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a387e95a49
linux/arch/x86/include/asm
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David Rientjes a387e95a49 x86, numa: Fix cpu to node mapping for sparse node ids 
NUMA boot code assumes that physical node ids start at 0, but the DIMMs
that the apic id represents may not be reachable.  If this is the case,
node 0 is never online and cpus never end up getting appropriately
assigned to a node.  This causes the cpumask of all online nodes to be
empty and machines crash with kernel code assuming online nodes have
valid cpus.

The fix is to appropriately map all the address ranges for physical nodes
and ensure the cpu to node mapping function checks all possible nodes (up
to MAX_NUMNODES) instead of simply checking nodes 0-N, where N is the
number of physical nodes, for valid address ranges.

This requires no longer "compressing" the address ranges of nodes in the
physical node map from 0-N, but rather leave indices in physnodes[] to
represent the actual node id of the physical node.  Accordingly, the
topology exported by both amd_get_nodes() and acpi_get_nodes() no longer
must return the number of nodes to iterate through; all such iterations
will now be to MAX_NUMNODES.

This change also passes the end address of system RAM (which may be
different from normal operation if mem= is specified on the command line)
before the physnodes[] array is populated.  ACPI parsed nodes are
truncated to fit within the address range that respect the mem=
boundaries and even some physical nodes may become unreachable in such
cases.

When NUMA emulation does succeed, any apicid to node mapping that exists
for unreachable nodes are given default values so that proximity domains
can still be assigned.  This is important for node_distance() to
function as desired.

Signed-off-by: David Rientjes <rientjes@google.com>
LKML-Reference: <alpine.DEB.2.00.1012221702090.3701@chino.kir.corp.google.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2010-12-23 15:27:16 -08:00
..
uv x86, UV: Update node controller MMRs 2010-11-10 10:06:38 +01:00
visws x86: Move pci init function to x86_init 2010-02-19 16:12:29 -08:00
xen Merge branch 'stable/xen-pcifront-0.8.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2010-10-28 17:11:17 -07:00
a.out-core.h hw-breakpoints: Fix broken a.out format dump 2009-11-10 11:23:05 +01:00
a.out.h
acpi.h x86, numa: Fix cpu to node mapping for sparse node ids 2010-12-23 15:27:16 -08:00
aes.h
agp.h
alternative-asm.h x86-64: Reduce SMP locks table size 2010-04-28 17:15:47 -07:00
alternative.h jump label: Base patch for jump label 2010-09-22 16:29:41 -04:00
amd_iommu_proto.h x86/amd-iommu: Update copyright headers 2010-10-13 11:13:21 +02:00
amd_iommu_types.h x86/amd-iommu: Update copyright headers 2010-10-13 11:13:21 +02:00
amd_iommu.h Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-21 14:23:48 -07:00
amd_nb.h x86, numa: Fix cpu to node mapping for sparse node ids 2010-12-23 15:27:16 -08:00
apb_timer.h x86, cleanup: Remove obsolete boot_cpu_id variable 2010-08-12 14:01:38 -07:00
apic.h x86: Address gcc4.6 "set but not used" warnings in apic.h 2010-11-09 18:40:30 +01:00
apicdef.h apic, x86: Check if EILVT APIC registers are available (AMD only) 2010-10-20 04:42:13 +02:00
apm.h
arch_hweight.h x86, hweight: Use a 32-bit popcnt for __arch_hweight32() 2010-05-17 15:17:16 -07:00
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
asm.h
