Update linux sparse tree to subarch layout.

Sparse tree is based on 2.6.12 branch of linux-2.6-xen.hg.

Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

--HG--
rename : linux-2.6-xen-sparse/arch/xen/configs/xen0_defconfig_x86_32 => buildconfigs/linux-defconfig_xen0_x86_32
rename : linux-2.6-xen-sparse/arch/xen/configs/xen0_defconfig_x86_64 => buildconfigs/linux-defconfig_xen0_x86_64
rename : linux-2.6-xen-sparse/arch/xen/configs/xenU_defconfig_x86_32 => buildconfigs/linux-defconfig_xenU_x86_32
rename : linux-2.6-xen-sparse/arch/xen/configs/xenU_defconfig_x86_64 => buildconfigs/linux-defconfig_xenU_x86_64
rename : linux-2.6-xen-sparse/arch/xen/configs/xen_defconfig_x86_32 => buildconfigs/linux-defconfig_xen_x86_32
rename : linux-2.6-xen-sparse/arch/xen/configs/xen_defconfig_x86_64 => buildconfigs/linux-defconfig_xen_x86_64
rename : linux-2.6-xen-sparse/arch/xen/i386/Kconfig => linux-2.6-xen-sparse/arch/i386/Kconfig
rename : linux-2.6-xen-sparse/arch/xen/i386/Makefile => linux-2.6-xen-sparse/arch/i386/Makefile
rename : linux-2.6-xen-sparse/arch/xen/boot/Makefile => linux-2.6-xen-sparse/arch/i386/boot-xen/Makefile
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/Makefile => linux-2.6-xen-sparse/arch/i386/kernel/Makefile
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/acpi/Makefile => linux-2.6-xen-sparse/arch/i386/kernel/acpi/Makefile
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/acpi/boot.c => linux-2.6-xen-sparse/arch/i386/kernel/acpi/boot-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/apic.c => linux-2.6-xen-sparse/arch/i386/kernel/apic-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/cpu/Makefile => linux-2.6-xen-sparse/arch/i386/kernel/cpu/Makefile
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/cpu/common.c => linux-2.6-xen-sparse/arch/i386/kernel/cpu/common-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/cpu/mtrr/Makefile => linux-2.6-xen-sparse/arch/i386/kernel/cpu/mtrr/Makefile
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/cpu/mtrr/main.c => linux-2.6-xen-sparse/arch/i386/kernel/cpu/mtrr/main-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/entry.S => linux-2.6-xen-sparse/arch/i386/kernel/entry-xen.S
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/fixup.c => linux-2.6-xen-sparse/arch/i386/kernel/fixup.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/head.S => linux-2.6-xen-sparse/arch/i386/kernel/head-xen.S
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/i386_ksyms.c => linux-2.6-xen-sparse/arch/i386/kernel/i386_ksyms-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/init_task.c => linux-2.6-xen-sparse/arch/i386/kernel/init_task-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/io_apic.c => linux-2.6-xen-sparse/arch/i386/kernel/io_apic-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/ioport.c => linux-2.6-xen-sparse/arch/i386/kernel/ioport-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/irq.c => linux-2.6-xen-sparse/arch/i386/kernel/irq-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/ldt.c => linux-2.6-xen-sparse/arch/i386/kernel/ldt-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/microcode.c => linux-2.6-xen-sparse/arch/i386/kernel/microcode-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/mpparse.c => linux-2.6-xen-sparse/arch/i386/kernel/mpparse-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/pci-dma.c => linux-2.6-xen-sparse/arch/i386/kernel/pci-dma-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/process.c => linux-2.6-xen-sparse/arch/i386/kernel/process-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/quirks.c => linux-2.6-xen-sparse/arch/i386/kernel/quirks-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/setup.c => linux-2.6-xen-sparse/arch/i386/kernel/setup-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/signal.c => linux-2.6-xen-sparse/arch/i386/kernel/signal-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/smp.c => linux-2.6-xen-sparse/arch/i386/kernel/smp-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/swiotlb.c => linux-2.6-xen-sparse/arch/i386/kernel/swiotlb.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/time.c => linux-2.6-xen-sparse/arch/i386/kernel/time-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/traps.c => linux-2.6-xen-sparse/arch/i386/kernel/traps-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/kernel/vsyscall-note.S => linux-2.6-xen-sparse/arch/i386/kernel/vsyscall-note-xen.S
rename : linux-2.6-xen-sparse/arch/xen/i386/mach-default/Makefile => linux-2.6-xen-sparse/arch/i386/mach-xen/Makefile
rename : linux-2.6-xen-sparse/arch/xen/i386/mm/Makefile => linux-2.6-xen-sparse/arch/i386/mm/Makefile
rename : linux-2.6-xen-sparse/arch/xen/i386/mm/fault.c => linux-2.6-xen-sparse/arch/i386/mm/fault-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/mm/highmem.c => linux-2.6-xen-sparse/arch/i386/mm/highmem-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/mm/hypervisor.c => linux-2.6-xen-sparse/arch/i386/mm/hypervisor.c
rename : linux-2.6-xen-sparse/arch/xen/i386/mm/init.c => linux-2.6-xen-sparse/arch/i386/mm/init-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/mm/ioremap.c => linux-2.6-xen-sparse/arch/i386/mm/ioremap-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/mm/pgtable.c => linux-2.6-xen-sparse/arch/i386/mm/pgtable-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/pci/Makefile => linux-2.6-xen-sparse/arch/i386/pci/Makefile
rename : linux-2.6-xen-sparse/arch/xen/i386/pci/i386.c => linux-2.6-xen-sparse/arch/i386/pci/i386-xen.c
