diff --git a/pkgs/os-specific/linux/kvm/84.nix b/pkgs/os-specific/linux/kvm/84.nix
deleted file mode 100644
index a1830e4c203a..000000000000
--- a/pkgs/os-specific/linux/kvm/84.nix
+++ /dev/null
@@ -1,38 +0,0 @@
-{stdenv, fetchurl, kernelHeaders, zlib, e2fsprogs, SDL, alsaLib, pkgconfig, rsync}:
-   
-assert stdenv.isLinux;
-   
-stdenv.mkDerivation rec {
-  name = "kvm-84";
-   
-  src = fetchurl {
-    url = "mirror://sourceforge/kvm/${name}.tar.gz";
-    sha256 = "13lqhy4lpxqby7qj3l1cdbj73c7jmvkq73bc5wchwn0l0dkjsjlk";
-  };
-
-  patches = [
-    # Allow setting the path to Samba through $QEMU_SMBD_COMMAND.
-    ./smbd-path-r2.patch
-    # The makefile copies stuff from the kernel directory and then
-    # tries to modify the copy, but it must be made writable first.
-    ./readonly-kernel-r3.patch
-  ];
-
-  configureFlags = "--with-patched-kernel --kerneldir=${kernelHeaders}";
-
-  # e2fsprogs is needed for libuuid.
-  # rsync is a weird dependency used for copying kernel header files.
-  buildInputs = [zlib e2fsprogs SDL alsaLib pkgconfig rsync];
-
-  preConfigure = ''
-    for i in configure user/configure; do
-      substituteInPlace $i --replace /bin/bash $shell
-    done
-    substituteInPlace libkvm/Makefile --replace kvm_para.h kvm.h # !!! quick hack
-  '';
-
-  meta = {
-    homepage = http://kvm.qumranet.com/;
-    description = "A full virtualization solution for Linux on x86 hardware containing virtualization extensions";
-  };
-}
diff --git a/pkgs/os-specific/linux/kvm/86.nix b/pkgs/os-specific/linux/kvm/86.nix
new file mode 100644
index 000000000000..46069a409413
--- /dev/null
+++ b/pkgs/os-specific/linux/kvm/86.nix
@@ -0,0 +1,39 @@
+{stdenv, fetchurl, kernelHeaders, zlib, SDL, alsaLib, pkgconfig, pciutils}:
+   
+assert stdenv.isLinux;
+   
+stdenv.mkDerivation rec {
+  name = "kvm-86";
+   
+  src = fetchurl {
+    url = "mirror://sourceforge/kvm/${name}.tar.gz";
+    sha256 = "17fq2dyd0qla0yiddyiqvb8kz3sfy6dhy9fi9y7xcbhs26s0wxax";
+  };
+
+  patches = [
+    # Allow setting the path to Samba through $QEMU_SMBD_COMMAND.
+    ./smbd-path-r3.patch
+  ];
+
+  configureFlags = "--enable-io-thread";
+
+  # e2fsprogs is needed for libuuid.
+  # rsync is a weird dependency used for copying kernel header files.
+  buildInputs = [zlib SDL alsaLib pkgconfig pciutils];
+
+  preConfigure = ''
+    for i in configure kvm/configure kvm/user/configure; do
+      substituteInPlace $i --replace /bin/bash $shell
+    done
+    
+    substituteInPlace kvm/libkvm/Makefile --replace kvm_para.h kvm.h # !!! quick hack
+
+    # This prevents the kernel module from being built.
+    rm kvm/kernel/configure
+  '';
+
+  meta = {
+    homepage = http://kvm.qumranet.com/;
+    description = "A full virtualization solution for Linux on x86 hardware containing virtualization extensions";
+  };
+}
diff --git a/pkgs/os-specific/linux/kvm/readonly-kernel.patch b/pkgs/os-specific/linux/kvm/readonly-kernel.patch
deleted file mode 100644
index 54e9225d101e..000000000000
--- a/pkgs/os-specific/linux/kvm/readonly-kernel.patch
+++ /dev/null
@@ -1,14 +0,0 @@
-diff -rc kvm-69-orig/kernel/Makefile kvm-69/kernel/Makefile
-*** kvm-69-orig/kernel/Makefile	2008-05-12 13:30:43.000000000 +0200
---- kvm-69/kernel/Makefile	2008-06-04 17:23:34.000000000 +0200
-***************
-*** 48,53 ****
---- 48,54 ----
-  	     "$(LINUX)"/./include/linux/kvm*.h \
-  	     "$(LINUX)"/./include/asm-*/kvm*.h \
-               $T/
-+ 	chmod -R u+w $T
-  
-  	set -e && for i in $(find $T -name '*.h'); do \
-  		$(call unifdef,$$i); done
-Only in kvm-69/kernel: Makefile~
diff --git a/pkgs/os-specific/linux/kvm/smbd-path-r2.patch b/pkgs/os-specific/linux/kvm/smbd-path-r3.patch
similarity index 58%
rename from pkgs/os-specific/linux/kvm/smbd-path-r2.patch
rename to pkgs/os-specific/linux/kvm/smbd-path-r3.patch
index 191d45665699..32099ad69307 100644
--- a/pkgs/os-specific/linux/kvm/smbd-path-r2.patch
+++ b/pkgs/os-specific/linux/kvm/smbd-path-r3.patch
@@ -1,25 +1,25 @@
-diff -rc kvm-82-orig/qemu/net.c kvm-82/qemu/net.c
-*** kvm-82-orig/qemu/net.c	2008-12-24 15:24:58.000000000 +0100
---- kvm-82/qemu/net.c	2009-01-13 12:59:15.000000000 +0100
+diff -rc kvm-86/net.c kvm-86-new/net.c
+*** kvm-86/net.c	2009-05-19 18:29:02.000000000 +0200
+--- kvm-86-new/net.c	2009-06-02 17:41:15.000000000 +0200
 ***************
-*** 560,570 ****
-          slirp_init();
+*** 684,694 ****
+          slirp_init(slirp_restrict, slirp_ip);
       }
   