atomic64_32.h x86-32: Rewrite 32-bit atomic64 functions in assembly 2010-02-25 20:47:30 -08:00
atomic64_64.h Merge branch 'x86-atomic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-05-18 08:40:05 -07:00
atomic.h Merge branch 'x86-atomic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-05-18 08:40:05 -07:00
auxvec.h
bios_ebda.h
bitops.h bitops: make asm-generic/bitops/find.h more generic 2010-10-09 21:51:44 +02:00
bitsperlong.h
boot.h x86: Clean up arch/x86/Kconfig* 2010-04-28 17:25:53 -07:00
bootparam.h x86, olpc: Add support for calling into OpenFirmware 2010-06-18 14:54:36 -07:00
bug.h x86: Convert BUG() to use unreachable() 2009-12-05 09:10:12 -08:00
bugs.h
byteorder.h
cache.h Rename .data.read_mostly to .data..read_mostly. 2010-03-03 11:26:00 +01:00
cacheflush.h Merge branch 'drm-for-2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2010-05-21 11:14:52 -07:00
calgary.h x86, iommu: Make all IOMMU's detection routines return a value. 2010-08-26 15:13:13 -07:00
calling.h x86, asm: Fix CFI macro invocations to deal with shortcomings in gas 2010-10-19 14:28:02 -07:00
checksum_32.h x86: fix csum_ipv6_magic asm memory clobber 2009-10-01 16:11:12 -07:00
checksum_64.h
checksum.h
cmpxchg_32.h x86, asm: Merge cmpxchg_486_u64() and cmpxchg8b_emu() 2010-07-28 17:05:11 -07:00
cmpxchg_64.h x86, asm: Clean up and simplify <asm/cmpxchg.h> 2010-07-28 15:24:09 -07:00
cmpxchg.h
compat.h compat: Make compat_alloc_user_space() incorporate the access_ok() 2010-09-14 16:08:45 -07:00
cpu.h x86, cleanup: Remove obsolete boot_cpu_id variable 2010-08-12 14:01:38 -07:00
cpufeature.h Merge branch 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-21 13:01:08 -07:00
cpumask.h
cputime.h
current.h
debugreg.h x86/debug: Clear reserved bits of DR6 in do_debug() 2010-01-29 02:26:10 +01:00
delay.h
desc_defs.h tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
desc.h x86: Make sure get_user_desc() doesn't sign extend. 2009-11-05 13:22:18 -08:00
device.h x86/amd-iommu: Use dev->arch->iommu to store iommu related information 2009-11-27 14:20:32 +01:00
div64.h
dma-mapping.h dma-mapping: remove dma_is_consistent API 2010-08-11 08:59:21 -07:00
dma.h
dmi.h
dwarf2.h x86: Use {push,pop}{l,q}_cfi in more places 2010-09-03 08:14:11 +02:00
e820.h x86, memblock: Use memblock_memory_size()/memblock_free_memory_size() to get correct dma_reserve 2010-08-27 11:13:54 -07:00
edac.h
efi.h x86, memblock: Replace e820_/_early string with memblock_ 2010-08-27 11:13:47 -07:00
elf.h x86: ELF_PLAT_INIT() shouldn't worry about TIF_IA32 2010-02-16 08:51:49 -08:00
emergency-restart.h
entry_arch.h Merge branches 'softirq-for-linus', 'x86-debug-for-linus', 'x86-numa-for-linus', 'x86-quirks-for-linus', 'x86-setup-for-linus', 'x86-uv-for-linus' and 'x86-vm86-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-23 08:25:36 -07:00
errno.h
fb.h x86-64: Allow fbdev primary video code 2010-02-16 21:22:26 -08:00
fcntl.h
fixmap.h x86: Add two helper macros for fixed address mapping 2010-10-08 10:01:46 +02:00
floppy.h
frame.h
ftrace.h
futex.h
gart.h Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-21 14:23:48 -07:00
genapic.h
geode.h cs5535: drop the Geode-specific MFGPT/GPIO code 2009-12-15 08:53:28 -08:00
gpio.h
hardirq.h irq_work: Add generic hardirq context callbacks 2010-10-18 19:58:50 +02:00
highmem.h mm: stack based kmap_atomic() 2010-10-26 16:52:08 -07:00
hpet.h x86: ioapic/hpet: Convert to new chip functions 2010-10-12 16:53:37 +02:00
hugetlb.h
