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c6b4832432
kernel-ark/arch/x86/kernel
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Neil Horman c6b4832432 x86, kexec: force x86 arches to boot kdump kernels on boot cpu 
Recently a kdump bug was discovered in which a system would hang inside
calibrate_delay during the booting of the kdump kernel.  This was caused
by the fact that the jiffies counter was not being incremented during
timer calibration.  The root cause of this problem was found to be a
bios misconfiguration of the hypertransport bus.  On system affected by
this hang, the bios had assigned APIC ids which used extended apic bits
(more than the nominal 4 bit ids's), but failed to configure bit 17 of
the hypertransport transaction config register, which indicated that the
mask for the destination field of interrupt packets accross the ht bus
(see section 3.3.9 of
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/26094.PDF).
If a crash occurs on a cpu with an APIC id that extends beyond 4 bits,
it will not recieve interrupts during the kdump kernel boot, and this
hang will be the result.  The fix is to add this patch, whcih add an
early pci quirk check, to forcibly enable this bit in the httcfg
register.  This enables all cpus on a system to receive interrupts, and
allows kdump kernel bootup to procede normally.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30 13:31:25 +01:00
..
acpi x86: remove last users of FASTCALL 2008-01-30 13:31:16 +01:00
cpu x86-64: honor notify_die() returning NOTIFY_STOP 2008-01-30 13:31:23 +01:00
.gitignore
alternative.c x86: add set/clear_cpu_cap operations 2008-01-30 13:30:55 +01:00
aperture_64.c x86: clean up arch/x86/kernel/aperture_64.c printk()s 2008-01-30 13:30:10 +01:00
apic_32.c x86: adjust enable_NMI_through_LVT0() 2008-01-30 13:31:24 +01:00
apic_64.c x86: adjust enable_NMI_through_LVT0() 2008-01-30 13:31:24 +01:00
apm_32.c x86: unify desc_struct 2008-01-30 13:31:11 +01:00
asm-offsets_32.c x86: unify struct desc_ptr 2008-01-30 13:31:12 +01:00
asm-offsets_64.c x86: use generic register names in struct sigcontext 2008-01-30 13:30:56 +01:00
asm-offsets.c
audit_64.c
bootflag.c
bugs_64.c
cpuid.c PM: Acquire device locks on suspend 2008-01-24 20:40:04 -08:00
crash_dump_32.c
crash_dump_64.c
crash.c x86: disable hpet legacy replacement for kdump 2007-12-03 17:17:10 +01:00
doublefault_32.c x86: unify struct desc_ptr 2008-01-30 13:31:12 +01:00
ds.c x86, ptrace: new ptrace BTS API 2008-01-30 13:31:20 +01:00
e820_32.c x86 boot: use E820 memory map on EFI 32 platform 2008-01-30 13:31:19 +01:00
e820_64.c x86: prepare 64-bit architecture initialization for paravirt 2008-01-30 13:31:11 +01:00
early_printk.c
early-quirks.c x86, kexec: force x86 arches to boot kdump kernels on boot cpu 2008-01-30 13:31:25 +01:00
efi_32.c x86 boot: use E820 memory map on EFI 32 platform 2008-01-30 13:31:19 +01:00
efi_64.c x86: EFI runtime service support 2008-01-30 13:31:19 +01:00
efi_stub_32.S
efi_stub_64.S x86: EFI runtime service support 2008-01-30 13:31:19 +01:00
efi.c x86: EFI runtime service support 2008-01-30 13:31:19 +01:00
entry_32.S x86: move to .rodata/.init.data 2008-01-30 13:31:23 +01:00
entry_64.S sched: high-res preemption tick 2008-01-25 21:08:29 +01:00
genapic_64.c
genapic_flat_64.c
geode_32.c
