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Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r--arch/x86/Kconfig145
1 files changed, 63 insertions, 82 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index cea0cd9a316..dfabfefc21c 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -25,14 +25,17 @@ config X86
select HAVE_IDE
select HAVE_OPROFILE
select HAVE_PERF_EVENTS if (!M386 && !M486)
+ select HAVE_IRQ_WORK
select HAVE_IOREMAP_PROT
select HAVE_KPROBES
+ select HAVE_MEMBLOCK
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARCH_WANT_FRAME_POINTERS
select HAVE_DMA_ATTRS
select HAVE_KRETPROBES
select HAVE_OPTPROBES
select HAVE_FTRACE_MCOUNT_RECORD
+ select HAVE_C_RECORDMCOUNT
select HAVE_DYNAMIC_FTRACE
select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_GRAPH_TRACER
@@ -59,6 +62,12 @@ config X86
select ANON_INODES
select HAVE_ARCH_KMEMCHECK
select HAVE_USER_RETURN_NOTIFIER
+ select HAVE_ARCH_JUMP_LABEL
+ select HAVE_TEXT_POKE_SMP
+ select HAVE_GENERIC_HARDIRQS
+ select HAVE_SPARSE_IRQ
+ select GENERIC_IRQ_PROBE
+ select GENERIC_PENDING_IRQ if SMP
config INSTRUCTION_DECODER
def_bool (KPROBES || PERF_EVENTS)
@@ -193,27 +202,10 @@ config ARCH_SUPPORTS_OPTIMIZED_INLINING
config ARCH_SUPPORTS_DEBUG_PAGEALLOC
def_bool y
-config HAVE_EARLY_RES
- def_bool y
-
config HAVE_INTEL_TXT
def_bool y
depends on EXPERIMENTAL && DMAR && ACPI
-# Use the generic interrupt handling code in kernel/irq/:
-config GENERIC_HARDIRQS
- def_bool y
-
-config GENERIC_HARDIRQS_NO__DO_IRQ
- def_bool y
-
-config GENERIC_IRQ_PROBE
- def_bool y
-
-config GENERIC_PENDING_IRQ
- def_bool y
- depends on GENERIC_HARDIRQS && SMP
-
config USE_GENERIC_SMP_HELPERS
def_bool y
depends on SMP
@@ -296,23 +288,6 @@ config X86_X2APIC
If you don't know what to do here, say N.
-config SPARSE_IRQ
- bool "Support sparse irq numbering"
- depends on PCI_MSI || HT_IRQ
- ---help---
- This enables support for sparse irqs. This is useful for distro
- kernels that want to define a high CONFIG_NR_CPUS value but still
- want to have low kernel memory footprint on smaller machines.
-
- ( Sparse IRQs can also be beneficial on NUMA boxes, as they spread
- out the irq_desc[] array in a more NUMA-friendly way. )
-
- If you don't know what to do here, say N.
-
-config NUMA_IRQ_DESC
- def_bool y
- depends on SPARSE_IRQ && NUMA
-
config X86_MPPARSE
bool "Enable MPS table" if ACPI
default y
@@ -517,25 +492,6 @@ if PARAVIRT_GUEST
source "arch/x86/xen/Kconfig"
-config VMI
- bool "VMI Guest support (DEPRECATED)"
- select PARAVIRT
- depends on X86_32
- ---help---
- VMI provides a paravirtualized interface to the VMware ESX server
- (it could be used by other hypervisors in theory too, but is not
- at the moment), by linking the kernel to a GPL-ed ROM module
- provided by the hypervisor.
-
- As of September 2009, VMware has started a phased retirement
- of this feature from VMware's products. Please see
- feature-removal-schedule.txt for details. If you are
- planning to enable this option, please note that you cannot
- live migrate a VMI enabled VM to a future VMware product,
- which doesn't support VMI. So if you expect your kernel to
- seamlessly migrate to newer VMware products, keep this
- disabled.
-
config KVM_CLOCK
bool "KVM paravirtualized clock"
select PARAVIRT
@@ -590,16 +546,7 @@ config PARAVIRT_DEBUG
a paravirt_op is missing when it is called.
config NO_BOOTMEM
- default y
- bool "Disable Bootmem code"
- ---help---
- Use early_res directly instead of bootmem before slab is ready.
- - allocator (buddy) [generic]
- - early allocator (bootmem) [generic]
- - very early allocator (reserve_early*()) [x86]
- - very very early allocator (early brk model) [x86]
- So reduce one layer between early allocator to final allocator
-
+ def_bool y
config MEMTEST
bool "Memtest"
@@ -670,7 +617,7 @@ config GART_IOMMU
bool "GART IOMMU support" if EMBEDDED
default y
select SWIOTLB
- depends on X86_64 && PCI && K8_NB
+ depends on X86_64 && PCI && AMD_NB
---help---
Support for full DMA access of devices with 32bit memory access only
on systems with more than 3GB. This is usually needed for USB,
@@ -795,6 +742,17 @@ config SCHED_MC
making when dealing with multi-core CPU chips at a cost of slightly
increased overhead in some places. If unsure say N here.