rename : linux-2.6-xen-sparse/arch/xen/i386/pci/irq.c => linux-2.6-xen-sparse/arch/i386/pci/irq-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/Kconfig => linux-2.6-xen-sparse/arch/x86_64/Kconfig
rename : linux-2.6-xen-sparse/arch/xen/x86_64/Makefile => linux-2.6-xen-sparse/arch/x86_64/Makefile
rename : linux-2.6-xen-sparse/arch/xen/x86_64/ia32/Makefile => linux-2.6-xen-sparse/arch/x86_64/ia32/Makefile
rename : linux-2.6-xen-sparse/arch/xen/x86_64/ia32/ia32entry.S => linux-2.6-xen-sparse/arch/x86_64/ia32/ia32entry-xen.S
rename : linux-2.6-xen-sparse/arch/xen/x86_64/ia32/syscall32.c => linux-2.6-xen-sparse/arch/x86_64/ia32/syscall32-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/ia32/vsyscall-int80.S => linux-2.6-xen-sparse/arch/x86_64/ia32/vsyscall-int80.S
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/Makefile => linux-2.6-xen-sparse/arch/x86_64/kernel/Makefile
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/acpi/Makefile => linux-2.6-xen-sparse/arch/x86_64/kernel/acpi/Makefile
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/apic.c => linux-2.6-xen-sparse/arch/x86_64/kernel/apic-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/e820.c => linux-2.6-xen-sparse/arch/x86_64/kernel/e820-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/early_printk.c => linux-2.6-xen-sparse/arch/x86_64/kernel/early_printk-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/entry.S => linux-2.6-xen-sparse/arch/x86_64/kernel/entry-xen.S
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/genapic.c => linux-2.6-xen-sparse/arch/x86_64/kernel/genapic-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/genapic_xen.c => linux-2.6-xen-sparse/arch/x86_64/kernel/genapic_xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/head.S => linux-2.6-xen-sparse/arch/x86_64/kernel/head-xen.S
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/head64.c => linux-2.6-xen-sparse/arch/x86_64/kernel/head64-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/io_apic.c => linux-2.6-xen-sparse/arch/x86_64/kernel/io_apic-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/ioport.c => linux-2.6-xen-sparse/arch/x86_64/kernel/ioport-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/irq.c => linux-2.6-xen-sparse/arch/x86_64/kernel/irq-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/ldt.c => linux-2.6-xen-sparse/arch/x86_64/kernel/ldt-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/mpparse.c => linux-2.6-xen-sparse/arch/x86_64/kernel/mpparse-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/pci-nommu.c => linux-2.6-xen-sparse/arch/x86_64/kernel/pci-nommu-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/process.c => linux-2.6-xen-sparse/arch/x86_64/kernel/process-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/setup.c => linux-2.6-xen-sparse/arch/x86_64/kernel/setup-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/setup64.c => linux-2.6-xen-sparse/arch/x86_64/kernel/setup64-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/signal.c => linux-2.6-xen-sparse/arch/x86_64/kernel/signal-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/smp.c => linux-2.6-xen-sparse/arch/x86_64/kernel/smp-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/traps.c => linux-2.6-xen-sparse/arch/x86_64/kernel/traps-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/vsyscall.c => linux-2.6-xen-sparse/arch/x86_64/kernel/vsyscall-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/x8664_ksyms.c => linux-2.6-xen-sparse/arch/x86_64/kernel/x8664_ksyms-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/kernel/xen_entry.S => linux-2.6-xen-sparse/arch/x86_64/kernel/xen_entry.S
rename : linux-2.6-xen-sparse/arch/xen/x86_64/mm/Makefile => linux-2.6-xen-sparse/arch/x86_64/mm/Makefile
rename : linux-2.6-xen-sparse/arch/xen/x86_64/mm/fault.c => linux-2.6-xen-sparse/arch/x86_64/mm/fault-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/mm/init.c => linux-2.6-xen-sparse/arch/x86_64/mm/init-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/mm/pageattr.c => linux-2.6-xen-sparse/arch/x86_64/mm/pageattr-xen.c
rename : linux-2.6-xen-sparse/arch/xen/x86_64/pci/Makefile => linux-2.6-xen-sparse/arch/x86_64/pci/Makefile
rename : linux-2.6-xen-sparse/arch/xen/kernel/Makefile => linux-2.6-xen-sparse/drivers/xen/core/Makefile
rename : linux-2.6-xen-sparse/arch/xen/kernel/evtchn.c => linux-2.6-xen-sparse/drivers/xen/core/evtchn.c
rename : linux-2.6-xen-sparse/arch/xen/kernel/features.c => linux-2.6-xen-sparse/drivers/xen/core/features.c
rename : linux-2.6-xen-sparse/arch/xen/kernel/gnttab.c => linux-2.6-xen-sparse/drivers/xen/core/gnttab.c
rename : linux-2.6-xen-sparse/arch/xen/kernel/reboot.c => linux-2.6-xen-sparse/drivers/xen/core/reboot.c
rename : linux-2.6-xen-sparse/arch/xen/kernel/skbuff.c => linux-2.6-xen-sparse/drivers/xen/core/skbuff.c
rename : linux-2.6-xen-sparse/arch/xen/kernel/smpboot.c => linux-2.6-xen-sparse/drivers/xen/core/smpboot.c
rename : linux-2.6-xen-sparse/arch/xen/kernel/xen_proc.c => linux-2.6-xen-sparse/drivers/xen/core/xen_proc.c
