[PATCH] Fix fallouts from Linux header inclusion

Jan Kiszka
2011-06-23T08:05:15Z

From: Jan Kiszka <jan.kiszka@siemens.com>

This is an all-in-one fix for the smaller and bigger mistakes of the
build system changes for accompanied Linux headers:
- only enable KVM and vhost on Linux hosts
- fix powerpc asm header symlink
- do not use Linux headers on non-Linux hosts
- fix kvmclock for !CONFIG_KVM
- fix s390 build on non-Linux hosts

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---

Let me know if separate patches are preferred for this.

Makefile.target | 8 ++++++--
configure | 34 +++++++++++++++++++---------------
hw/kvmclock.h | 10 ++++++++++
target-s390x/op_helper.c | 6 +++++-
4 files changed, 40 insertions(+), 18 deletions(-)

diff --git a/Makefile.target b/Makefile.target
index 03d3646..d3971a6 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -14,7 +14,10 @@ endif

TARGET_PATH=$(SRC_PATH)/target-$(TARGET_BASE_ARCH)
$(call set-vpath, $(SRC_PATH):$(TARGET_PATH):$(SRC_PATH)/hw)
-QEMU_CFLAGS+= -I.. -I../linux-headers -I$(TARGET_PATH) -DNEED_CPU_H
+ifdef CONFIG_LINUX
+QEMU_CFLAGS += -I../linux-headers
+endif
+QEMU_CFLAGS += -I.. -I$(TARGET_PATH) -DNEED_CPU_H

include $(SRC_PATH)/Makefile.objs

@@ -234,7 +237,8 @@ obj-i386-y += cirrus_vga.o sga.o apic.o ioapic.o piix_pci.o
obj-i386-y += vmport.o
obj-i386-y += device-hotplug.o pci-hotplug.o smbios.o wdt_ib700.o
obj-i386-y += debugcon.o multiboot.o
-obj-i386-y += pc_piix.o kvmclock.o
+obj-i386-y += pc_piix.o
+obj-i386-$(CONFIG_KVM) += kvmclock.o
obj-i386-$(CONFIG_SPICE) += qxl.o qxl-logger.o qxl-render.o

# shared objects
diff --git a/configure b/configure
index 856b41e..e523976 100755
--- a/configure
+++ b/configure
@@ -113,7 +113,7 @@ curl=""
curses=""
docs=""
fdt=""
-kvm="yes"
+kvm=""
nptl=""
sdl=""
vnc="yes"
@@ -129,7 +129,7 @@ xen=""
xen_ctrl_version=""
linux_aio=""
attr=""
-vhost_net="yes"
+vhost_net=""
xfs=""

gprof="no"
@@ -457,6 +457,8 @@ Haiku)
linux="yes"
linux_user="yes"
usb="linux"
+ kvm="yes"
+ vhost_net="yes"
if [ "$cpu" = "i386" -o "$cpu" = "x86_64" ] ; then
audio_possible_drivers="$audio_possible_drivers fmod"
fi
@@ -3444,19 +3446,21 @@ if test "$target_linux_user" = "yes" -o "$target_bsd_user" = "yes" ; then
fi

# use included Linux headers
-includes="-I\$(SRC_PATH)/linux-headers $includes"
-mkdir -p linux-headers
-case "$cpu" in
-i386|x86_64)
- symlink $source_path/linux-headers/asm-x86 linux-headers/asm
- ;;
-ppcemb|ppc|ppc64)
- symlink $source_path/linux-headers/asm-x86 linux-headers/asm
- ;;
-s390x)
- symlink $source_path/linux-headers/asm-s390 linux-headers/asm
- ;;
-esac
+if test "$linux" = "yes" ; then
+ includes="-I\$(SRC_PATH)/linux-headers $includes"
+ mkdir -p linux-headers
+ case "$cpu" in
+ i386|x86_64)
+ symlink $source_path/linux-headers/asm-x86 linux-headers/asm
+ ;;
+ ppcemb|ppc|ppc64)
+ symlink $source_path/linux-headers/asm-powerpc linux-headers/asm
+ ;;
+ s390x)
+ symlink $source_path/linux-headers/asm-s390 linux-headers/asm
+ ;;
+ esac
+fi

echo "LDFLAGS+=$ldflags" >> $config_target_mak
echo "QEMU_CFLAGS+=$cflags" >> $config_target_mak
diff --git a/hw/kvmclock.h b/hw/kvmclock.h
index 7a83cbe..252ea13 100644
--- a/hw/kvmclock.h
+++ b/hw/kvmclock.h
@@ -11,4 +11,14 @@
*
*/

+#ifdef CONFIG_KVM
+
void kvmclock_create(void);
+
+#else /* CONFIG_KVM */
+
+static inline void kvmclock_create(void)
+{
+}
+
+#endif /* !CONFIG_KVM */
diff --git a/target-s390x/op_helper.c b/target-s390x/op_helper.c
index 9429698..6a3c1f6 100644
--- a/target-s390x/op_helper.c
+++ b/target-s390x/op_helper.c
@@ -23,8 +23,10 @@
#include "helpers.h"
#include <string.h>
#include "kvm.h"
-#include <linux/kvm.h>
#include "qemu-timer.h"
+#ifdef CONFIG_KVM
+#include <linux/kvm.h>
+#endif

/*****************************************************************************/
/* Softmmu support */
@@ -2332,7 +2334,9 @@ static void program_interrupt(CPUState *env, uint32_t code, int ilc)
qemu_log("program interrupt at %#" PRIx64 "\n", env->psw.addr);

if (kvm_enabled()) {
+#ifdef CONFIG_KVM
kvm_s390_interrupt(env, KVM_S390_PROGRAM_INT, code);
+#endif
} else {
env->int_pgm_code = code;
env->int_pgm_ilc = ilc;