>From d6a62d7969f3c293757d608d78d82557a864b3ed Mon Sep 17 00:00:00 2001
From: Xiantao Zhang <xiantao.zhang@xxxxxxxxx>
Date: Wed, 2 Jul 2008 17:04:19 +0800
Subject: [PATCH] KVM: external module: Allow non-x86 archs to build in
userspace.
This patch targets for allowing kvm/ia64 to build in userspace.
For other archs. it should also benefit them for supporting userspace's
build.
Signed-off-by: Xiantao Zhang <xiantao.zhang@xxxxxxxxx>
---
kernel/Kbuild | 1 +
kernel/Makefile | 22 ++++++++++++++--------
kernel/ia64/Kbuild | 7 +++++++
kernel/ia64/Makefile.pre | 23 +++++++++++++++++++++++
kernel/ia64/external-module-compat.h | 15 +++++++++++++++
kernel/x86/Makefile.pre | 1 +
6 files changed, 61 insertions(+), 8 deletions(-)
create mode 100644 kernel/ia64/Kbuild
create mode 100644 kernel/ia64/Makefile.pre
create mode 100644 kernel/ia64/external-module-compat.h
create mode 100644 kernel/x86/Makefile.pre
diff --git a/kernel/Kbuild b/kernel/Kbuild
index 7019ca0..ec34c43 100644
--- a/kernel/Kbuild
+++ b/kernel/Kbuild
@@ -1 +1,2 @@
obj-$(CONFIG_X86) += x86/
+obj-$(CONFIG_IA64) += ia64/
diff --git a/kernel/Makefile b/kernel/Makefile
index 94d63bc..0d5d148 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -7,6 +7,8 @@ KVERREL = $(patsubst
/lib/modules/%/build,%,$(KERNELDIR))
DESTDIR=
+MAKEFILE_PRE = $(ARCH_DIR)/Makefile.pre
+
INSTALLDIR = $(patsubst %/build,%/extra,$(KERNELDIR))
ORIGMODDIR = $(patsubst %/build,%/kernel,$(KERNELDIR))
@@ -27,10 +29,11 @@ unifdef = mv $1 $1.orig && \
hack = $(call _hack,$T/$(strip $1))
hack-files-x86 = kvm_main.c mmu.c vmx.c svm.c x86.c irq.h lapic.c
i8254.c
+hack-files-ia64 =
hack-files = $(hack-files-$(ARCH_DIR))
-all::
+all:: header-link
# include header priority 1) $LINUX 2) $KERNELDIR 3)
include-compat
$(MAKE) -C $(KERNELDIR) M=`pwd` \
LINUXINCLUDE="-I`pwd`/include -Iinclude
-I`pwd`/include-compat \
@@ -38,7 +41,12 @@ all::
-include `pwd`/$(ARCH_DIR)/external-module-compat.h"
"$$@"
-sync: header-sync source-sync
+sync: header-sync source-sync header-link prerequisite
+
+header-link:
+ rm -f include/asm
+ ln -sf asm-$(ARCH_DIR) include/asm
+ ln -sf asm-$(ARCH_DIR) include-compat/asm
T = $(subst -sync,,$@)-tmp
@@ -56,15 +64,11 @@ header-sync:
do mkdir -p $$(dirname $$i); cmp -s $$i $T/$$i || cp
$T/$$i $$i; done
rm -rf $T
- rm -f include/asm
- ln -sf asm-$(ARCH_DIR) include/asm
- ln -sf asm-$(ARCH_DIR) include-compat/asm
-
source-sync:
rm -rf $T
rsync --exclude='*.mod.c' -R \
- "$(LINUX)"/arch/$(ARCH_DIR)/kvm/./*.[ch] \
- "$(LINUX)"/virt/kvm/./*.[ch] \
+ "$(LINUX)"/arch/$(ARCH_DIR)/kvm/./*.[cSh] \
+ "$(LINUX)"/virt/kvm/./*.[cSh] \
$T/
