Create kernel-qubes-vm subpackage (#242)

Package containing kernel for VM with modules and firmware included.

kernel-xenlinux.spec

@@ -19,6 +19,7 @@
 %define build_src_dir %my_builddir/linux-%version
 %define src_install_dir /usr/src/kernels/%kernelrelease
 %define kernel_build_dir %my_builddir/linux-obj
+%define vm_install_dir /var/lib/qubes/vm-kernels/%kernelrelease
 
 %(chmod +x %_sourcedir/{guards,apply-patches,check-for-config-changes})
 
@@ -60,6 +61,7 @@ Source16:       guards
 Source17:       apply-patches
 Source33:       check-for-config-changes
 Source100:      config-%{build_flavor}
+# FIXME: Including dirs this way does NOT produce proper src.rpms
 Source200:      patches.arch
 Source201:      patches.drivers
 Source202:      patches.fixes
@@ -68,6 +70,8 @@ Source204:      patches.suse
 Source205:      patches.xen
 Source207:      patches.kernel.org
 Source300:      patches.qubes
+Source301:      u2mfn
+Source302:      vm-initramfs-pre-udev
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 ExclusiveArch:  x86_64
 
@@ -127,6 +131,7 @@ rm -f source
 find . ! -type d -printf '%%P\n' > %my_builddir/obj-files
 
 %build
+
 cd %kernel_build_dir
 
 # If the %jobs macro is defined to a number, make will spawn that many jobs.
@@ -138,6 +143,8 @@ cd %kernel_build_dir
 #         kernel-$flavor.spec
 make %{?jobs:-j%jobs} all $MAKE_ARGS CONFIG_DEBUG_SECTION_MISMATCH=y
 
+# Build u2mfn module
+make -C %kernel_build_dir SUBDIRS=%_builddir/u2mfn modules
 
 %install
 
@@ -260,12 +267,6 @@ egrep -v \
 
 rm -f modinfo modnames
 
-# remove files that will be auto generated by depmod at rpm -i time
-for i in alias alias.bin ccwmap dep dep.bin ieee1394map inputmap isapnpmap ofmap pcimap seriomap symbols symbols.bin usbmap
-do
-  rm -f %buildroot/lib/modules/%kernelrelease/modules.$i
-done
-
 # Move the devel headers out of the root file system
 mkdir -p %buildroot/usr/src/kernels
 mv %buildroot/lib/modules/%kernelrelease/build/* %buildroot/%src_install_dir
@@ -273,7 +274,6 @@ mv %buildroot/lib/modules/%kernelrelease/build/.config %buildroot/%src_install_d
 rmdir %buildroot/lib/modules/%kernelrelease/build
 ln -sf %src_install_dir %buildroot/lib/modules/%kernelrelease/build
 
-
 # Abort if there are any undefined symbols
 msg="$(/sbin/depmod -F %buildroot/boot/System.map-%kernelrelease \
      -b %buildroot -ae %kernelrelease 2>&1)"
@@ -282,6 +282,28 @@ if [ $? -ne 0 ] || echo "$msg" | grep  'needs unknown symbol'; then
 exit 1
 fi
 
+# Prepare initramfs for Qubes VM
+mkdir -p %buildroot/%vm_install_dir
+/sbin/dracut --nomdadmconf --nolvmconf \
+    --kmoddir %buildroot/lib/modules/%kernelrelease \
+    --include %_sourcedir/vm-initramfs-pre-udev /pre-udev \
+    --add-drivers xenblk \
+    %buildroot/%vm_install_dir/initramfs %kernelrelease
+
+cp -p arch/x86/boot/vmlinuz %buildroot/%vm_install_dir/vmlinuz
+
+# Modules for Qubes VM
+mkdir -p %buildroot%vm_install_dir/modules
+cp -a %buildroot/lib/modules/%kernelrelease %buildroot%vm_install_dir/modules/
+mkdir -p %buildroot%vm_install_dir/modules/firmware
+cp -a %buildroot/lib/firmware/%kernelrelease %buildroot%vm_install_dir/modules/firmware/
+
+# remove files that will be auto generated by depmod at rpm -i time
+for i in alias alias.bin ccwmap dep dep.bin ieee1394map inputmap isapnpmap ofmap pcimap seriomap symbols symbols.bin usbmap
+do
+  rm -f %buildroot/lib/modules/%kernelrelease/modules.$i
+done
+
 %post
 /sbin/new-kernel-pkg --package %{name}-%{kernelrelease}\
         --mkinitrd --depmod --dracut\
@@ -341,7 +363,7 @@ fi
 /usr/src/kernels/%{kernelrelease}
 
