x86, AMD IOMMU: do runtime list initialization at compile time

[pandora-kernel.git] / arch / x86 / Kconfig

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index fe361ae..b120cff 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -26,17 +26,10 @@ config X86
        select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64)
        select HAVE_ARCH_KGDB if !X86_VOYAGER
 
-config DEFCONFIG_LIST
+config ARCH_DEFCONFIG
        string
-       depends on X86_32
-       option defconfig_list
-       default "arch/x86/configs/i386_defconfig"
-
-config DEFCONFIG_LIST
-       string
-       depends on X86_64
-       option defconfig_list
-       default "arch/x86/configs/x86_64_defconfig"
+       default "arch/x86/configs/i386_defconfig" if X86_32
+       default "arch/x86/configs/x86_64_defconfig" if X86_64
 
 
 config GENERIC_LOCKBREAK
@@ -390,6 +383,7 @@ config VMI
 config KVM_CLOCK
        bool "KVM paravirtualized clock"
        select PARAVIRT
+       select PARAVIRT_CLOCK
        depends on !(X86_VISWS || X86_VOYAGER)
        help
          Turning on this option will allow you to run a paravirtualized clock
@@ -417,6 +411,10 @@ config PARAVIRT
          over full virtualization.  However, when run without a hypervisor
          the kernel is theoretically slower and slightly larger.
 
+config PARAVIRT_CLOCK
+       bool
+       default n
+
 endif
 
 config MEMTEST_BOOTPARAM
@@ -551,6 +549,21 @@ config CALGARY_IOMMU_ENABLED_BY_DEFAULT
          Calgary anyway, pass 'iommu=calgary' on the kernel command line.
          If unsure, say Y.
 
+config AMD_IOMMU
+       bool "AMD IOMMU support"
+       select SWIOTLB
+       depends on X86_64 && PCI && ACPI
+       help
+         With this option you can enable support for AMD IOMMU hardware in
+         your system. An IOMMU is a hardware component which provides
+         remapping of DMA memory accesses from devices. With an AMD IOMMU you
+         can isolate the the DMA memory of different devices and protect the
+         system from misbehaving device drivers or hardware.
+
+         You can find out if your system has an AMD IOMMU if you look into
+         your BIOS for an option to enable it or if you have an IVRS ACPI
+         table.
+
 # need this always selected by IOMMU for the VIA workaround
 config SWIOTLB
        bool
@@ -1515,13 +1528,13 @@ config PCI_GOMMCONFIG
 config PCI_GODIRECT
        bool "Direct"
 
-config PCI_GOANY
-       bool "Any"
-
 config PCI_GOOLPC
        bool "OLPC"
        depends on OLPC
 
+config PCI_GOANY
+       bool "Any"
+
 endchoice
 
 config PCI_BIOS
@@ -1538,9 +1551,8 @@ config PCI_MMCONFIG
        depends on X86_32 && PCI && ACPI && (PCI_GOMMCONFIG || PCI_GOANY)
 
 config PCI_OLPC
-       bool
-       depends on PCI && PCI_GOOLPC
-       default y
+       def_bool y
+       depends on PCI && OLPC && (PCI_GOOLPC || PCI_GOANY)
 
 config PCI_DOMAINS
        def_bool y