hw_breakpoint.h x86: Fix instruction breakpoint encoding 2010-09-17 03:24:13 +02:00
hw_irq.h Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-21 14:11:46 -07:00
hypertransport.h
hyperv.h x86: Clean up the hypervisor layer 2010-05-07 17:13:04 -07:00
hypervisor.h x86: early PV on HVM features initialization. 2010-07-22 16:45:35 -07:00
i387.h Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-21 13:34:32 -07:00
i8253.h i8253: Convert i8253_lock to raw_spinlock 2010-03-02 10:28:38 +01:00
i8259.h x86: i8259: Convert to new irq_chip functions 2010-10-12 16:53:36 +02:00
ia32_unistd.h
ia32.h
idle.h
inat_types.h
inat.h x86: AVX instruction set decoder support 2009-10-29 08:47:46 +01:00
init.h
insn.h x86: Move MAX_INSN_SIZE into asm/insn.h 2010-03-10 13:23:34 +01:00
inst.h crypto: aesni-intel - Fix another CTR build failure with gas 2.16.1 2010-03-24 21:37:57 +08:00
intel_scu_ipc.h Remove indirect read write api support. 2010-08-03 09:50:30 -04:00
io_apic.h x86/io_apic: add get_nr_irqs_gsi() 2010-10-18 10:40:30 -04:00
io.h Merge branch 'stable/xen-pcifront-0.8.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2010-10-28 17:11:17 -07:00
ioctl.h
ioctls.h
iomap.h mm: stack based kmap_atomic() 2010-10-26 16:52:08 -07:00
iommu_table.h x86, iommu: Update header comments with appropriate naming 2010-10-08 13:11:21 -07:00
iommu.h x86: Move iommu_shutdown_noop to x86_init.c 2009-11-15 09:03:10 +01:00
ipcbuf.h
ipi.h
irq_regs.h
irq_remapping.h x86: Speed up the irq_remapped check in hot pathes 2010-10-12 16:53:42 +02:00
irq_vectors.h irq_work: Add generic hardirq context callbacks 2010-10-18 19:58:50 +02:00
irq.h x86-32: Allocate irq stacks seperate from percpu area 2010-10-27 17:31:42 +02:00
irqflags.h Fix IRQ flag handling naming 2010-10-07 14:08:55 +01:00
ist.h
jump_label.h jump label: Remove duplicate structure for x86 2010-09-22 17:37:43 -04:00
Kbuild archs: replace unifdef-y with header-y 2010-08-14 22:26:51 +02:00
kdebug.h x86, UV: Make kdump avoid stack dumps - fix !CONFIG_KEXEC breakage 2010-08-12 12:23:55 -07:00
kexec.h
kgdb.h kgdb,x86: Individual register get/set for x86 2010-08-05 09:22:20 -05:00
kmap_types.h
kmemcheck.h
kprobes.h x86: Move MAX_INSN_SIZE into asm/insn.h 2010-03-10 13:23:34 +01:00
kvm_emulate.h KVM: x86 emulator: Expose emulate_int_real() 2010-10-24 10:53:00 +02:00
kvm_host.h KVM: x86: TSC catchup mode 2010-10-24 10:53:05 +02:00
kvm_para.h KVM: Move kvm_guest_init out of generic code 2010-10-24 10:50:49 +02:00
kvm.h KVM: x86: XSAVE/XRSTOR live migration support 2010-08-01 10:46:37 +03:00
ldt.h
lguest_hcall.h lguest: stop using KVM hypercall mechanism 2010-04-14 21:43:56 +09:30
lguest.h
linkage.h
local64.h arch: Implement local64_t 2010-06-09 11:12:36 +02:00
local.h local_t: Remove cpu_local_xx macros 2010-01-05 15:34:49 +09:00
mach_timer.h
mach_traps.h
math_emu.h
mc146818rtc.h
mca_dma.h
mca.h
mce.h x86, mce: Fix MSR_IA32_MCI_CTL2 CMCI threshold setup 2010-06-10 21:27:36 -07:00
memblock.h x86-32, memblock: Make add_highpages honor early reserved ranges 2010-10-05 21:44:35 -07:00
microcode.h Revert "x86: ucode-amd: Load ucode-patches once ..." 2010-01-23 06:21:59 +01:00
mman.h
mmconfig.h
mmu_context.h
mmu.h
mmx.h
mmzone_32.h tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
mmzone_64.h x86, numa: Add fixed node size option for numa emulation 2010-02-15 14:34:10 -08:00
mmzone.h
module.h x86: Remove CONFIG_4KSTACKS 2010-06-29 12:12:59 +02:00
mpspec_def.h
mpspec.h x86, ioapic: Simplify probe_nr_irqs_gsi. 2010-05-04 13:35:11 -07:00
