Commit c1fc48aa authored by Tianrui Zhao's avatar Tianrui Zhao Committed by Huacai Chen
Browse files

LoongArch: KVM: Enable kvm config and add the makefile 



Enable LoongArch kvm config and add the makefile to support build kvm
module.

Reviewed-by: default avatarBibo Mao <maobibo@loongson.cn>
Tested-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
Signed-off-by: default avatarTianrui Zhao <zhaotianrui@loongson.cn>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent 39fdf4be

arch/loongarch/Kbuild

+2 −0
Original line number Diff line number Diff line
@@ -3,5 +3,7 @@ obj-y += mm/ 
obj-y += net/

obj-y += vdso/



obj-$(CONFIG_KVM) += kvm/



# for cleaning

subdir- += boot

arch/loongarch/Kconfig

+6 −0
Original line number Diff line number Diff line
@@ -129,6 +129,7 @@ config LOONGARCH 
	select HAVE_KPROBES

	select HAVE_KPROBES_ON_FTRACE

	select HAVE_KRETPROBES

	select HAVE_KVM

	select HAVE_MOD_ARCH_SPECIFIC

	select HAVE_NMI

	select HAVE_PCI
@@ -263,6 +264,9 @@ config AS_HAS_LASX_EXTENSION 
config AS_HAS_LBT_EXTENSION

	def_bool $(as-instr,movscr2gr \$a0$(comma)\$scr0)



config AS_HAS_LVZ_EXTENSION

	def_bool $(as-instr,hvcl 0)



menu "Kernel type and options"



source "kernel/Kconfig.hz"
@@ -676,3 +680,5 @@ source "kernel/power/Kconfig" 
source "drivers/acpi/Kconfig"



endmenu



source "arch/loongarch/kvm/Kconfig"

arch/loongarch/configs/loongson3_defconfig

+2 −0
Original line number Diff line number Diff line
@@ -66,6 +66,8 @@ CONFIG_EFI_ZBOOT=y 
CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER=y

CONFIG_EFI_CAPSULE_LOADER=m

CONFIG_EFI_TEST=m

CONFIG_VIRTUALIZATION=y

CONFIG_KVM=m

CONFIG_JUMP_LABEL=y

CONFIG_MODULES=y

CONFIG_MODULE_FORCE_LOAD=y

arch/loongarch/kvm/Kconfig

0 → 100644
+40 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0

#

# KVM configuration

#



source "virt/kvm/Kconfig"



menuconfig VIRTUALIZATION

	bool "Virtualization"

	help

	  Say Y here to get to see options for using your Linux host to run

	  other operating systems inside virtual machines (guests).

	  This option alone does not add any kernel code.



	  If you say N, all options in this submenu will be skipped and

	  disabled.



if VIRTUALIZATION



config KVM

	tristate "Kernel-based Virtual Machine (KVM) support"

	depends on AS_HAS_LVZ_EXTENSION

	depends on HAVE_KVM

	select HAVE_KVM_DIRTY_RING_ACQ_REL

	select HAVE_KVM_EVENTFD

	select HAVE_KVM_VCPU_ASYNC_IOCTL

	select KVM_GENERIC_DIRTYLOG_READ_PROTECT

	select KVM_GENERIC_HARDWARE_ENABLING

	select KVM_MMIO

	select KVM_XFER_TO_GUEST_WORK

	select MMU_NOTIFIER

	select PREEMPT_NOTIFIERS

	help

	  Support hosting virtualized guest machines using

	  hardware virtualization extensions. You will need

	  a processor equipped with virtualization extensions.



	  If unsure, say N.



endif # VIRTUALIZATION

arch/loongarch/kvm/Makefile

0 → 100644
+22 −0
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# SPDX-License-Identifier: GPL-2.0

#

# Makefile for LoongArch KVM support

#



ccflags-y += -I $(srctree)/$(src)



include $(srctree)/virt/kvm/Makefile.kvm



obj-$(CONFIG_KVM) += kvm.o



kvm-y += exit.o

kvm-y += interrupt.o

kvm-y += main.o

kvm-y += mmu.o

kvm-y += switch.o

kvm-y += timer.o

kvm-y += tlb.o

kvm-y += vcpu.o

kvm-y += vm.o



CFLAGS_exit.o	+= $(call cc-option,-Wno-override-init,)