diff options
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 69 |
1 files changed, 54 insertions, 15 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index b32ebf92b0ce..ee2fb9d37745 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -16,6 +16,7 @@ config X86_64 def_bool y depends on 64BIT select X86_DEV_DMA_OPS + select ARCH_USE_CMPXCHG_LOCKREF ### Arch settings config X86 @@ -81,8 +82,6 @@ config X86 select HAVE_USER_RETURN_NOTIFIER select ARCH_BINFMT_ELF_RANDOMIZE_PIE select HAVE_ARCH_JUMP_LABEL - select HAVE_TEXT_POKE_SMP - select HAVE_GENERIC_HARDIRQS select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select SPARSE_IRQ select GENERIC_FIND_FIRST_BIT @@ -482,11 +481,12 @@ config X86_INTEL_LPSS bool "Intel Low Power Subsystem Support" depends on ACPI select COMMON_CLK + select PINCTRL ---help--- Select to build support for Intel Low Power Subsystem such as found on Intel Lynxpoint PCH. Selecting this option enables - things like clock tree (common clock framework) which are needed - by the LPSS peripheral drivers. + things like clock tree (common clock framework) and pincontrol + which are needed by the LPSS peripheral drivers. config X86_RDC321X bool "RDC R-321x SoC" @@ -632,6 +632,7 @@ config PARAVIRT_DEBUG config PARAVIRT_SPINLOCKS bool "Paravirtualization layer for spinlocks" depends on PARAVIRT && SMP + select UNINLINE_SPIN_UNLOCK ---help--- Paravirtualized spinlocks allow a pvops backend to replace the spinlock implementation with something virtualization-friendly @@ -656,6 +657,15 @@ config KVM_GUEST underlying device model, the host provides the guest with timing infrastructure such as time of day, and system time +config KVM_DEBUG_FS + bool "Enable debug information for KVM Guests in debugfs" + depends on KVM_GUEST && DEBUG_FS + default n + ---help--- + This option enables collection of various statistics for KVM guest. + Statistics are displayed in debugfs filesystem. Enabling this option + may incur significant overhead. + source "arch/x86/lguest/Kconfig" config PARAVIRT_TIME_ACCOUNTING @@ -1344,8 +1354,12 @@ config ARCH_SELECT_MEMORY_MODEL depends on ARCH_SPARSEMEM_ENABLE config ARCH_MEMORY_PROBE - def_bool y + bool "Enable sysfs memory/probe interface" depends on X86_64 && MEMORY_HOTPLUG + help + This option enables a sysfs memory/probe interface for testing. + See Documentation/memory-hotplug.txt for more information. + If you are unsure how to answer this question, answer N. config ARCH_PROC_KCORE_TEXT def_bool y @@ -1627,9 +1641,9 @@ config KEXEC It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not - initially work for you. It may help to enable device hotplugging - support. As of this writing the exact hardware interface is - strongly in flux, so no good recommendation can be made. + initially work for you. As of this writing the exact hardware + interface is strongly in flux, so no good recommendation can be + made. config CRASH_DUMP bool "kernel crash dumps" @@ -1716,9 +1730,10 @@ config X86_NEED_RELOCS depends on X86_32 && RELOCATABLE config PHYSICAL_ALIGN - hex "Alignment value to which kernel should be aligned" if X86_32 + hex "Alignment value to which kernel should be aligned" default "0x1000000" - range 0x2000 0x1000000 + range 0x2000 0x1000000 if X86_32 + range 0x200000 0x1000000 if X86_64 ---help--- This value puts the alignment restrictions on physical address where kernel is loaded and run from. Kernel is compiled for an @@ -1736,6 +1751,9 @@ config PHYSICAL_ALIGN end result is that kernel runs from a physical address meeting above alignment restrictions. + On 32-bit this value must be a multiple of 0x2000. On 64-bit + this value must be a multiple of 0x200000. + Don't change this unless you know what you are doing. config HOTPLUG_CPU @@ -2014,7 +2032,6 @@ menu "Bus options (PCI etc.)" config PCI bool "PCI support" default y - select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC) ---help--- Find out whether you have a PCI motherboard. PCI is the name of a bus system, i.e. the way the CPU talks to the other stuff inside @@ -2270,6 +2287,32 @@ config RAPIDIO source "drivers/rapidio/Kconfig" +config X86_SYSFB + bool "Mark VGA/VBE/EFI FB as generic system framebuffer" + help + Firmwares often provide initial graphics framebuffers so the BIOS, + bootloader or kernel can show basic video-output during boot for + user-guidance and debugging. Historically, x86 used the VESA BIOS + Extensions and EFI-framebuffers for this, which are mostly limited + to x86. + This option, if enabled, marks VGA/VBE/EFI framebuffers as generic + framebuffers so the new generic system-framebuffer drivers can be + used on x86. If the framebuffer is not compatible with the generic + modes, it is adverticed as fallback platform framebuffer so legacy + drivers like efifb, vesafb and uvesafb can pick it up. + If this option is not selected, all system framebuffers are always + marked as fallback platform framebuffers as usual. + + Note: Legacy fbdev drivers, including vesafb, efifb, uvesafb, will + not be able to pick up generic system framebuffers if this option + is selected. You are highly encouraged to enable simplefb as + replacement if you select this option. simplefb can correctly deal + with generic system framebuffers. But you should still keep vesafb + and others enabled as fallback if a system framebuffer is + incompatible with simplefb. + + If unsure, say Y. + endmenu @@ -2332,10 +2375,6 @@ config HAVE_ATOMIC_IOMAP def_bool y depends on X86_32 -config HAVE_TEXT_POKE_SMP - bool - select STOP_MACHINE if SMP - config X86_DEV_DMA_OPS bool depends on X86_64 || STA2X11 |