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/agp.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/agp.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/desc.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/desc.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/dma-mapping.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/dma-mapping.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/fixmap.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/fixmap.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/floppy.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/floppy.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/highmem.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/highmem.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/hw_irq.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/hw_irq.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/hypercall.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/hypercall.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/hypervisor.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/hypervisor.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/io.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/io.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/kmap_types.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/kmap_types.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/mmu.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/mmu.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/mmu_context.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/mmu_context.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/page.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/page.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/param.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/param.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/pci.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/pci.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/pgalloc.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/pgalloc.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/pgtable-2level-defs.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/pgtable-2level-defs.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/pgtable-2level.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/pgtable-2level.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/pgtable-3level-defs.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/pgtable-3level-defs.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/pgtable-3level.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/pgtable-3level.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/pgtable.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/pgtable.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/processor.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/processor.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/ptrace.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/ptrace.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/scatterlist.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/scatterlist.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/segment.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/segment.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/setup.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/setup.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/smp.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/smp.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/spinlock.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/spinlock.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/swiotlb.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/swiotlb.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/synch_bitops.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/synch_bitops.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/system.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/system.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/tlbflush.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/tlbflush.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/vga.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/vga.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/mach-xen/irq_vectors.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/irq_vectors.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/mach-xen/mach_traps.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/mach_traps.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/mach-xen/setup_arch_post.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/setup_arch_post.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-i386/mach-xen/setup_arch_pre.h => linux-2.6-xen-sparse/include/asm-i386/mach-xen/setup_arch_pre.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-ia64/fixmap.h => linux-2.6-xen-sparse/include/asm-ia64/fixmap.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-ia64/hypercall.h => linux-2.6-xen-sparse/include/asm-ia64/hypercall.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-ia64/hypervisor.h => linux-2.6-xen-sparse/include/asm-ia64/hypervisor.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-ia64/synch_bitops.h => linux-2.6-xen-sparse/include/asm-ia64/synch_bitops.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/arch_hooks.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/arch_hooks.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/bootsetup.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/bootsetup.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/desc.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/desc.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/dma-mapping.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/dma-mapping.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/fixmap.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/fixmap.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/floppy.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/floppy.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/hw_irq.