 !     /* XXX: better tmp dir construction */
-!     snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%d", getpid());
+!     snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid());
 !     if (mkdir(smb_dir, 0700) < 0) {
 !         fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
 !         exit(1);
       }
       snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
   
---- 560,572 ----
-          slirp_init();
+--- 684,696 ----
+          slirp_init(slirp_restrict, slirp_ip);
       }
   
 !     while (1) {
-!         snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%d.%d", getpid(), random());
+!         snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld.%d", (long) getpid(), random());
 !         if (mkdir(smb_dir, 0700) == 0) break;
 !         if (errno != EEXIST) {
 !             fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
@@ -28,11 +28,11 @@ diff -rc kvm-82-orig/qemu/net.c kvm-82/qemu/net.c
       }
       snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
   
-diff -rc kvm-82-orig/qemu/net.h kvm-82/qemu/net.h
-*** kvm-82-orig/qemu/net.h	2008-12-24 15:24:58.000000000 +0100
---- kvm-82/qemu/net.h	2009-01-13 12:58:28.000000000 +0100
+diff -rc kvm-86/net.h kvm-86-new/net.h
+*** kvm-86/net.h	2009-05-19 18:29:02.000000000 +0200
+--- kvm-86-new/net.h	2009-06-02 17:39:17.000000000 +0200
 ***************
-*** 99,105 ****
+*** 129,135 ****
   #ifdef __sun__
   #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
   #else
@@ -40,7 +40,7 @@ diff -rc kvm-82-orig/qemu/net.h kvm-82/qemu/net.h
   #endif
   
   #endif
---- 99,105 ----
+--- 129,135 ----
   #ifdef __sun__
   #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
   #else
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 72c136ff40db..00ac6c7febd0 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5192,8 +5192,8 @@ let
     inherit (glibc) kernelHeaders;
   };
 
-  kvm84 = import ../os-specific/linux/kvm/84.nix {
-    inherit fetchurl stdenv zlib e2fsprogs SDL alsaLib pkgconfig rsync;
+  kvm86 = import ../os-specific/linux/kvm/86.nix {
+    inherit fetchurl stdenv zlib SDL alsaLib pkgconfig pciutils;
     inherit (glibc) kernelHeaders;
   };