set -e && for i in $(find $T -name '*.c'); do \
@@ -77,6 +81,8 @@ source-sync:
do cmp -s $(ARCH_DIR)/$$i $T/$$i || cp $T/$$i
$(ARCH_DIR)/$$i; done
rm -rf $T
+include $(MAKEFILE_PRE)
+
install:
mkdir -p $(DESTDIR)/$(INSTALLDIR)
cp $(ARCH_DIR)/*.ko $(DESTDIR)/$(INSTALLDIR)
diff --git a/kernel/ia64/Kbuild b/kernel/ia64/Kbuild
new file mode 100644
index 0000000..764a493
--- /dev/null
+++ b/kernel/ia64/Kbuild
@@ -0,0 +1,7 @@
+obj-m := kvm.o kvm-intel.o
+
+kvm-objs := kvm_main.o ioapic.o coalesced_mmio.o kvm-ia64.o kvm_fw.o
+
+EXTRA_CFLAGS_vcpu.o += -mfixed-range=f2-f5,f12-f127
+kvm-intel-objs := vmm.o vmm_ivt.o trampoline.o vcpu.o optvfault.o
mmio.o \
+ vtlb.o process.o memset.o memcpy.o
diff --git a/kernel/ia64/Makefile.pre b/kernel/ia64/Makefile.pre
new file mode 100644
index 0000000..f478bbb
--- /dev/null
+++ b/kernel/ia64/Makefile.pre
@@ -0,0 +1,23 @@
+prerequisite: asm-offsets.h ia64/memset.S ia64/memcpy.S
+ cp -f $(KERNELDIR)/arch/ia64/lib/memcpy.S ia64/memcpy.S
+ cp -f $(KERNELDIR)/arch/ia64/lib/memset.S ia64/memset.S
+ cmp -s asm-offset.h ia64/asm-offset.h || mv -f asm-offsets.*
ia64/
+
+asm-offsets.h: asm-offsets.s
+ @(set -e; \
+ echo "/*"; \
+ echo " * DO NOT MODIFY."; \
+ echo " *"; \
+ echo " * This file was auto-generated from $<"; \
+ echo " *"; \
+ echo " */"; \
+ echo ""; \
+ echo "#ifndef __KVM_ASM_OFFSETS_H__"; \
+ echo "#define __KVM_ASM_OFFSETS_H__"; \
+ echo ""; \
+ sed -ne "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define
\1 \2 /* \3 */:; s:->::; p;}"; \
+ echo ""; \
+ echo "#endif") <$< >$@
+
+asm-offsets.s: ia64/asm-offsets.c
+ gcc -S -D__KERNEL__ -I$(KERNELDIR)/include -I./include
ia64/asm-offsets.c
diff --git a/kernel/ia64/external-module-compat.h
b/kernel/ia64/external-module-compat.h
new file mode 100644
index 0000000..3c4001c
--- /dev/null
+++ b/kernel/ia64/external-module-compat.h
@@ -0,0 +1,15 @@
+/*
+ * Compatibility header for building as an external module.
+ */
+
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)
+#error "KVM/IA-64 Can't be compiled if kernel version < 2.6.26"
+#endif
+
+#ifndef CONFIG_PREEMPT_NOTIFIERS
+/*Now, Just print an error message if no preempt notifiers configured!!
+ TODO: Implement it later! */
+#error "KVM/IA-64 depends on preempt notifiers in kernel."
+#endif
diff --git a/kernel/x86/Makefile.pre b/kernel/x86/Makefile.pre
new file mode 100644
index 0000000..e38baf1
--- /dev/null
+++ b/kernel/x86/Makefile.pre
@@ -0,0 +1 @@
+prerequisite:
--
1.5.2
Attachment:
0007-KVM-external-module-Allow-non-x86-archs-to-build-i.patch
Description: 0007-KVM-external-module-Allow-non-x86-archs-to-build-i.patch
