Thomas Gleixner 31eedd823c x86: zap invalid and unused pmds in early boot ... The early boot code maps KERNEL_TEXT_SIZE (currently 40MB) starting from __START_KERNEL_map. The kernel itself only needs _text to _end mapped in the high alias. On relocatible kernels the ASM setup code adjusts the compile time created high mappings to the relocation. This creates invalid pmd entries for negative offsets: 0xffffffff80000000 -> pmd entry: ffffffffff2001e3 It points outside of the physical address space and is marked present. This starts at the virtual address __START_KERNEL_map and goes up to the point where the first valid physical address (0x0) is mapped. Zap the mappings before _text and after _end right away in early boot. This removes also the invalid entries. Furthermore it simplifies the range check for high aliases. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>		2008-02-18 20:54:14 +01:00
..
mach-bigsmp
mach-default
mach-es7000
mach-generic	x86: add generic GPIO support to x86	2008-01-30 13:33:35 +01:00
mach-numaq	x86: move NUMAQ io handling into arch/x86/pci/numa.c	2008-02-04 16:48:03 +01:00
mach-rdc321x	x86: add support for the RDC R-321x SoC	2008-01-30 13:33:36 +01:00
mach-summit
mach-visws
mach-voyager	time: delete comments that refer to noexistent symbols	2008-02-03 16:20:13 +02:00
xen
a.out-core.h	aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUT	2008-02-08 09:22:30 -08:00
a.out.h	aout: move STACK_TOP[_MAX] to asm/processor.h	2008-02-08 09:22:29 -08:00
acpi.h	x86: fix sparse warnings in acpi/bus.c	2008-02-09 23:24:08 +01:00
agp.h	x86: remove flush_agp_mappings()	2008-01-30 13:34:07 +01:00
alternative-asm.h
alternative.h
apic.h
apicdef.h
arch_hooks.h
asm.h	x86: add _ASM_EXTABLE macro to <asm/asm.h>	2008-02-04 16:47:56 +01:00
atomic_32.h
atomic_64.h
atomic.h
auxvec.h
bitops_32.h
bitops_64.h	iommu sg: kill __clear_bit_string and find_next_zero_string	2008-02-05 09:44:11 -08:00
bitops.h
boot.h
bootparam.h
bug.h
bugs.h	x86: add include to cpu/intel.c	2008-02-04 16:48:04 +01:00
byteorder.h
cache.h
cacheflush.h	x86: include proper prototypes for rodata_test	2008-02-14 23:30:20 +01:00
calgary.h
calling.h
checksum_32.h
checksum_64.h
checksum.h
cmpxchg_32.h
cmpxchg_64.h	Add cmpxchg64 and cmpxchg64_local to x86_64	2008-02-07 08:42:31 -08:00
cmpxchg.h
compat.h	asm-*/compat.h: fix typo in comment	2008-02-03 16:32:51 +02:00
cpu.h	x86: avoid section mismatch involving arch_register_cpu	2008-02-01 17:49:43 +01:00
cpufeature.h	x86: add feature macros for the gbpages cpuid bit	2008-02-04 16:48:09 +01:00
cputime.h
current_32.h
current_64.h
current.h
debugreg.h
delay.h	Fix __const_udelay declaration and definition mismatches	2008-02-06 10:41:06 -08:00
desc_64.h
desc_defs.h
desc.h
device.h
div64.h
dma-mapping_32.h
dma-mapping_64.h
dma-mapping.h
dma.h
dmi.h	x86 32-bit boot: rename bt_ioremap() to early_ioremap()	2008-01-30 13:33:44 +01:00
ds.h
dwarf2_32.h
dwarf2_64.h
dwarf2.h
e820_32.h	x86_32: trim memory by updating e820	2008-01-30 13:33:32 +01:00
e820_64.h	x86_64: make bootmap_start page align v6	2008-02-01 17:49:41 +01:00
e820.h	x86: fix the missing BIOS area check in page_is_ram	2008-01-30 13:34:06 +01:00
