkh, kys, haiyangz, jasowang, Gerd Hoffmann,
Jean-Christophe Plagniol-Villard, Tomi Valkeinen,
open list:Hyper-V CORE AND...
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 f956cd9..3901ffe 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, "hyperv-fb", false);
info->fix.smem_start = par->mem.start;
info->fix.smem_len = screen_fb_size;
--
1.8.3.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH] hyperv-fb: kick off efifb early
@ 2014-02-21 14:39 ` Gerd Hoffmann
0 siblings, 0 replies; 2+ messages in thread
From: Gerd Hoffmann @ 2014-02-21 14:39 UTC (permalink / raw)
To: linux-fbdev
Cc: linux-kernel, gregkh, kys, haiyangz, jasowang, Gerd Hoffmann,
Jean-Christophe Plagniol-Villard, Tomi Valkeinen,
open list:Hyper-V CORE AND...
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 f956cd9..3901ffe 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, "hyperv-fb", false);
info->fix.smem_start = par->mem.start;
info->fix.smem_len = screen_fb_size;
--
1.8.3.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
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2014-02-21 14:39 [PATCH] hyperv-fb: kick off efifb early Gerd Hoffmann
2014-02-21 14:39 ` Gerd Hoffmann
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