diff options
Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r-- | arch/x86/Kconfig | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 4b3408206091..bc25b9f5e4cd 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig | |||
@@ -252,17 +252,13 @@ config SMP | |||
252 | 252 | ||
253 | config X86_X2APIC | 253 | config X86_X2APIC |
254 | bool "Support x2apic" | 254 | bool "Support x2apic" |
255 | depends on X86_LOCAL_APIC && X86_64 | 255 | depends on X86_LOCAL_APIC && X86_64 && INTR_REMAP |
256 | select INTR_REMAP | ||
257 | ---help--- | 256 | ---help--- |
258 | This enables x2apic support on CPUs that have this feature. | 257 | This enables x2apic support on CPUs that have this feature. |
259 | 258 | ||
260 | This allows 32-bit apic IDs (so it can support very large systems), | 259 | This allows 32-bit apic IDs (so it can support very large systems), |
261 | and accesses the local apic via MSRs not via mmio. | 260 | and accesses the local apic via MSRs not via mmio. |
262 | 261 | ||
263 | ( On certain CPU models you may need to enable INTR_REMAP too, | ||
264 | to get functional x2apic mode. ) | ||
265 | |||
266 | If you don't know what to do here, say N. | 262 | If you don't know what to do here, say N. |
267 | 263 | ||
268 | config SPARSE_IRQ | 264 | config SPARSE_IRQ |