Author: dannf
Date: Fri May 4 21:26:06 2007
New Revision: 8564
Added:
dists/etch/linux-2.6/debian/patches/bugfix/amd64-make-gart-ptes-uncacheable.patch
Modified:
dists/etch/linux-2.6/debian/changelog
dists/etch/linux-2.6/debian/patches/series/13
Log:
* bugfix/amd64-make-gart-ptes-uncacheable.patch
Fix silent data corruption using GART iommu (closes: #404148)
Modified: dists/etch/linux-2.6/debian/changelog
==============================================================================
--- dists/etch/linux-2.6/debian/changelog (original)
+++ dists/etch/linux-2.6/debian/changelog Fri May 4 21:26:06 2007
@@ -25,6 +25,8 @@
See CVE-2007-2242
* Fix an oops which potentially results in data corruption in the gdth
driver.
(closes: #412092)
+ * bugfix/amd64-make-gart-ptes-uncacheable.patch
+ Fix silent data corruption using GART iommu (closes: #404148)
[ maximilian attems ]
* Backport support for i965 to agp too. (closes: #406111)
@@ -34,7 +36,7 @@
[ Martin Michlmayr ]
* Fix wrong checksum for split TCP packets on 64-bit MIPS. (closes: #421283)
- -- dann frazier <[EMAIL PROTECTED]> Tue, 01 May 2007 19:11:48 -0600
+ -- dann frazier <[EMAIL PROTECTED]> Fri, 04 May 2007 15:21:07 -0600
linux-2.6 (2.6.18.dfsg.1-12etch2) stable-security; urgency=high
Added:
dists/etch/linux-2.6/debian/patches/bugfix/amd64-make-gart-ptes-uncacheable.patch
==============================================================================
--- (empty file)
+++
dists/etch/linux-2.6/debian/patches/bugfix/amd64-make-gart-ptes-uncacheable.patch
Fri May 4 21:26:06 2007
@@ -0,0 +1,34 @@
+From: Joachim Deguara <[EMAIL PROTECTED]>
+Date: Tue, 24 Apr 2007 11:05:36 +0000 (+0200)
+Subject: [PATCH] x86-64: make GART PTEs uncacheable
+X-Git-Tag: v2.6.21~9^2~3
+X-Git-Url:
http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=cf6387daf8858bdcb3e123034ca422e8979d73f1
+
+[PATCH] x86-64: make GART PTEs uncacheable
+
+This patches fixes the silent data corruption problems being seen using the
+GART iommu where 4kB of data where incorrect (seen mostly on Nvidia CK804
+systems). This fix, to mark the memory regin the GART PTEs reside on as
+uncacheable, also brings the code in line with the AGP specification.
+
+Signed-off-by: Joachim Deguara <[EMAIL PROTECTED]>
+Signed-off-by: Andi Kleen <[EMAIL PROTECTED]>
+---
+
+diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c
+index 2bac8c6..0bae862 100644
+--- a/arch/x86_64/kernel/pci-gart.c
++++ b/arch/x86_64/kernel/pci-gart.c
+@@ -519,7 +519,11 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
+ gatt_size = (aper_size >> PAGE_SHIFT) * sizeof(u32);
+ gatt = (void *)__get_free_pages(GFP_KERNEL, get_order(gatt_size));
+ if (!gatt)
+- panic("Cannot allocate GATT table");
++ panic("Cannot allocate GATT table");
++ if (change_page_attr_addr((unsigned long)gatt, gatt_size >> PAGE_SHIFT,
PAGE_KERNEL_NOCACHE))
++ panic("Could not set GART PTEs to uncacheable pages");
++ global_flush_tlb();
++
+ memset(gatt, 0, gatt_size);
+ agp_gatt_table = gatt;
+
Modified: dists/etch/linux-2.6/debian/patches/series/13
==============================================================================
--- dists/etch/linux-2.6/debian/patches/series/13 (original)
+++ dists/etch/linux-2.6/debian/patches/series/13 Fri May 4 21:26:06 2007
@@ -5,3 +5,4 @@
+ bugfix/jmicron-generic-device-conflict.patch
+ bugfix/ipv6-disallow-RH0-by-default.patch
+ bugfix/gdth_copy_cmd-oops-fix.patch
++ bugfix/amd64-make-gart-ptes-uncacheable.patch
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