Enable LoongArch kvm config and add the makefile to support build kvm module. Reviewed-by: Bibo Mao <maobibo@xxxxxxxxxxx> Reported-by: kernel test robot <lkp@xxxxxxxxx> Link: https://lore.kernel.org/oe-kbuild-all/202304131526.iXfLaVZc-lkp@xxxxxxxxx/ Signed-off-by: Tianrui Zhao <zhaotianrui@xxxxxxxxxxx> --- arch/loongarch/Kbuild | 1 + arch/loongarch/Kconfig | 3 ++ arch/loongarch/configs/loongson3_defconfig | 2 + arch/loongarch/kvm/Kconfig | 45 ++++++++++++++++++++++ arch/loongarch/kvm/Makefile | 22 +++++++++++ 5 files changed, 73 insertions(+) create mode 100644 arch/loongarch/kvm/Kconfig create mode 100644 arch/loongarch/kvm/Makefile diff --git a/arch/loongarch/Kbuild b/arch/loongarch/Kbuild index b01f5cdb27..40be8a1696 100644 --- a/arch/loongarch/Kbuild +++ b/arch/loongarch/Kbuild @@ -2,6 +2,7 @@ obj-y += kernel/ obj-y += mm/ obj-y += net/ obj-y += vdso/ +obj-y += kvm/ # for cleaning subdir- += boot diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index ecf282dee5..7f2f7ccc76 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -123,6 +123,7 @@ 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 @@ -650,3 +651,5 @@ source "kernel/power/Kconfig" source "drivers/acpi/Kconfig" endmenu + +source "arch/loongarch/kvm/Kconfig" diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig index d64849b4cb..7acb4ae7af 100644 --- a/arch/loongarch/configs/loongson3_defconfig +++ b/arch/loongarch/configs/loongson3_defconfig @@ -63,6 +63,8 @@ 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_MODULES=y CONFIG_MODULE_FORCE_LOAD=y CONFIG_MODULE_UNLOAD=y diff --git a/arch/loongarch/kvm/Kconfig b/arch/loongarch/kvm/Kconfig new file mode 100644 index 0000000000..bf7d6e7cde --- /dev/null +++ b/arch/loongarch/kvm/Kconfig @@ -0,0 +1,45 @@ +# 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 AS_HAS_LVZ_EXTENSION + def_bool $(as-instr,hvcl 0) + +config KVM + tristate "Kernel-based Virtual Machine (KVM) support" + depends on HAVE_KVM + depends on AS_HAS_LVZ_EXTENSION + select MMU_NOTIFIER + select ANON_INODES + select PREEMPT_NOTIFIERS + select KVM_MMIO + select KVM_GENERIC_DIRTYLOG_READ_PROTECT + select KVM_GENERIC_HARDWARE_ENABLING + select KVM_XFER_TO_GUEST_WORK + select HAVE_KVM_DIRTY_RING_ACQ_REL + select HAVE_KVM_VCPU_ASYNC_IOCTL + select HAVE_KVM_EVENTFD + select SRCU + help + Support hosting virtualized guest machines using hardware + virtualization extensions. You will need a fairly processor + equipped with virtualization extensions. + + If unsure, say N. + +endif # VIRTUALIZATION diff --git a/arch/loongarch/kvm/Makefile b/arch/loongarch/kvm/Makefile new file mode 100644 index 0000000000..2335e873a6 --- /dev/null +++ b/arch/loongarch/kvm/Makefile @@ -0,0 +1,22 @@ +# 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 += main.o +kvm-y += vm.o +kvm-y += vmid.o +kvm-y += tlb.o +kvm-y += mmu.o +kvm-y += vcpu.o +kvm-y += exit.o +kvm-y += interrupt.o +kvm-y += timer.o +kvm-y += switch.o +kvm-y += csr_ops.o -- 2.27.0