mrst.h x86, earlyprintk: Add hsu early console for Intel Medfield platform 2010-10-08 10:01:47 +02:00
msgbuf.h
mshyperv.h x86: Clean up the hypervisor layer 2010-05-07 17:13:04 -07:00
msidef.h
msr-index.h Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-27 18:48:00 -07:00
msr.h x86, gcc-4.6: Avoid unused by set variables in rdmsr 2010-07-20 15:38:18 -07:00
mtrr.h
mutex_32.h
mutex_64.h
mutex.h
mwait.h x86, mwait: Move mwait constants to a common header file 2010-09-17 15:36:40 -07:00
nmi.h lockup_detector: Combine nmi_watchdog and softlockup detector 2010-05-12 23:55:33 +02:00
nops.h
numa_32.h
numa_64.h x86, numa: Reduce minimum fake node size to 32M 2010-12-23 15:27:10 -08:00
numa.h
numaq.h Merge branch 'x86-mrst-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-07 15:59:39 -08:00
olpc_ofw.h x86, olpc: Rework BIOS signature check 2010-09-23 11:15:00 -07:00
olpc.h Add OLPC XO-1 rfkill driver 2010-10-21 10:10:44 -04:00
page_32_types.h x86: Remove CONFIG_4KSTACKS 2010-06-29 12:12:59 +02:00
page_32.h
page_64_types.h
page_64.h
page_types.h x86-32: Fix sparse warning for the __PHYSICAL_MASK calculation 2010-10-07 16:36:17 -07:00
page.h x86: Document __phys_reloc_hide() usage in __pa_symbol() 2010-08-11 08:43:49 +02:00
param.h
paravirt_types.h x86, paravirt: Remove alloc_pmd_clone hook, only used by VMI 2010-08-23 17:09:44 -07:00
paravirt.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-irqflags 2010-10-21 14:37:27 -07:00
parport.h
pat.h x86, platform: Change is_untracked_pat_range() to bool; cleanup init 2009-11-23 17:09:59 -08:00
pci_64.h x86: Only call dma32_reserve_bootmem 64bit !CONFIG_NUMA 2010-02-10 17:47:18 -08:00
pci_x86.h x86/PCI: Clean up pci_cache_line_size 2010-10-18 10:49:30 -04:00
pci-direct.h
pci-functions.h
pci.h x86: Introduce x86_msi_ops 2010-10-18 10:49:34 -04:00
percpu.h x86, percpu: Optimize this_cpu_ptr 2010-09-10 10:56:47 +02:00
perf_event_p4.h perf, x86, Pentium4: Add RAW events verification 2010-09-01 08:26:56 +02:00
perf_event.h oprofile, x86: Add support for IBS periodic op counter extension 2010-10-15 12:50:43 +02:00
pgalloc.h x86, mm: Allow highmem user page tables to be disabled at boot time 2010-02-25 10:28:19 +01:00
pgtable_32_types.h x86: use __ASSEMBLY__ rather than __ASSEMBLER__ 2010-06-07 17:27:11 -07:00
pgtable_32.h mm: remove pte_*map_nested() 2010-10-26 16:52:08 -07:00
pgtable_64_types.h
pgtable_64.h mm: remove pte_*map_nested() 2010-10-26 16:52:08 -07:00
pgtable_types.h
pgtable-2level_types.h
pgtable-2level.h
pgtable-3level_types.h
pgtable-3level.h
pgtable.h x86, mm: Hold mm->page_table_lock while doing vmalloc_sync 2010-10-19 13:57:08 -07:00
poll.h
posix_types_32.h
posix_types_64.h
posix_types.h
prctl.h
processor-cyrix.h
processor-flags.h
processor.h Merge branch 'x86-idle-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-21 13:45:38 -07:00
proto.h Move round_up/down to kernel.h 2010-02-12 09:42:39 -08:00
ptrace-abi.h x86, perf, bts, mm: Delete the never used BTS-ptrace code 2010-03-26 11:33:55 +01:00
ptrace.h x86, perf, bts, mm: Delete the never used BTS-ptrace code 2010-03-26 11:33:55 +01:00
pvclock-abi.h x86, paravirt: don't compute pvclock adjustments if we trust the tsc 2010-05-19 11:41:05 +03:00
pvclock.h x86: pvclock: Move scale_delta into common header 2010-10-24 10:51:24 +02:00
reboot_fixups.h
reboot.h
required-features.h x86, cpu: Support the features flags in new CPUID leaf 7 2010-07-07 17:29:18 -07:00
resource.h
resume-trace.h
rio.h
rtc.h
rwlock.h
