select HAVE_DMA_ATTRS
select HAVE_DMA_CONTIGUOUS if !SWIOTLB
select HAVE_KRETPROBES
+ select GENERIC_EARLY_IOREMAP
select HAVE_OPTPROBES
select HAVE_KPROBES_ON_FTRACE
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_ARCH_SOFT_DIRTY
select CLOCKSOURCE_WATCHDOG
select GENERIC_CLOCKEVENTS
- select ARCH_CLOCKSOURCE_DATA if X86_64
+ select ARCH_CLOCKSOURCE_DATA
select GENERIC_CLOCKEVENTS_BROADCAST if X86_64 || (X86_32 && X86_LOCAL_APIC)
- select GENERIC_TIME_VSYSCALL if X86_64
+ select GENERIC_TIME_VSYSCALL
select KTIME_SCALAR if X86_32
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select HAVE_DEBUG_STACKOVERFLOW
select HAVE_IRQ_EXIT_ON_IRQ_STACK if X86_64
select HAVE_CC_STACKPROTECTOR
+ select GENERIC_CPU_AUTOPROBE
+ select HAVE_ARCH_AUDITSYSCALL
config INSTRUCTION_DECODER
def_bool y
config ARCH_HAS_CACHE_LINE_SIZE
def_bool y
-config ARCH_HAS_CPU_AUTOPROBE
- def_bool y
-
config HAVE_SETUP_PER_CPU_AREA
def_bool y
config ARCH_SUPPORTS_UPROBES
def_bool y
+config FIX_EARLYCON_MEM
+ def_bool y
+
source "init/Kconfig"
source "kernel/Kconfig.freezer"
for the following (non-PC) 32 bit x86 platforms:
Goldfish (Android emulator)
AMD Elan
- NUMAQ (IBM/Sequent)
RDC R-321x SoC
SGI 320/540 (Visual Workstation)
STA2X11-based (e.g. Northville)
- Summit/EXA (IBM x440)
- Unisys ES7000 IA32 series
Moorestown MID devices
If you have one of these systems, or if you want to build a
config X86_GOLDFISH
bool "Goldfish (Virtual Platform)"
- depends on X86_32
depends on X86_EXTENDED_PLATFORM
---help---
Enable support for the Goldfish virtual platform used primarily
depends on X86_32 && SMP
depends on X86_EXTENDED_PLATFORM
---help---
- This option compiles in the NUMAQ, Summit, bigsmp, ES7000,
- STA2X11, default subarchitectures. It is intended for a generic
- binary kernel. If you select them all, kernel will probe it
- one by one and will fallback to default.
+ This option compiles in the bigsmp and STA2X11 default
+ subarchitectures. It is intended for a generic binary
+ kernel. If you select them all, kernel will probe it one by
+ one and will fallback to default.
# Alphabetically sorted list of Non standard 32 bit platforms
-config X86_NUMAQ
- bool "NUMAQ (IBM/Sequent)"
- depends on X86_32_NON_STANDARD
- depends on PCI
- select NUMA
- select X86_MPPARSE
- ---help---
- This option is used for getting Linux to run on a NUMAQ (IBM/Sequent)
- NUMA multiquad box. This changes the way that processors are
- bootstrapped, and uses Clustered Logical APIC addressing mode instead
- of Flat Logical. You will need a new lynxer.elf file to flash your
- firmware with - send email to <Martin.Bligh@us.ibm.com>.
-
config X86_SUPPORTS_MEMORY_FAILURE
def_bool y
# MCE code calls memory_failure():
depends on X86_MCE
# On 32-bit this adds too big of NODES_SHIFT and we run out of page flags:
- depends on !X86_NUMAQ
# On 32-bit SPARSEMEM adds too big of SECTIONS_WIDTH:
depends on X86_64 || !SPARSEMEM
select ARCH_SUPPORTS_MEMORY_FAILURE
-config X86_VISWS
- bool "SGI 320/540 (Visual Workstation)"
- depends on X86_32 && PCI && X86_MPPARSE && PCI_GODIRECT
- depends on X86_32_NON_STANDARD
- ---help---
- The SGI Visual Workstation series is an IA32-based workstation
- based on SGI systems chips with some legacy PC hardware attached.
-
- Say Y here to create a kernel to run on the SGI 320 or 540.
-
- A kernel compiled for the Visual Workstation will run on general
- PCs as well. See <file:Documentation/sgi-visws.txt> for details.
-
config STA2X11
bool "STA2X11 Companion Chip Support"
depends on X86_32_NON_STANDARD && PCI
option is selected the kernel will still be able to boot on
standard PC machines.
-config X86_SUMMIT
- bool "Summit/EXA (IBM x440)"
- depends on X86_32_NON_STANDARD
- ---help---
- This option is needed for IBM systems that use the Summit/EXA chipset.
- In particular, it is needed for the x440.
-
-config X86_ES7000
- bool "Unisys ES7000 IA32 series"
- depends on X86_32_NON_STANDARD && X86_BIGSMP
- ---help---
- Support for Unisys ES7000 systems. Say 'Y' here if this kernel is
- supposed to run on an IA32-based Unisys ES7000 system.
-
config X86_32_IRIS
tristate "Eurobraille/Iris poweroff module"
depends on X86_32
memtest=4, mean do 4 test patterns.
If you are unsure how to answer this question, answer N.
