lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Mon, 24 Feb 2014 14:17:11 +0100
From:	Gerd Hoffmann <kraxel@...hat.com>
To:	linux-fbdev@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org,
	kys@...rosoft.com, abgupta@...rosoft.com, haiyangz@...rosoft.com,
	jasowang@...hat.com, tomi.valkeinen@...com,
	devel@...uxdriverproject.org, Gerd Hoffmann <kraxel@...hat.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>
Subject: [PATCH v3 4/4] 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@...hat.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 135d8cd..a570836 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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