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/hw_irq.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/hypercall.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/hypercall.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/hypervisor.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/hypervisor.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/io.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/io.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/irq.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/irq.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/mmu.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/mmu.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/mmu_context.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/mmu_context.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/nmi.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/nmi.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/page.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/page.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/param.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/param.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/pci.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/pci.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/pgalloc.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/pgalloc.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/pgtable.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/pgtable.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/processor.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/processor.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/ptrace.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/ptrace.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/segment.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/segment.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/smp.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/smp.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/synch_bitops.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/synch_bitops.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/system.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/system.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/timer.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/timer.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/tlbflush.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/tlbflush.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/vga.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/vga.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/xor.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/xor.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/mach-xen/io_ports.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/io_ports.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/mach-xen/irq_vectors.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/irq_vectors.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/mach-xen/mach_time.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/mach_time.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/mach-xen/mach_timer.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/mach_timer.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/mach-xen/setup_arch_post.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/setup_arch_post.h
rename : linux-2.6-xen-sparse/include/asm-xen/asm-x86_64/mach-xen/setup_arch_pre.h => linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/setup_arch_pre.h
rename : linux-2.6-xen-sparse/include/asm-xen/balloon.h => linux-2.6-xen-sparse/include/xen/balloon.h
rename : linux-2.6-xen-sparse/include/asm-xen/driver_util.h => linux-2.6-xen-sparse/include/xen/driver_util.h
rename : linux-2.6-xen-sparse/include/asm-xen/evtchn.h => linux-2.6-xen-sparse/include/xen/evtchn.h
rename : linux-2.6-xen-sparse/include/asm-xen/features.h => linux-2.6-xen-sparse/include/xen/features.h
rename : linux-2.6-xen-sparse/include/asm-xen/foreign_page.h => linux-2.6-xen-sparse/include/xen/foreign_page.h
rename : linux-2.6-xen-sparse/include/asm-xen/gnttab.h => linux-2.6-xen-sparse/include/xen/gnttab.h
rename : linux-2.6-xen-sparse/include/asm-xen/net_driver_util.h => linux-2.6-xen-sparse/include/xen/net_driver_util.h
rename : linux-2.6-xen-sparse/include/asm-xen/linux-public/evtchn.h => linux-2.6-xen-sparse/include/xen/public/evtchn.h
rename : linux-2.6-xen-sparse/include/asm-xen/linux-public/privcmd.h => linux-2.6-xen-sparse/include/xen/public/privcmd.h
rename : linux-2.6-xen-sparse/include/asm-xen/tpmfe.h => linux-2.6-xen-sparse/include/xen/tpmfe.h
rename : linux-2.6-xen-sparse/include/asm-xen/xen_proc.h => linux-2.6-xen-sparse/include/xen/xen_proc.h
rename : linux-2.6-xen-sparse/include/asm-xen/xenbus.h => linux-2.6-xen-sparse/include/xen/xenbus.h
rename : linux-2.6-xen-sparse/include/asm-xen/xencons.h => linux-2.6-xen-sparse/include/xen/xencons.h

1 files changed, 282 insertions, 0 deletions

diff --git a/linux-2.6-xen-sparse/arch/x86_64/kernel/ldt-xen.c b/linux-2.6-xen-sparse/arch/x86_64/kernel/ldt-xen.c
new file mode 100644
index 0000000000..6efbb64f80
--- /dev/null
+++ b/linux-2.6-xen-sparse/arch/x86_64/kernel/ldt-xen.c
@@ -0,0 +1,282 @@
+/*
+ * linux/arch/x86_64/kernel/ldt.c
+ *
+ * Copyright (C) 1992 Krishna Balasubramanian and Linus Torvalds
+ * Copyright (C) 1999 Ingo Molnar <mingo@redhat.com>
+ * Copyright (C) 2002 Andi Kleen
+ * 
+ * This handles calls from both 32bit and 64bit mode.