-config X86_SUMMIT_NUMA
- def_bool y
- depends on X86_32 && NUMA && X86_32_NON_STANDARD
-
-config X86_CYCLONE_TIMER
- def_bool y
- depends on X86_SUMMIT
-
source "arch/x86/Kconfig.cpu"
config HPET_TIMER
range 2 8192 if SMP && !MAXSMP && CPUMASK_OFFSTACK && X86_64
default "1" if !SMP
default "8192" if MAXSMP
- default "32" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000)
+ default "32" if SMP && X86_BIGSMP
default "8" if SMP
---help---
This allows you to specify the maximum number of CPUs which this
def_bool y
depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_IOAPIC || PCI_MSI
-config X86_VISWS_APIC
- def_bool y
- depends on X86_32 && X86_VISWS
-
config X86_REROUTE_FOR_BROKEN_BOOT_IRQS
bool "Reroute for broken boot IRQs"
depends on X86_IO_APIC
choice
prompt "High Memory Support"
- default HIGHMEM64G if X86_NUMAQ
default HIGHMEM4G
depends on X86_32
config NOHIGHMEM
bool "off"
- depends on !X86_NUMAQ
---help---
Linux can use up to 64 Gigabytes of physical memory on x86 systems.
However, the address space of 32-bit x86 processors is only 4
config HIGHMEM4G
bool "4GB"
- depends on !X86_NUMAQ
---help---
Select this if you have a 32-bit processor and between 1 and 4
gigabytes of physical RAM.
config NUMA
bool "Numa Memory Allocation and Scheduler Support"
depends on SMP
- depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI))
- default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP)
+ depends on X86_64 || (X86_32 && HIGHMEM64G && X86_BIGSMP)
+ default y if X86_BIGSMP
---help---
Enable NUMA (Non Uniform Memory Access) support.
For 64-bit this is recommended if the system is Intel Core i7
(or later), AMD Opteron, or EM64T NUMA.
- For 32-bit this is only needed on (rare) 32-bit-only platforms
- that support NUMA topologies, such as NUMAQ / Summit, or if you
- boot a 32-bit kernel on a 64-bit NUMA platform.
+ For 32-bit this is only needed if you boot a 32-bit
+ kernel on a 64-bit NUMA platform.
Otherwise, you should say N.
-comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
- depends on X86_32 && X86_SUMMIT && (!HIGHMEM64G || !ACPI)
-
config AMD_NUMA
def_bool y
prompt "Old style AMD Opteron NUMA detection"
range 1 10
default "10" if MAXSMP
default "6" if X86_64
- default "4" if X86_NUMAQ
default "3"
depends on NEED_MULTIPLE_NODES
---help---
See Documentation/efi-stub.txt for more information.
+config EFI_MIXED
+ bool "EFI mixed-mode support"
+ depends on EFI_STUB && X86_64
+ ---help---
+ Enabling this feature allows a 64-bit kernel to be booted
+ on a 32-bit firmware, provided that your CPU supports 64-bit
+ mode.
+
+ Note that it is not possible to boot a mixed-mode enabled
+ kernel via the EFI boot stub - a bootloader that supports
+ the EFI handover protocol must be used.
+
+ If unsure, say N.
+
config SECCOMP
def_bool y
prompt "Enable seccomp to safely compute untrusted bytecode"
If unsure, say N.
config COMPAT_VDSO
- def_bool y
- prompt "Compat VDSO support"
+ def_bool n
+ prompt "Disable the 32-bit vDSO (needed for glibc 2.3.3)"
depends on X86_32 || IA32_EMULATION
---help---
- Map the 32-bit VDSO to the predictable old-style address too.
+ Certain buggy versions of glibc will crash if they are
+ presented with a 32-bit vDSO that is not mapped at the address
+ indicated in its segment table.
- Say N here if you are running a sufficiently recent glibc
- version (2.3.3 or later), to remove the high-mapped
- VDSO mapping and to exclusively use the randomized VDSO.
+ The bug was introduced by f866314b89d56845f55e6f365e18b31ec978ec3a
+ and fixed by 3b3ddb4f7db98ec9e912ccdf54d35df4aa30e04a and
+ 49ad572a70b8aeb91e57483a11dd1b77e31c4468. Glibc 2.3.3 is
+ the only released version with the bug, but OpenSUSE 9
+ contains a buggy "glibc 2.3.2".
- If unsure, say Y.
+ The symptom of the bug is that everything crashes on startup, saying:
+ dl_main: Assertion `(void *) ph->p_vaddr == _rtld_local._dl_sysinfo_dso' failed!
+
+ Saying Y here changes the default value of the vdso32 boot
+ option from 1 to 0, which turns off the 32-bit vDSO entirely.
+ This works around the glibc bug but hurts performance.
+
+ If unsure, say N: if you are compiling your own kernel, you
+ are unlikely to be using a buggy version of glibc.
config CMDLINE_BOOL
bool "Built-in kernel command line"
def_bool y
depends on X86_64 || X86_PAE
+config ARCH_ENABLE_HUGEPAGE_MIGRATION
+ def_bool y
+ depends on X86_64 && HUGETLB_PAGE && MIGRATION
+
menu "Power management and ACPI options"
config ARCH_HIBERNATION_HEADER
depends on STA2X11
config IOSF_MBI
- bool
+ tristate
+ default m
depends on PCI
- ---help---
- To be selected by modules requiring access to the Intel OnChip System
- Fabric (IOSF) Sideband MailBox Interface (MBI). For MBI platforms
- enumerable by PCI.
source "net/Kconfig"
projects / deliverable / linux.git / blobdiff