diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-02-17 17:20:11 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-17 17:20:11 +0100 |
| commit | 0b6de0092244c98b5ba1abda34c92470a20e0d0c (patch) | |
| tree | 478e4e18c33fd9fa517559e1ce951fe378d5965f /arch/x86/Kconfig | |
| parent | 37a25424252b6cff4dd4b1937ab6a1dbfcadabcc (diff) | |
| parent | f62bae5009c1ba596cd475cafbc83e0570a36e26 (diff) | |
Merge branch 'x86/apic' into perfcounters/core
Conflicts:
arch/x86/kernel/cpu/perfctr-watchdog.c
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index f2d0d24c0b6..8780ffde6ef 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -235,6 +235,20 @@ config SMP If you don't know what to do here, say N. +config X86_X2APIC + bool "Support x2apic" + depends on X86_LOCAL_APIC && X86_64 + ---help--- + This enables x2apic support on CPUs that have this feature. + + This allows 32-bit apic IDs (so it can support very large systems), + and accesses the local apic via MSRs not via mmio. + + ( On certain CPU models you may need to enable INTR_REMAP too, + to get functional x2apic mode. ) + + 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 @@ -302,6 +316,7 @@ config X86_UV bool "SGI Ultraviolet" depends on X86_64 depends on X86_EXTENDED_PLATFORM + select X86_X2APIC ---help--- This option is needed in order to support SGI Ultraviolet systems. If you don't have one of these, you should say N here. @@ -1829,6 +1844,7 @@ config DMAR_FLOPPY_WA config INTR_REMAP bool "Support for Interrupt Remapping (EXPERIMENTAL)" depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI && EXPERIMENTAL + select X86_X2APIC ---help--- Supports Interrupt remapping for IO-APIC and MSI devices. To use x2apic mode in the CPU's which support x2APIC enhancements or |