+ */
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <asm/ldt.h>
+#include <asm/desc.h>
+#include <asm/proto.h>
+#include <asm/pgalloc.h>
+
+#ifdef CONFIG_SMP /* avoids "defined but not used" warnig */
+static void flush_ldt(void *null)
+{
+	if (current->active_mm)
+               load_LDT(&current->active_mm->context);
+}
+#endif
+
+static int alloc_ldt(mm_context_t *pc, unsigned mincount, int reload)
+{
+	void *oldldt;
+	void *newldt;
+	unsigned oldsize;
+
+	if (mincount <= (unsigned)pc->size)
+		return 0;
+	oldsize = pc->size;
+	mincount = (mincount+511)&(~511);
+	if (mincount*LDT_ENTRY_SIZE > PAGE_SIZE)
+		newldt = vmalloc(mincount*LDT_ENTRY_SIZE);
+	else
+		newldt = kmalloc(mincount*LDT_ENTRY_SIZE, GFP_KERNEL);
+
+	if (!newldt)
+		return -ENOMEM;
+
+	if (oldsize)
+		memcpy(newldt, pc->ldt, oldsize*LDT_ENTRY_SIZE);
+	oldldt = pc->ldt;
+	memset(newldt+oldsize*LDT_ENTRY_SIZE, 0, (mincount-oldsize)*LDT_ENTRY_SIZE);
+	wmb();
+	pc->ldt = newldt;
+	wmb();
+	pc->size = mincount;
+	wmb();
+	if (reload) {
+#ifdef CONFIG_SMP
+		cpumask_t mask;
+
+		preempt_disable();
+#endif
+		make_pages_readonly(
+			pc->ldt,
+			(pc->size * LDT_ENTRY_SIZE) / PAGE_SIZE,
+			XENFEAT_writable_descriptor_tables);
+		load_LDT(pc);
+#ifdef CONFIG_SMP
+		mask = cpumask_of_cpu(smp_processor_id());
+		if (!cpus_equal(current->mm->cpu_vm_mask, mask))
+			smp_call_function(flush_ldt, NULL, 1, 1);
+		preempt_enable();
+#endif
+	}
+	if (oldsize) {
+		make_pages_writable(
+			oldldt,
+			(oldsize * LDT_ENTRY_SIZE) / PAGE_SIZE,
+			XENFEAT_writable_descriptor_tables);
+		if (oldsize*LDT_ENTRY_SIZE > PAGE_SIZE)
+			vfree(oldldt);
+		else
+			kfree(oldldt);
+	}
+	return 0;
+}
+
+static inline int copy_ldt(mm_context_t *new, mm_context_t *old)
+{
+	int err = alloc_ldt(new, old->size, 0);
+	if (err < 0)
+		return err;
+	memcpy(new->ldt, old->ldt, old->size*LDT_ENTRY_SIZE);
+	make_pages_readonly(
+		new->ldt,
+		(new->size * LDT_ENTRY_SIZE) / PAGE_SIZE,
+		XENFEAT_writable_descriptor_tables);
+	return 0;
+}
+
+/*
+ * we do not have to muck with descriptors here, that is
+ * done in switch_mm() as needed.
+ */
+int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
+{
+	struct mm_struct * old_mm;
+	int retval = 0;
+
+	memset(&mm->context, 0, sizeof(mm->context));
+	init_MUTEX(&mm->context.sem);
+	old_mm = current->mm;
+	if (old_mm && old_mm->context.size > 0) {
+		down(&old_mm->context.sem);
+		retval = copy_ldt(&mm->context, &old_mm->context);
+		up(&old_mm->context.sem);
+	}
+	if (retval == 0) {
+		spin_lock(&mm_unpinned_lock);
+		list_add(&mm->context.unpinned, &mm_unpinned);
+		spin_unlock(&mm_unpinned_lock);
+	}
+	return retval;
+}
+
+/*
+ * 
+ * Don't touch the LDT register - we're already in the next thread.
