package/kernel/linux/modules/virt.mk

   1 #
   2 # Copyright (C) 2016 Yousong Zhou <yszhou4tech@gmail.com>
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7 define KernelPackage/irqbypass
   8   SUBMENU:=Virtualization
   9   TITLE:=IRQ offload/bypass manager
  10   KCONFIG:=CONFIG_IRQ_BYPASS_MANAGER
  11   FILES:= $(LINUX_DIR)/virt/lib/irqbypass.ko
  12   AUTOLOAD:=$(call AutoProbe,irqbypass.ko)
  13 endef
  14
  15 define KernelPackage/irqbypass/description
  16   Various virtualization hardware acceleration techniques allow bypassing or
  17   offloading interrupts received from devices around the host kernel.  Posted
  18   Interrupts on Intel VT-d systems can allow interrupts to be received
  19   directly by a virtual machine.  ARM IRQ Forwarding allows forwarded physical
  20   interrupts to be directly deactivated by the guest.  This manager allows
  21   interrupt producers and consumers to find each other to enable this sort of
  22   bypass.
  23 endef
  24
  25 $(eval $(call KernelPackage,irqbypass))
  26
  27
  28 define KernelPackage/kvm-x86
  29   SUBMENU:=Virtualization
  30   TITLE:=Kernel-based Virtual Machine (KVM) support
  31   DEPENDS:=@TARGET_x86 +kmod-irqbypass
  32   KCONFIG:=\
  33           CONFIG_VIRTUALIZATION=y \
  34           CONFIG_KVM \
  35           CONFIG_VHOST_NET=n \
  36           CONFIG_VHOST_CROSS_ENDIAN_LEGACY=n \
  37           CONFIG_TASK_XACCT=n \
  38
  39   FILES:= $(LINUX_DIR)/arch/$(LINUX_KARCH)/kvm/kvm.ko
  40   AUTOLOAD:=$(call AutoProbe,kvm.ko)
  41 endef
  42
  43 define KernelPackage/kvm-x86/description
  44   Support hosting fully virtualized guest machines using hardware
  45   virtualization extensions.  You will need a fairly recent
  46   processor equipped with virtualization extensions. You will also
  47   need to select one or more of the processor modules.
  48
  49   This module provides access to the hardware capabilities through
  50   a character device node named /dev/kvm.
  51 endef
  52
  53 $(eval $(call KernelPackage,kvm-x86))
  54
  55
  56 define KernelPackage/kvm-intel
  57   SUBMENU:=Virtualization
  58   TITLE:=KVM for Intel processors support
  59   DEPENDS:=@TARGET_x86 +kmod-kvm-x86
  60   KCONFIG:=CONFIG_KVM_INTEL CONFIG_KVM_AMD=n
  61   FILES:= $(LINUX_DIR)/arch/$(LINUX_KARCH)/kvm/kvm-intel.ko
  62   AUTOLOAD:=$(call AutoProbe,kvm-intel.ko)
  63 endef
  64
  65 define KernelPackage/kvm-intel/description
  66   Provides support for KVM on Intel processors equipped with the VT
  67   extensions.
  68 endef
  69
  70 $(eval $(call KernelPackage,kvm-intel))
  71
  72
  73 define KernelPackage/kvm-amd
  74   SUBMENU:=Virtualization
  75   TITLE:=KVM for AMD processors support
  76   DEPENDS:=@TARGET_x86 +kmod-kvm-x86
  77   KCONFIG:=CONFIG_KVM_INTEL=n CONFIG_KVM_AMD
  78   FILES:= $(LINUX_DIR)/arch/$(LINUX_KARCH)/kvm/kvm-amd.ko
  79   AUTOLOAD:=$(call AutoProbe,kvm-amd.ko)
  80 endef
  81
  82 define KernelPackage/kvm-amd/description
  83   Provides support for KVM on AMD processors equipped with the AMD-V
  84   (SVM) extensions.
  85 endef
  86
  87 $(eval $(call KernelPackage,kvm-amd))