X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=arch%2Fx86%2FKconfig;h=3e0eaaa1a339994cea71aac075fbc79680e7f448;hb=8b8e8c1bf7275eca859fe551dfa484134eaf013b;hp=97f0d2b6dc0cb2b35504cf0cb6e03d1571bae2c6;hpb=86ed5a93b8b56e4e0877b914af0e10883a196384;p=deliverable%2Flinux.git
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 97f0d2b6dc0c..3e0eaaa1a339 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -18,6 +18,7 @@ config X86_64
### Arch settings
config X86
def_bool y
+ select HAVE_AOUT if X86_32
select HAVE_UNSTABLE_SCHED_CLOCK
select HAVE_IDE
select HAVE_OPROFILE
@@ -32,6 +33,8 @@ config X86
select HAVE_ARCH_TRACEHOOK
select HAVE_GENERIC_DMA_COHERENT if X86_32
select HAVE_EFFICIENT_UNALIGNED_ACCESS
+ select HAVE_DYN_ARRAY
+ select HAVE_SPARSE_IRQ if X86_64
config ARCH_DEFCONFIG
string
@@ -152,9 +155,6 @@ config AUDIT_ARCH
bool
default X86_64
-config ARCH_SUPPORTS_AOUT
- def_bool y
-
config ARCH_SUPPORTS_OPTIMIZED_INLINING
def_bool y
@@ -554,6 +554,7 @@ config CALGARY_IOMMU_ENABLED_BY_DEFAULT
config AMD_IOMMU
bool "AMD IOMMU support"
select SWIOTLB
+ select PCI_MSI
depends on X86_64 && PCI && ACPI
help
With this option you can enable support for AMD IOMMU hardware in
@@ -777,23 +778,45 @@ config X86_REBOOTFIXUPS
Say N otherwise.
config MICROCODE
- tristate "/dev/cpu/microcode - Intel IA32 CPU microcode support"
+ tristate "/dev/cpu/microcode - microcode support"
select FW_LOADER
---help---
If you say Y here, you will be able to update the microcode on
- Intel processors in the IA32 family, e.g. Pentium Pro, Pentium II,
- Pentium III, Pentium 4, Xeon etc. You will obviously need the
- actual microcode binary data itself which is not shipped with the
- Linux kernel.
+ certain Intel and AMD processors. The Intel support is for the
+ IA32 family, e.g. Pentium Pro, Pentium II, Pentium III,
+ Pentium 4, Xeon etc. The AMD support is for family 0x10 and
+ 0x11 processors, e.g. Opteron, Phenom and Turion 64 Ultra.
+ You will obviously need the actual microcode binary data itself
+ which is not shipped with the Linux kernel.
- For latest news and information on obtaining all the required
- ingredients for this driver, check:
- .
+ This option selects the general module only, you need to select
+ at least one vendor specific module as well.
To compile this driver as a module, choose M here: the
module will be called microcode.
-config MICROCODE_OLD_INTERFACE
+config MICROCODE_INTEL
+ bool "Intel microcode patch loading support"
+ depends on MICROCODE
+ default MICROCODE
+ select FW_LOADER
+ --help---
+ This options enables microcode patch loading support for Intel
+ processors.
+
+ For latest news and information on obtaining all the required
+ Intel ingredients for this driver, check:
+ .
+
+config MICROCODE_AMD
+ bool "AMD microcode patch loading support"
+ depends on MICROCODE
+ select FW_LOADER
+ --help---
+ If you select this option, microcode patch loading support for AMD
+ processors will be enabled.
+
+ config MICROCODE_OLD_INTERFACE
def_bool y
depends on MICROCODE
@@ -1060,6 +1083,56 @@ config HIGHPTE
low memory. Setting this option will put user-space page table
entries in high memory.
+config X86_CHECK_BIOS_CORRUPTION
+ bool "Check for low memory corruption"
+ help
+ Periodically check for memory corruption in low memory, which
+ is suspected to be caused by BIOS. Even when enabled in the
+ configuration, it is disabled at runtime. Enable it by
+ setting "memory_corruption_check=1" on the kernel command
+ line. By default it scans the low 64k of memory every 60
+ seconds; see the memory_corruption_check_size and
+ memory_corruption_check_period parameters in
+ Documentation/kernel-parameters.txt to adjust this.
+
+ When enabled with the default parameters, this option has
+ almost no overhead, as it reserves a relatively small amount
+ of memory and scans it infrequently. It both detects corruption
+ and prevents it from affecting the running system.
+
+ It is, however, intended as a diagnostic tool; if repeatable
+ BIOS-originated corruption always affects the same memory,
+ you can use memmap= to prevent the kernel from using that
+ memory.
+
+config X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK
+ bool "Set the default setting of memory_corruption_check"
+ depends on X86_CHECK_BIOS_CORRUPTION
+ default y
+ help
+ 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
+ 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.
+
+ Set this to N if you are absolutely sure that you trust the BIOS
+ to get all its memory reservations and usages right.
+
+ 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.
+
+ Say Y if unsure.
+
config MATH_EMULATION
bool
prompt "Math emulation" if X86_32
@@ -1181,14 +1254,6 @@ config EFI
resultant kernel should continue to boot on existing non-EFI
platforms.
-config IRQBALANCE
- def_bool y
- prompt "Enable kernel irq balancing"
- depends on X86_32 && SMP && X86_IO_APIC
- help
- The default yes will allow the kernel to do irq load balancing.
- Saying no will keep the kernel from doing irq load balancing.
-
config SECCOMP
def_bool y
prompt "Enable seccomp to safely compute untrusted bytecode"
@@ -1688,6 +1753,14 @@ config DMAR_FLOPPY_WA
workaround will setup a 1:1 mapping for the first
16M to make floppy (an ISA device) work.
+config INTR_REMAP
+ bool "Support for Interrupt Remapping (EXPERIMENTAL)"
+ depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI && EXPERIMENTAL
+ help
+ Supports Interrupt remapping for IO-APIC and MSI devices.
+ To use x2apic mode in the CPU's which support x2APIC enhancements or
+ to support platforms with CPU's having > 8 bit APIC ID, say Y.
+
source "drivers/pci/pcie/Kconfig"
source "drivers/pci/Kconfig"
@@ -1804,7 +1877,7 @@ config IA32_EMULATION
config IA32_AOUT
tristate "IA32 a.out support"
- depends on IA32_EMULATION && ARCH_SUPPORTS_AOUT
+ depends on IA32_EMULATION
help
Support old a.out binaries in the 32bit emulation.