blob: f208ec9c51dab0352def59a7a2643da1d9b85133 [file] [log] [blame]
Jan Kiszka87fdd472011-06-08 18:22:17 +02001#!/bin/sh -e
2#
3# Update Linux kernel headers QEMU requires from a specified kernel tree.
4#
5# Copyright (C) 2011 Siemens AG
6#
7# Authors:
8# Jan Kiszka <jan.kiszka@siemens.com>
9#
10# This work is licensed under the terms of the GNU GPL version 2.
11# See the COPYING file in the top-level directory.
12
13tmpdir=`mktemp -d`
14linux="$1"
15output="$2"
16
17if [ -z "$linux" ] || ! [ -d "$linux" ]; then
18 cat << EOF
19usage: update-kernel-headers.sh LINUX_PATH [OUTPUT_PATH]
20
21LINUX_PATH Linux kernel directory to obtain the headers from
22OUTPUT_PATH output directory, usually the qemu source tree (default: $PWD)
23EOF
24 exit 1
25fi
26
27if [ -z "$output" ]; then
28 output="$PWD"
29fi
30
Michael S. Tsirkin1ff0b552015-02-16 22:35:25 +010031cp_virtio() {
32 from=$1
33 to=$2
34 virtio=$(find "$from" -name '*virtio*h')
35 if [ "$virtio" ]; then
36 rm -rf "$to"
37 mkdir -p "$to"
38 for f in $virtio; do
39 if
40 grep '#include' "$f" | grep -v -e 'linux/virtio' \
41 -e 'linux/types' \
42 -e 'linux/if_ether' \
43 > /dev/null
44 then
45 echo "Unexpected #include in input file $f".
46 exit 2
47 fi
48
49 header=$(basename "$f");
50 sed -e 's/__u\([0-9][0-9]*\)/uint\1_t/g' \
51 -e 's/__le\([0-9][0-9]*\)/uint\1_t/g' \
52 -e 's/__be\([0-9][0-9]*\)/uint\1_t/g' \
53 -e 's/<linux\/\([^>]*\)>/"standard-headers\/linux\/\1"/' \
54 -e 's/__bitwise__//' \
55 -e 's/__attribute__((packed))/QEMU_PACKED/' \
Michael S. Tsirkinc16758c2015-02-18 16:37:35 +010056 -e 's/__inline__/inline/' \
Michael S. Tsirkin1ff0b552015-02-16 22:35:25 +010057 "$f" > "$to/$header";
58 done
59 fi
60}
61
Peter Maydell28796362012-07-18 11:11:09 +010062# This will pick up non-directories too (eg "Kconfig") but we will
63# ignore them in the next loop.
64ARCHLIST=$(cd "$linux/arch" && echo *)
65
66for arch in $ARCHLIST; do
67 # Discard anything which isn't a KVM-supporting architecture
Peter Maydellb55f5462012-10-22 12:54:39 +010068 if ! [ -e "$linux/arch/$arch/include/asm/kvm.h" ] &&
69 ! [ -e "$linux/arch/$arch/include/uapi/asm/kvm.h" ] ; then
Peter Maydell28796362012-07-18 11:11:09 +010070 continue
71 fi
72
73 # Blacklist architectures which have KVM headers but are actually dead
74 if [ "$arch" = "ia64" ]; then
75 continue
76 fi
77
Jan Kiszka87fdd472011-06-08 18:22:17 +020078 make -C "$linux" INSTALL_HDR_PATH="$tmpdir" SRCARCH=$arch headers_install
79
80 rm -rf "$output/linux-headers/asm-$arch"
81 mkdir -p "$output/linux-headers/asm-$arch"
82 for header in kvm.h kvm_para.h; do
83 cp "$tmpdir/include/asm/$header" "$output/linux-headers/asm-$arch"
84 done
85 if [ $arch = x86 ]; then
86 cp "$tmpdir/include/asm/hyperv.h" "$output/linux-headers/asm-x86"
87 fi
Bharat Bhushand56af002012-12-18 01:13:58 +000088 if [ $arch = powerpc ]; then
89 cp "$tmpdir/include/asm/epapr_hcalls.h" "$output/linux-headers/asm-powerpc/"
90 fi
Michael S. Tsirkin44fb1dd2015-02-16 22:36:48 +010091
92 cp_virtio "$tmpdir/include/asm" "$output/include/standard-headers/asm-$arch"
Jan Kiszka87fdd472011-06-08 18:22:17 +020093done
94
95rm -rf "$output/linux-headers/linux"
96mkdir -p "$output/linux-headers/linux"
Michael S. Tsirkin05e492b2015-02-16 22:36:32 +010097for header in kvm.h kvm_para.h vfio.h vhost.h \
Alexander Graf2872e192014-06-04 12:03:03 +020098 psci.h; do
Jan Kiszka87fdd472011-06-08 18:22:17 +020099 cp "$tmpdir/include/linux/$header" "$output/linux-headers/linux"
100done
Peter Maydell256d0462012-07-25 16:29:07 +0100101rm -rf "$output/linux-headers/asm-generic"
102mkdir -p "$output/linux-headers/asm-generic"
103for header in kvm_para.h; do
104 cp "$tmpdir/include/asm-generic/$header" "$output/linux-headers/asm-generic"
105done
Jan Kiszka87fdd472011-06-08 18:22:17 +0200106if [ -L "$linux/source" ]; then
107 cp "$linux/source/COPYING" "$output/linux-headers"
108else
109 cp "$linux/COPYING" "$output/linux-headers"
110fi
111
Michael S. Tsirkin05e492b2015-02-16 22:36:32 +0100112cat <<EOF >$output/linux-headers/linux/virtio_config.h
113#include "standard-headers/linux/virtio_config.h"
114EOF
115cat <<EOF >$output/linux-headers/linux/virtio_ring.h
116#include "standard-headers/linux/virtio_ring.h"
117EOF
Michael S. Tsirkin1ff0b552015-02-16 22:35:25 +0100118
119cp_virtio "$tmpdir/include/linux/" "$output/include/standard-headers/linux"
120
121cat <<EOF >$output/include/standard-headers/linux/types.h
122#include <stdint.h>
123#include "qemu/compiler.h"
124EOF
125cat <<EOF >$output/include/standard-headers/linux/if_ether.h
126#define ETH_ALEN 6
127EOF
128
Jan Kiszka87fdd472011-06-08 18:22:17 +0200129rm -rf "$tmpdir"