head64.c x86: do not set boot cpu in cpu_online_map at x86_64_start_kernel() 2008-01-30 13:30:46 +01:00
head_32.S fix lguest rmmod "bad pgd" 2008-01-01 11:30:35 -08:00
head_64.S x86: turn priviled operation into a macro in head_64.S 2008-01-30 13:31:10 +01:00
hpet.c x86: remove duplicate includes 2008-01-30 13:30:32 +01:00
i386_ksyms_32.c x86: unexport __{read,write}_lock_failed 2008-01-30 13:30:29 +01:00
i387_32.c
i387_64.c x86: fix taking DNA during 64bit sigreturn 2007-11-12 11:09:33 -08:00
i8237.c Driver core: change sysdev classes to use dynamic kobject names 2008-01-24 20:40:40 -08:00
i8253.c mips, x86: optimize the i8259 code a bit 2008-01-30 13:30:47 +01:00
i8259_32.c x86: rename the struct pt_regs members for 32/64-bit consistency 2008-01-30 13:30:56 +01:00
i8259_64.c x86: move to .rodata/.init.data 2008-01-30 13:31:23 +01:00
init_task.c x86: nuke a ton of unused exports 2008-01-30 13:30:28 +01:00
io_apic_32.c x86: adjust enable_NMI_through_LVT0() 2008-01-30 13:31:24 +01:00
io_apic_64.c x86: adjust enable_NMI_through_LVT0() 2008-01-30 13:31:24 +01:00
io_delay.c x86: add DMI quirk for io-delay hangs on Compaq Presario V6000 laptops 2008-01-30 13:30:05 +01:00
ioport_32.c x86: rename the struct pt_regs members for 32/64-bit consistency 2008-01-30 13:30:56 +01:00
ioport_64.c x86: rename the struct pt_regs members for 32/64-bit consistency 2008-01-30 13:30:56 +01:00
irq_32.c x86: remove all definitions with fastcall 2008-01-30 13:31:17 +01:00
irq_64.c x86: rename the struct pt_regs members for 32/64-bit consistency 2008-01-30 13:30:56 +01:00
k8.c
kprobes.c x86: kprobes code for x86 unification 2008-01-30 13:31:21 +01:00
ldt.c x86: change write_ldt_entry signature 2008-01-30 13:31:13 +01:00
machine_kexec_32.c x86: unify struct desc_ptr 2008-01-30 13:31:12 +01:00
machine_kexec_64.c x86: 64-bit, make sparsemem vmemmap the only memory model 2008-01-30 13:30:47 +01:00
Makefile
Makefile_32 x86: kprobes code for x86 unification 2008-01-30 13:31:21 +01:00
Makefile_64 x86: kprobes code for x86 unification 2008-01-30 13:31:21 +01:00
mca_32.c
mfgpt_32.c x86: GEODE fix a race condition in the MFGPT timer tick 2008-01-22 23:30:16 +01:00
microcode.c cpu-hotplug: replace lock_cpu_hotplug() with get_online_cpus() 2008-01-25 21:08:02 +01:00
module_32.c
module_64.c
mpparse_32.c x86: 32-bit IOAPIC: de-fang IRQ compression 2008-01-30 13:31:02 +01:00
mpparse_64.c
msr.c PM: Acquire device locks on suspend 2008-01-24 20:40:04 -08:00
nmi_32.c x86: clean up nmi_32/64.c 2008-01-30 13:30:33 +01:00
nmi_64.c x86: clean up nmi_32/64.c 2008-01-30 13:30:33 +01:00
numaq_32.c
paravirt_32.c x86: change write_ldt_entry signature 2008-01-30 13:31:13 +01:00
pci-calgary_64.c x86: remove duplicate includes 2008-01-30 13:30:32 +01:00
pci-dma_32.c
pci-dma_64.c x86: pci-dma_64.c: cleanups 2008-01-30 13:30:31 +01:00
pci-gart_64.c x86: code cleanups in arch/x86/kernel/pci-gart_64.c 2008-01-30 13:30:12 +01:00
pci-nommu_64.c x86 gart: rename iommu.h to gart.h 2007-10-30 00:22:22 +01:00
pci-swiotlb_64.c x86: nuke a ton of unused exports 2008-01-30 13:30:28 +01:00
pcspeaker.c
pmtimer_64.c x86: move pmtmr related declarations 2008-01-30 13:30:18 +01:00
process_32.c i386: hard_{en,dis}able_TSC can be static 2008-01-30 13:31:21 +01:00
process_64.c x86, ptrace: remove bad comment 2008-01-30 13:31:20 +01:00
