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dafe41ee3a
linux/arch/x86_64/kernel
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Vivek Goyal dafe41ee3a [PATCH] x86-64: Kill temp boot pmds 
Early in the boot process we need the ability to set
up temporary mappings, before our normal mechanisms are
initialized.  Currently this is used to map pages that
are part of the page tables we are building and pages
during the dmi scan.

The core problem is that we are using the user portion of
the page tables to implement this.  Which means that while
this mechanism is active we cannot catch NULL pointer dereferences
and we deviate from the normal ways of handling things.

In this patch I modify early_ioremap to map pages into
the kernel portion of address space, roughly where
we will later put modules, and I make the discovery of
which addresses we can use dynamic which removes all
kinds of static limits and remove the dependencies
on implementation details between different parts of the code.

Now alloc_low_page() and unmap_low_page() use
early_iomap() and early_iounmap() to allocate/map and
unmap a page.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
2007-05-02 19:27:06 +02:00
..
acpi [PATCH] Revert "swsusp: disable nonboot CPUs before entering platform suspend" 2007-03-27 09:20:03 -07:00
cpufreq [PATCH] X86_P4_CLOCKMOD must select CPU_FREQ_TABLE 2007-03-18 11:35:07 -07:00
aperture.c [PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing conf1 2006-09-26 10:52:41 +02:00
apic.c [PATCH] x86-64: fix cpu MHz reporting on constant_tsc cpus 2007-05-02 19:27:06 +02:00
asm-offsets.c [CRYPTO] all: Pass tfm instead of ctx to algorithms 2006-06-26 17:34:39 +10:00
audit.c [PATCH] audit: AUDIT_PERM support 2006-09-11 13:32:30 -04:00
crash_dump.c
crash.c [PATCH] Kexec / Kdump: Unify elf note code 2006-12-07 08:39:46 -08:00
e820.c [PATCH] x86-64: fix section mismatch warnings 2007-03-16 21:07:36 +01:00
early_printk.c [PATCH] x86_64: fix 'earlyprintk=...,keep' regression 2006-11-28 10:58:21 -08:00
early-quirks.c [PATCH] x86: revert x86_64-mm-fix-the-irqbalance-quirk-for-e7320-e7520-e7525 2007-05-02 19:27:04 +02:00
entry.S [PATCH] x86-64: a few missing entry.S annotations 2007-05-02 19:27:05 +02:00
functionlist [NET]: Get rid of alloc_skb_from_cache 2007-04-17 13:13:16 -07:00
genapic_flat.c [PATCH] x86: adjust inclusion of asm/fixmap.h 2007-05-02 19:27:04 +02:00
genapic.c [PATCH] x86: adjust inclusion of asm/fixmap.h 2007-05-02 19:27:04 +02:00
head64.c [PATCH] Dynamic kernel command-line: fixups 2007-02-12 09:48:39 -08:00
head.S [PATCH] x86-64: Kill temp boot pmds 2007-05-02 19:27:06 +02:00
hpet.c failsafe mechanism to HPET clock calibration 2007-04-14 21:44:03 -07:00
i387.c [PATCH] x86-64: use BUILD_BUG_ON in FPU code 2006-12-07 02:14:01 +01:00
i8259.c [PATCH] x86_64 irq: Fix comments after changing IRQ0_VECTOR from 0x20 to 0x30 2007-03-29 08:16:23 -07:00
init_task.c [PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.c 2006-10-02 07:57:20 -07:00
io_apic.c [PATCH] x86_64: remove unusued 'flags' variable 2007-03-05 07:57:53 -08:00
ioport.c [PATCH] x86-64: Use constant instead of raw number in x86_64 ioperm.c 2007-02-13 13:26:22 +01:00
irq.c [PATCH] x86-64: survive having no irq mapping for a vector 2007-02-13 13:26:25 +01:00
k8.c cache_k8_northbridges() overflows beyond allocation 2007-04-16 18:09:18 -07:00