+config IRQ_TIME_ACCOUNTING
+ bool "Fine granularity task level IRQ time accounting"
+ default n
+ ---help---
+ Select this option to enable fine granularity task irq time
+ accounting. This is done by reading a timestamp on each
+ transitions between softirq and hardirq state, so there can be a
+ small performance impact.
+
+ If in doubt, say N here.
+
source "kernel/Kconfig.preempt"
config X86_UP_APIC
@@ -1148,6 +1106,9 @@ config X86_PAE
config ARCH_PHYS_ADDR_T_64BIT
def_bool X86_64 || X86_PAE
+config ARCH_DMA_ADDR_T_64BIT
+ def_bool X86_64 || HIGHMEM64G
+
config DIRECT_GBPAGES
bool "Enable 1GB pages for kernel pagetables" if EMBEDDED
default y
@@ -1326,25 +1287,34 @@ config X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK
Set whether the default state of memory_corruption_check is
on or off.
-config X86_RESERVE_LOW_64K
- bool "Reserve low 64K of RAM on AMI/Phoenix BIOSen"
- default y
+config X86_RESERVE_LOW
+ int "Amount of low memory, in kilobytes, to reserve for the BIOS"
+ default 64
+ range 4 640
---help---
- Reserve the first 64K of physical RAM on BIOSes that are known
- to potentially corrupt that memory range. A numbers of BIOSes are
- known to utilize this area during suspend/resume, so it must not
- be used by the kernel.
+ Specify the amount of low memory to reserve for the BIOS.
+
+ The first page contains BIOS data structures that the kernel
+ must not use, so that page must always be reserved.
+
+ By default we reserve the first 64K of physical RAM, as a
+ number of BIOSes are known to corrupt that memory range
+ during events such as suspend/resume or monitor cable
+ insertion, so it must not be used by the kernel.
- Set this to N if you are absolutely sure that you trust the BIOS
- to get all its memory reservations and usages right.
+ You can set this to 4 if you are absolutely sure that you
+ trust the BIOS to get all its memory reservations and usages
+ right. If you know your BIOS have problems beyond the
+ default 64K area, you can set this to 640 to avoid using the
+ entire low memory range.
- If you have doubts about the BIOS (e.g. suspend/resume does not
- work or there's kernel crashes after certain hardware hotplug
- events) and it's not AMI or Phoenix, then you might want to enable
- X86_CHECK_BIOS_CORRUPTION=y to allow the kernel to check typical
- corruption patterns.
+ If you have doubts about the BIOS (e.g. suspend/resume does
+ not work or there's kernel crashes after certain hardware
+ hotplug events) then you might want to enable
+ X86_CHECK_BIOS_CORRUPTION=y to allow the kernel to check
+ typical corruption patterns.
- Say Y if unsure.
+ Leave this to the default value of 64 if you are unsure.
config MATH_EMULATION
bool
@@ -1900,7 +1870,7 @@ config PCI_GODIRECT
bool "Direct"
config PCI_GOOLPC
- bool "OLPC"
+ bool "OLPC XO-1"
depends on OLPC
config PCI_GOANY
@@ -2061,14 +2031,21 @@ config SCx200HR_TIMER
config OLPC
bool "One Laptop Per Child support"
select GPIOLIB
+ select OLPC_OPENFIRMWARE
---help---
Add support for detecting the unique features of the OLPC
XO hardware.
+config OLPC_XO1
+ tristate "OLPC XO-1 support"
+ depends on OLPC && PCI
+ ---help---
+ Add support for non-essential features of the OLPC XO-1 laptop.
+
config OLPC_OPENFIRMWARE
bool "Support for OLPC's Open Firmware"
depends on !X86_64 && !X86_PAE
- default y if OLPC
+ default n
help
This option adds support for the implementation of Open Firmware
that is used on the OLPC XO-1 Children's Machine.
@@ -2076,7 +2053,7 @@ config OLPC_OPENFIRMWARE
endif # X86_32
-config K8_NB
+config AMD_NB
def_bool y
depends on CPU_SUP_AMD && PCI
@@ -2125,6 +2102,10 @@ config HAVE_ATOMIC_IOMAP
def_bool y
depends on X86_32
+config HAVE_TEXT_POKE_SMP
+ bool
+ select STOP_MACHINE if SMP
+
source "net/Kconfig"
source "drivers/Kconfig"