ptrace.c x86, ptrace: new ptrace BTS API 2008-01-30 13:31:20 +01:00
quirks.c x86: Add HPET force support for MCP55 (nForce 5) chipsets 2007-10-23 22:37:25 +02:00
reboot_32.c x86: unify struct desc_ptr 2008-01-30 13:31:12 +01:00
reboot_64.c x86: EFI runtime service support: EFI runtime services 2008-01-30 13:31:19 +01:00
reboot_fixups_32.c x86: reboot fixup for wrap2c board 2007-11-17 16:27:02 +01:00
relocate_kernel_32.S
relocate_kernel_64.S
rtc.c x86: share rtc code 2008-01-30 13:30:27 +01:00
scx200_32.c
setup64.c x86: change gdt acessor macro name 2008-01-30 13:31:12 +01:00
setup_32.c x86 boot: use E820 memory map on EFI 32 platform 2008-01-30 13:31:19 +01:00
setup_64.c x86: EFI runtime service support 2008-01-30 13:31:19 +01:00
sigframe_32.h
signal_32.c x86: remove all definitions with fastcall 2008-01-30 13:31:17 +01:00
signal_64.c x86: use generic register names in struct sigcontext 2008-01-30 13:30:56 +01:00
smp_32.c x86: remove all definitions with fastcall 2008-01-30 13:31:17 +01:00
smp_64.c x86: rename the struct pt_regs members for 32/64-bit consistency 2008-01-30 13:30:56 +01:00
smpboot_32.c x86: adjust enable_NMI_through_LVT0() 2008-01-30 13:31:24 +01:00
smpboot_64.c x86: adjust enable_NMI_through_LVT0() 2008-01-30 13:31:24 +01:00
smpcommon_32.c x86: change write_gdt_entry signature. 2008-01-30 13:31:13 +01:00
srat_32.c
stacktrace.c x86: nuke a ton of unused exports 2008-01-30 13:30:28 +01:00
step.c x86, ptrace: support for branch trace store(BTS) 2008-01-30 13:31:09 +01:00
summit_32.c
suspend_64.c x86: make __{save,restore}_processor_state static 2008-01-30 13:31:23 +01:00
suspend_asm_64.S x86: rename the struct pt_regs members for 32/64-bit consistency 2008-01-30 13:30:56 +01:00
sys_i386_32.c
sys_x86_64.c x86: PIE executable randomization, checkpatch fixes 2008-01-30 13:31:07 +01:00
syscall_64.c
syscall_table_32.S
tce_64.c
time_32.c x86: rename the struct pt_regs members for 32/64-bit consistency 2008-01-30 13:30:56 +01:00
time_64.c x86: prepare time related functions for paravirt 2008-01-30 13:31:10 +01:00
tls.c x86: modify get_desc_base 2008-01-30 13:31:14 +01:00
topology.c x86: arch_register_cpu() section fix 2007-12-04 17:19:07 +01:00
trampoline_32.S
trampoline_64.S
traps_32.c x86: remove all definitions with fastcall 2008-01-30 13:31:17 +01:00
traps_64.c x86-64: honor notify_die() returning NOTIFY_STOP 2008-01-30 13:31:23 +01:00
tsc_32.c x86: scale cyc_2_nsec according to CPU frequency 2008-01-30 13:30:06 +01:00
tsc_64.c x86: split get_cycles_sync 2008-01-30 13:31:03 +01:00
tsc_sync.c x86: fix: s2ram + P4 + tsc = annoyance 2008-01-30 13:30:04 +01:00
verify_cpu_64.S
vm86_32.c x86: remove all definitions with fastcall 2008-01-30 13:31:17 +01:00
vmi_32.c x86: change write_ldt_entry signature 2008-01-30 13:31:13 +01:00
vmiclock_32.c x86: move 8259 defines to i8259.h 2008-01-30 13:30:29 +01:00
vmlinux_32.lds.S x86: vmlinux_32.lds.S: remove repeated comment from the x86-32 linker script 2008-01-30 13:30:46 +01:00
vmlinux_64.lds.S all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
vmlinux.lds.S
vsmp_64.c x86: clean up arch/x86/kernel/vsmp_64.c 2008-01-30 13:30:24 +01:00
vsyscall_64.c x86: change gdt acessor macro name 2008-01-30 13:31:12 +01:00
x8664_ksyms_64.c x86: export cpu_gdt_descr 2008-01-30 13:31:10 +01:00