kprobes.c [PATCH] kprobes: enable booster on the preemptible kernel 2006-12-07 08:39:38 -08:00
ldt.c
machine_kexec.c [PATCH] Avoid overwriting the current pgd (V4, x86_64) 2006-09-26 10:52:38 +02:00
Makefile [PATCH] x86-64: remove clustered APIC mode 2007-05-02 19:27:04 +02:00
mce_amd.c [PATCH] x86-64: Allow to run a program when a machine check event is detected 2007-02-13 13:26:23 +01:00
mce_intel.c [PATCH] x86: Add a cumulative thermal throttle event counter. 2006-09-26 10:52:42 +02:00
mce.c [PATCH] x86-64: Allow to run a program when a machine check event is detected 2007-02-13 13:26:23 +01:00
module.c [PATCH] Generic BUG for x86-64 2006-12-08 08:28:39 -08:00
mpparse.c [PATCH] x86: default to physical mode on hotplug CPU kernels 2007-05-02 19:27:04 +02:00
nmi.c [PATCH] x86-64: x86_64 make NMI use PERFCTR1 for architectural perfmon (take 2) 2007-05-02 19:27:05 +02:00
pci-calgary.c [PATCH] x86-64: dma_ops as const 2007-05-02 19:27:06 +02:00
pci-dma.c [PATCH] x86-64: improved iommu documentation 2007-02-13 13:26:21 +01:00
pci-gart.c [PATCH] x86-64: dma_ops as const 2007-05-02 19:27:06 +02:00
pci-nommu.c [PATCH] x86-64: dma_ops as const 2007-05-02 19:27:06 +02:00
pci-swiotlb.c [PATCH] x86-64: dma_ops as const 2007-05-02 19:27:06 +02:00
pmtimer.c [PATCH] time: x86_64: convert x86_64 to use GENERIC_TIME 2007-02-16 08:14:00 -08:00
process.c [PATCH] Fix atomicity of TIF update in flush_thread() for x86_64 2007-03-18 11:35:08 -07:00
ptrace.c [PATCH] x86-64: Check return value of putreg in PTRACE_SETREGS 2007-02-13 13:26:24 +01:00
reboot.c [PATCH] x86_64: Move export symbols to their C functions 2006-06-26 10:48:22 -07:00
relocate_kernel.S [PATCH] Avoid overwriting the current pgd (V4, x86_64) 2006-09-26 10:52:38 +02:00
setup64.c [PATCH] x86-64: Unexport __supported_pte_mask 2007-02-13 13:26:24 +01:00
setup.c [PATCH] x86: Unify pcspeaker platform device code between i386/x86-64 2007-02-13 13:26:26 +01:00
signal.c [PATCH] Remove all traces of signal number conversion 2006-09-26 10:52:41 +02:00
smp.c [PATCH] x86: consolidate smp_send_stop() 2007-05-02 19:27:05 +02:00
smpboot.c [PATCH] x86: revert x86_64-mm-fix-the-irqbalance-quirk-for-e7320-e7520-e7525 2007-05-02 19:27:04 +02:00
stacktrace.c [PATCH] x86-64: do not always end the stack trace with ULONG_MAX 2007-02-13 13:26:21 +01:00
suspend_asm.S [PATCH] Change the name of pagedir_nosave 2006-09-26 08:49:01 -07:00
suspend.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
sys_x86_64.c [PATCH] namespaces: utsname: switch to using uts namespaces 2006-10-02 07:57:21 -07:00
syscall.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
tce.c Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
time.c [PATCH] x86-64: fix cpu MHz reporting on constant_tsc cpus 2007-05-02 19:27:06 +02:00
trampoline.S [PATCH] Fix gdt table size in trampoline.S 2006-09-26 10:52:32 +02:00
traps.c [PATCH] x86: Fix i386 and x86_64 fault information pollution 2007-05-02 19:27:05 +02:00
tsc_sync.c [PATCH] x86-64: fix cpu MHz reporting on constant_tsc cpus 2007-05-02 19:27:06 +02:00
tsc.c [PATCH] x86-64: fix cpu MHz reporting on constant_tsc cpus 2007-05-02 19:27:06 +02:00
vmlinux.lds.S [PATCH] x86: Fix gcc 4.2 _proxy_pda workaround 2007-04-16 10:30:27 +02:00
vsmp.c [PATCH] Fix build breakage with CONFIG_X86_VSMP 2006-10-12 12:25:27 -07:00
vsyscall.c [PATCH] misc NULL noise 2007-03-14 15:27:49 -07:00
x8664_ksyms.c [PATCH] x86: Export _proxy_pda for gcc 4.2 2007-03-16 21:07:36 +01:00