 
-%package domU
+%package qubes-vm
 Summary:        The Xen Kernel
 Version:        %{version}
 Release:        %{rel}
@@ -350,15 +372,10 @@ Group:          System/Kernel
 Url:            http://www.kernel.org/
 AutoReqProv:    on
 BuildRequires:  coreutils module-init-tools sparse
-Provides:       multiversion(kernel)
+Provides:       multiversion(kernel-qubes-vm)
-Provides:       %name = %version-%kernelrelease
 
 Provides:       kernel-xen-domU
 Provides:       kernel-qubes-domU
-Provides:       kernel-drm-nouveau = 16
-
-Requires(post): /sbin/new-kernel-pkg
-Requires(preun):/sbin/new-kernel-pkg
 
 Requires(pre):  coreutils gawk
 Requires(post): dracut
@@ -367,32 +384,30 @@ Conflicts:      sysfsutils < 2.0
 # root-lvm only works with newer udevs
 Conflicts:      udev < 118
 Conflicts:      lvm2 < 2.02.33
-Provides:       kernel = %version-%kernelrelease
+Provides:       kernel-qubes-vm = %version-%kernelrelease
 
-%description domU
+%description qubes-vm
 Qubes domU kernel.
 
-%post domU
+%post qubes-vm
-/sbin/new-kernel-pkg --package %{name}-%{kernelrelease}\
-        --mkinitrd --depmod --dracut\
-        --banner="Qubes"\
-        --make-default --install %{kernelrelease}
 
-%posttrans domU
+mkdir /tmp/qubes-modules-%kernelrelease
-/sbin/new-kernel-pkg --package %{name}-%{kernelrelease} --rpmposttrans %{kernelrelease}
+truncate -s 200M /tmp/qubes-modules-%kernelrelease.img
+mkfs -t ext3 -F /tmp/qubes-modules-%kernelrelease.img > /dev/null
+mount /tmp/qubes-modules-%kernelrelease.img /tmp/qubes-modules-%kernelrelease -o loop
+cp -a -t /tmp/qubes-modules-%kernelrelease %vm_install_dir/modules/*
+umount /tmp/qubes-modules-%kernelrelease
+rmdir /tmp/qubes-modules-%kernelrelease
+mv /tmp/qubes-modules-%kernelrelease.img %vm_install_dir/modules.img
 
-%preun domU
+qvm-set-default-kernel %{kernelrelease}
-/sbin/new-kernel-pkg --rminitrd --rmmoddep --remove %{kernelrelease}
 
-%files domU
+%files qubes-vm
 %defattr(-, root, root)
-%ghost /boot/initramfs-%{kernelrelease}.img
+%ghost %attr(0644, root, root) %vm_install_dir/modules.img
-/boot/System.map-%{kernelrelease}
+%attr(0644, root, root) %vm_install_dir/initramfs
-/boot/config-%{kernelrelease}
+%attr(0644, root, root) %vm_install_dir/vmlinuz
-/boot/symvers-%kernelrelease.gz
+%vm_install_dir/modules
-%attr(0644, root, root) /boot/vmlinuz-%{kernelrelease}
-/lib/firmware/%{kernelrelease}
-/lib/modules/%{kernelrelease}
 
 
 %changelog

vm-initramfs-pre-udev/90_qubes_cow_setup.sh

@@ -0,0 +1,31 @@
+#
+# This file should be places in pre-mount directory in dracut's initramfs
+#
+
+#!/bin/sh
+echo "Qubes initramfs script here:"
+
+if [ -e /dev/mapper/dmroot ] ; then 
+    die "Qubes: FATAL error: /dev/mapper/dmroot already exists?!"
+fi
+
+modprobe xenblk || modprobe xen-blkfront || echo "Qubes: Cannot load Xen Block Frontend..."
+
+echo "Waiting for /dev/xvda* devices..."
+while ! [ -e /dev/xvda ]; do sleep 0.1; done
+
+if [ `blockdev --getro /dev/xvda` = 1 ] ; then
+	echo "Qubes: Doing COW setup for AppVM..."
+
+	while ! [ -e /dev/xvdc ]; do sleep 0.1; done
+	while ! [ -e /dev/xvdc2 ]; do sleep 0.1; done
+
+	echo "0 `blockdev --getsz /dev/xvda` snapshot /dev/xvda /dev/xvdc2 P 16" | \
+    		dmsetup create dmroot || { echo "Qubes: FATAL: cannot create dmroot!"; }
+	echo Qubes: done.
+else
+	echo "Qubes: Doing R/W setup for TemplateVM..."
+	echo "0 `blockdev --getsz /dev/xvda` linear /dev/xvda 0" | \
+    		dmsetup create dmroot || { echo "Qubes: FATAL: cannot create dmroot!"; exit 1; }
+	echo Qubes: done.
+fi