edac.h
efi.h	x86: fix EFI mapping	2008-02-04 16:48:06 +01:00
elf.h	Cleanup asm/{elf,page,user}.h: #ifdef __KERNEL__ is no longer needed	2008-02-07 08:42:30 -08:00
emergency-restart.h
errno.h
fb.h
fcntl.h
fixmap_32.h	x86: early boot debugging via FireWire (ohci1394_dma=early)	2008-01-30 13:34:11 +01:00
fixmap_64.h	x86: early boot debugging via FireWire (ohci1394_dma=early)	2008-01-30 13:34:11 +01:00
fixmap.h
floppy.h
frame.h
futex.h	x86: use _ASM_EXTABLE macro in include/asm-x86/futex.h	2008-02-04 16:47:58 +01:00
gart.h
genapic_32.h
genapic_64.h
genapic.h
geode.h	x86: GEODE: MFGPT: Use "just-in-time" detection for the MFGPT timers	2008-02-09 23:24:08 +01:00
gpio.h	x86: add generic GPIO support to x86	2008-01-30 13:33:35 +01:00
hardirq_32.h
hardirq_64.h
hardirq.h
highmem.h	i386: Resolve dependency of asm-i386/pgtable.h on highmem.h	2008-02-05 09:44:14 -08:00
hpet.h	x86, rtc: make CONFIG_HPET_EMULATE_RTC usable from modules	2008-01-30 13:33:28 +01:00
hw_irq_32.h	x86: remove final FASTCALL() uses	2008-02-04 16:48:03 +01:00
hw_irq_64.h
hw_irq.h
hypertransport.h
i387.h	x86: use _ASM_EXTABLE macro in include/asm-x86/i387.h	2008-02-04 16:47:58 +01:00
i8253.h
i8259.h
ia32_unistd.h
ia32.h
ide.h
idle.h
intel_arch_perfmon.h
io_32.h	x86: remove special NUMAQ support in io_32.h	2008-02-04 16:48:03 +01:00
io_64.h	x86: make ioremap() UC by default	2008-01-30 13:34:09 +01:00
io_apic.h
io.h
ioctl.h
ioctls.h
iommu.h
ipcbuf.h
ipi.h
irq_32.h
irq_64.h
irq_regs_32.h
irq_regs_64.h
irq_regs.h
irq.h
irqflags.h
ist.h
k8.h
Kbuild	Unexport asm/user.h and linux/user.h	2008-02-07 08:42:29 -08:00
kdebug.h	x86: make dump_pagetable() static	2008-02-14 23:30:19 +01:00
kexec.h
kmap_types.h
kprobes.h
kvm_host.h	KVM: x86 emulator: Only allow VMCALL/VMMCALL trapped by #UD	2008-01-30 18:01:21 +02:00
kvm_para.h	KVM: Per-architecture hypercall definitions	2008-01-30 17:52:55 +02:00
kvm_x86_emulate.h	KVM: Move arch dependent files to new directory arch/x86/kvm/	2008-01-30 18:01:18 +02:00
kvm.h	KVM: Portability: Move kvm_fpu to asm-x86/kvm.h	2008-01-30 18:01:22 +02:00
ldt.h
lguest_hcall.h
lguest.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus	2008-01-31 09:35:32 +11:00
linkage.h
local.h
mach_apic.h
math_emu.h
mc146818rtc.h
mca_dma.h
mca.h
mce.h
mman.h
mmu_context_32.h
mmu_context_64.h
mmu_context.h
mmu.h
mmx.h
mmzone_32.h	Introduce flags for reserve_bootmem()	2008-02-07 08:42:25 -08:00
mmzone_64.h	x86: change size of node ids from u8 to s16	2008-01-30 13:33:25 +01:00
mmzone.h
module.h
mpspec_def.h
mpspec.h
msgbuf.h
msidef.h
msr-index.h
msr.h	x86: use _ASM_EXTABLE macro in include/asm-x86/msr.h	2008-02-04 16:47:58 +01:00
mtrr.h
mutex_32.h
mutex_64.h
mutex.h
namei.h
nmi_32.h
nmi_64.h
nmi.h
nops.h
numa_32.h	x86: arch/x86/mm/init_32.c cleanup	2008-01-30 13:34:10 +01:00
numa_64.h	x86: change size of node ids from u8 to s16	2008-01-30 13:33:25 +01:00
numa.h
numaq.h
page_32.h	x86: construct 32-bit boot time page tables in native format.	2008-02-09 23:24:09 +01:00
page_64.h	CONFIG_HIGHPTE vs. sub-page page tables.	2008-02-08 09:22:42 -08:00
page.h	x86: rename LARGE_PAGE_SIZE to PMD_PAGE_SIZE	2008-02-04 16:48:08 +01:00
param.h