+ */
+void destroy_context(struct mm_struct *mm)
+{
+	if (mm->context.size) {
+		if (mm == current->active_mm)
+			clear_LDT();
+		make_pages_writable(
+			mm->context.ldt,
+			(mm->context.size * LDT_ENTRY_SIZE) / PAGE_SIZE,
+			XENFEAT_writable_descriptor_tables);
+		if (mm->context.size*LDT_ENTRY_SIZE > PAGE_SIZE)
+			vfree(mm->context.ldt);
+		else
+			kfree(mm->context.ldt);
+		mm->context.size = 0;
+	}
+	if (!mm->context.pinned) {
+		spin_lock(&mm_unpinned_lock);
+		list_del(&mm->context.unpinned);
+		spin_unlock(&mm_unpinned_lock);
+	}
+}
+
+static int read_ldt(void __user * ptr, unsigned long bytecount)
+{
+	int err;
+	unsigned long size;
+	struct mm_struct * mm = current->mm;
+
+	if (!mm->context.size)
+		return 0;
+	if (bytecount > LDT_ENTRY_SIZE*LDT_ENTRIES)
+		bytecount = LDT_ENTRY_SIZE*LDT_ENTRIES;
+
+	down(&mm->context.sem);
+	size = mm->context.size*LDT_ENTRY_SIZE;
+	if (size > bytecount)
+		size = bytecount;
+
+	err = 0;
+	if (copy_to_user(ptr, mm->context.ldt, size))
+		err = -EFAULT;
+	up(&mm->context.sem);
+	if (err < 0)
+		goto error_return;
+	if (size != bytecount) {
+		/* zero-fill the rest */
+		if (clear_user(ptr+size, bytecount-size) != 0) {
+			err = -EFAULT;
+			goto error_return;
+		}
+	}
+	return bytecount;
+error_return:
+	return err;
+}
+
+static int read_default_ldt(void __user * ptr, unsigned long bytecount)
+{
+	/* Arbitrary number */ 
+	/* x86-64 default LDT is all zeros */
+	if (bytecount > 128) 
+		bytecount = 128; 	
+	if (clear_user(ptr, bytecount))
+		return -EFAULT;
+	return bytecount; 
+}
+
+static int write_ldt(void __user * ptr, unsigned long bytecount, int oldmode)
+{
+	struct task_struct *me = current;
+	struct mm_struct * mm = me->mm;
+	__u32 entry_1, entry_2, *lp;
+	unsigned long mach_lp;
+	int error;
+	struct user_desc ldt_info;
+
+	error = -EINVAL;
+
+	if (bytecount != sizeof(ldt_info))
+		goto out;
+	error = -EFAULT; 	
+	if (copy_from_user(&ldt_info, ptr, bytecount))
+		goto out;
+
+	error = -EINVAL;
+	if (ldt_info.entry_number >= LDT_ENTRIES)
+		goto out;
+	if (ldt_info.contents == 3) {
+		if (oldmode)
+			goto out;
+		if (ldt_info.seg_not_present == 0)
+			goto out;
+	}
+
+	down(&mm->context.sem);
+	if (ldt_info.entry_number >= (unsigned)mm->context.size) {
+		error = alloc_ldt(&current->mm->context, ldt_info.entry_number+1, 1);
+		if (error < 0)
+			goto out_unlock;
+	}
+
+	lp = (__u32 *) ((ldt_info.entry_number << 3) + (char *) mm->context.ldt);
+ 	mach_lp = arbitrary_virt_to_machine(lp);
+
+   	/* Allow LDTs to be cleared by the user. */
+   	if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
+		if (oldmode || LDT_empty(&ldt_info)) {
+			entry_1 = 0;
+			entry_2 = 0;
+			goto install;
+		}
+	}
+
+	entry_1 = LDT_entry_a(&ldt_info);
+	entry_2 = LDT_entry_b(&ldt_info);
+	if (oldmode)
+		entry_2 &= ~(1 << 20);
+
+	/* Install the new entry ...  */
+install:
+	error = HYPERVISOR_update_descriptor(mach_lp, (unsigned long)((entry_1 | (unsigned long) entry_2 << 32)));
+
+out_unlock:
+	up(&mm->context.sem);
+out:
+	return error;
+}
+
+asmlinkage int sys_modify_ldt(int func, void __user *ptr, unsigned long bytecount)
+{
+	int ret = -ENOSYS;
+
+	switch (func) {
+	case 0:
+		ret = read_ldt(ptr, bytecount);
+		break;
+	case 1:
+		ret = write_ldt(ptr, bytecount, 1);
+		break;
+	case 2:
+		ret = read_default_ldt(ptr, bytecount);
+		break;
+	case 0x11:
+		ret = write_ldt(ptr, bytecount, 0);
+		break;
+	}
+	return ret;
+}