rwsem.h x86, rwsem: Minor cleanups 2010-07-20 17:41:14 -07:00
scatterlist.h remove needless ISA_DMA_THRESHOLD 2010-08-07 18:15:50 +02:00
seccomp_32.h
seccomp_64.h
seccomp.h
sections.h x86-64: align RODATA kernel section to 2MB with CONFIG_DEBUG_RODATA 2009-10-20 14:46:00 +09:00
segment.h x86, asm: Fix CFI macro invocations to deal with shortcomings in gas 2010-10-19 14:28:02 -07:00
sembuf.h
serial.h
setup_arch.h
setup.h x86: add RESERVE_BRK_ARRAY() helper 2010-10-22 12:57:17 -07:00
shmbuf.h
shmparam.h
sigcontext32.h
sigcontext.h tree-wide: fix misspelling of "definition" in comments 2009-12-04 23:41:47 +01:00
sigframe.h
siginfo.h
signal.h
smp.h x86, kexec: Make sure to stop all CPUs before exiting the kernel 2010-10-21 13:30:44 -07:00
smpboot_hooks.h
socket.h
sockios.h
sparsemem.h
spinlock_types.h locking: Convert raw_rwlock to arch_rwlock 2009-12-14 23:55:32 +01:00
spinlock.h locking: Convert raw_rwlock functions to arch_rwlock 2009-12-14 23:55:32 +01:00
srat.h
stackprotector.h
stacktrace.h perf: Drop the skip argument from perf_arch_fetch_regs_caller 2010-06-08 23:31:27 +02:00
stat.h
statfs.h
string_32.h
string_64.h
string.h
suspend_32.h PM / x86: Save/restore MISC_ENABLE register 2010-06-08 00:32:49 +02:00
suspend_64.h PM / x86: Save/restore MISC_ENABLE register 2010-06-08 00:32:49 +02:00
suspend.h
svm.h KVM: x86: Push potential exception error code on task switches 2010-05-17 12:17:46 +03:00
swab.h
swiotlb.h x86, swiotlb: Simplify SWIOTLB pci_swiotlb_detect routine. 2010-08-26 15:13:29 -07:00
sync_bitops.h
sys_ia32.h Mark arguments to certain syscalls as being const 2010-08-13 16:53:13 -07:00
syscall.h tracing: Unify arch_syscall_addr() implementations 2010-02-17 13:07:21 +01:00
syscalls.h Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
system_64.h
system.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-08-04 11:47:58 -07:00
tce.h
termbits.h
termios.h
thread_info.h Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 2010-05-28 16:14:17 -07:00
time.h
timer.h
timex.h
tlb.h
tlbflush.h x86-32, mm: Add an initial page table for core bootstrapping 2010-10-20 14:23:55 -07:00
topology.h numa: x86_64: use generic percpu var numa_node_id() implementation 2010-05-27 09:12:57 -07:00
trampoline.h x86-32, mm: Add an initial page table for core bootstrapping 2010-10-20 14:23:55 -07:00
traps.h x86: Merge simd_math_error() into math_error() 2010-05-03 13:39:29 -07:00
tsc.h x86, tsc, sched: Recompute cyc2ns_offset's during resume from sleep states 2010-08-20 14:59:02 +02:00
types.h
uaccess_32.h x86: copy_from_user() should not return -EFAULT 2010-01-05 13:45:06 -08:00
uaccess_64.h Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-02-28 10:35:09 -08:00
uaccess.h x86, 64-bit: Move K8 B step iret fixup to fault entry asm 2009-10-12 18:29:46 +02:00
ucontext.h
unaligned.h
unistd_32.h Merge branch 'writable_limits' of git://decibel.fi.muni.cz/~xslaby/linux 2010-08-10 12:07:51 -07:00
unistd_64.h Merge branch 'writable_limits' of git://decibel.fi.muni.cz/~xslaby/linux 2010-08-10 12:07:51 -07:00
unistd.h
user32.h
user_32.h
user_64.h
user.h x86, ptrace: regset extensions to support xstate 2010-02-11 15:08:17 -08:00
vdso.h
vga.h
vgtod.h
virtext.h
vm86.h
vmx.h KVM: VMX: Enable XSAVE/XRSTOR for guest 2010-08-01 10:46:31 +03:00
vsyscall.h
x86_init.h x86: Introduce x86_msi_ops 2010-10-18 10:49:34 -04:00
xcr.h
xor_32.h
xor_64.h
xor.h
xsave.h Merge branch 'x86-xsave-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-08-06 16:25:13 -07:00