From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gerd Hoffmann Date: Mon, 24 Feb 2014 10:25:16 +0000 Subject: [PATCH v2 5/5] hyperv-fb: kick off efifb early Message-Id: <1393237516-28545-6-git-send-email-kraxel@redhat.com> List-Id: References: <1393237516-28545-1-git-send-email-kraxel@redhat.com> In-Reply-To: <1393237516-28545-1-git-send-email-kraxel@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-fbdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org, kys@microsoft.com, abgupta@microsoft.com, haiyangz@microsoft.com, jasowang@redhat.com, tomi.valkeinen@ti.com, Gerd Hoffmann , Jean-Christophe Plagniol-Villard , "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 --- 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 ec4b22c..b425951 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