paravirt.h	x86: add mm parameter to paravirt_alloc_pd	2008-01-30 13:33:39 +01:00
parport.h
pci_32.h
pci_64.h
pci-direct.h
pci.h
pda.h
percpu.h
pgalloc_32.h	CONFIG_HIGHPTE vs. sub-page page tables.	2008-02-08 09:22:42 -08:00
pgalloc_64.h	CONFIG_HIGHPTE vs. sub-page page tables.	2008-02-08 09:22:42 -08:00
pgalloc.h
pgtable_32.h	x86: construct 32-bit boot time page tables in native format.	2008-02-09 23:24:09 +01:00
pgtable_64.h	x86: zap invalid and unused pmds in early boot	2008-02-18 20:54:14 +01:00
pgtable-2level-defs.h
pgtable-2level.h	x86: clean up pte_exec	2008-01-30 13:33:42 +01:00
pgtable-3level-defs.h
pgtable-3level.h	x86: update reference for PAE tlb flushing	2008-02-04 16:48:02 +01:00
pgtable.h	x86: sparse warnings in pageattr.c	2008-02-09 23:24:08 +01:00
poll.h
posix_types_32.h	asm-*/posix_types.h: scrub __GLIBC__	2008-02-08 09:22:34 -08:00
posix_types_64.h
posix_types.h
prctl.h
processor-cyrix.h
processor-flags.h
processor.h	aout: move STACK_TOP[_MAX] to asm/processor.h	2008-02-08 09:22:29 -08:00
proto.h
ptrace-abi.h
ptrace.h
reboot_fixups.h
reboot.h
required-features.h
resource.h
resume-trace.h
rio.h
rtc.h
rwlock.h
rwsem.h
scatterlist.h
seccomp_32.h
seccomp_64.h
seccomp.h
sections.h
segment.h
semaphore_32.h
semaphore_64.h
semaphore.h
sembuf.h
serial.h
setup.h
shmbuf.h
shmparam.h
sigcontext32.h
sigcontext.h	x86: fix sigcontext.h user export	2008-02-13 16:20:35 +01:00
siginfo.h
signal.h
smp_32.h
smp_64.h
smp.h
socket.h	[NET]: Introducing socket mark socket option.	2008-01-31 19:27:19 -08:00
sockios.h
sparsemem.h
spinlock_types.h
spinlock.h
srat.h
stacktrace.h
stat.h
statfs.h
string_32.h	x86: sparse errors from string_32.h	2008-02-04 16:48:01 +01:00
string_64.h
string.h
suspend_32.h
suspend_64.h
suspend.h
swiotlb.h
sync_bitops.h
system_64.h
system.h	x86: remove final FASTCALL() uses	2008-02-04 16:48:03 +01:00
tce.h
termbits.h
termios.h	tty: fix tty network driver interactions with TCGET/TCSET calls (x86 fix)	2008-02-07 08:42:16 -08:00
therm_throt.h
thread_info_32.h
thread_info_64.h	x86: fix duplicated TIF on 64-bit	2008-01-30 23:27:57 +01:00
thread_info.h
time.h
timer.h
timex.h	read_current_timer() cleanups	2008-02-06 10:41:02 -08:00
tlb.h
tlbflush.h
topology.h	x86: change size of node ids from u8 to s16	2008-01-30 13:33:25 +01:00
tsc.h	x86: get_cycles() fix	2008-01-30 13:33:24 +01:00
types.h
uaccess_32.h	x86: use _ASM_EXTABLE macro in include/asm-x86/uaccess_32.h	2008-02-04 16:47:59 +01:00
uaccess_64.h	x86: use _ASM_EXTABLE macro in include/asm-x86/uaccess_64.h	2008-02-04 16:47:59 +01:00
uaccess.h
ucontext.h
unaligned.h
unistd_32.h	timerfd: wire the new timerfd API to the x86 family	2008-02-05 09:44:07 -08:00
unistd_64.h	timerfd: wire the new timerfd API to the x86 family	2008-02-05 09:44:07 -08:00
unistd.h
unwind.h
user32.h
user_32.h	Sanitize the type of struct user.u_ar0	2008-02-07 08:42:30 -08:00
user_64.h	Sanitize the type of struct user.u_ar0	2008-02-07 08:42:30 -08:00
user.h	Cleanup asm/{elf,page,user}.h: #ifdef __KERNEL__ is no longer needed	2008-02-07 08:42:30 -08:00
vdso.h
vga.h
vgtod.h
vic.h
vm86.h	x86: add function prototype to vm86.h	2008-02-04 16:48:04 +01:00
vmi_time.h
vmi.h
voyager.h
vsyscall.h
xor_32.h
xor_64.h
xor.h