diff --git a/pkgs/os-specific/linux/kernel/2.6.22-paravirt-nvidia.patch b/pkgs/os-specific/linux/kernel/2.6.22-paravirt-nvidia.patch
deleted file mode 100644
index 15dc34680d0..00000000000
--- a/pkgs/os-specific/linux/kernel/2.6.22-paravirt-nvidia.patch
+++ /dev/null
@@ -1,14 +0,0 @@
-diff -rc linux-2.6.22.1/arch/i386/kernel/paravirt.c linux-2.6.22.1-para/arch/i386/kernel/paravirt.c
-*** linux-2.6.22.1/arch/i386/kernel/paravirt.c	2007-07-20 16:19:35.000000000 +0200
---- linux-2.6.22.1-para/arch/i386/kernel/paravirt.c	2007-07-20 16:20:00.000000000 +0200
-***************
-*** 344,347 ****
-  	.activate_mm = paravirt_nop,
-  };
-  
-! EXPORT_SYMBOL(paravirt_ops);
---- 344,347 ----
-  	.activate_mm = paravirt_nop,
-  };
-  
-! EXPORT_SYMBOL_GPL(paravirt_ops);
diff --git a/pkgs/os-specific/linux/kernel/config-2.6.23-i686-smp b/pkgs/os-specific/linux/kernel/config-2.6.23-i686-smp
index 5e472930410..86fbe30c521 100644
--- a/pkgs/os-specific/linux/kernel/config-2.6.23-i686-smp
+++ b/pkgs/os-specific/linux/kernel/config-2.6.23-i686-smp
@@ -119,7 +119,7 @@ CONFIG_X86_PC=y
 # CONFIG_X86_GENERICARCH is not set
 # CONFIG_X86_ES7000 is not set
 CONFIG_PARAVIRT=y
-CONFIG_XEN=y
+# CONFIG_XEN is not set
 CONFIG_VMI=y
 # CONFIG_M386 is not set
 # CONFIG_M486 is not set
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d6ef883b865..29aa12cb775 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -3216,9 +3216,6 @@ rec {
         "CONFIG_EXT3COW_FS_SECURITY=y\n";
       }
       */
-      { name = "paravirt-nvidia";
-        patch = ../os-specific/linux/kernel/2.6.22-paravirt-nvidia.patch;
-      }
       /*
       { name = "skas-2.6.20-v9-pre9";
         patch = fetchurl {
@@ -3285,9 +3282,6 @@ rec {
   kernel_2_6_23 = import ../os-specific/linux/kernel/linux-2.6.23.nix {
     inherit fetchurl stdenv perl mktemp module_init_tools;
     kernelPatches = [
-      { name = "paravirt-nvidia";
-        patch = ../os-specific/linux/kernel/2.6.22-paravirt-nvidia.patch;
-      }
       { # resume with resume=swap:/dev/xx
         name = "tux on ice"; # (swsusp2)
         patch = fetchurl {