[v12,29/31] LoongArch: KVM: Enable kvm config and add the makefile
Commit Message
Enable LoongArch kvm config and add the makefile to support build kvm
module.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202304131526.iXfLaVZc-lkp@intel.com/
Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
---
arch/loongarch/Kbuild | 1 +
arch/loongarch/Kconfig | 2 ++
arch/loongarch/configs/loongson3_defconfig | 2 ++
arch/loongarch/kvm/Kconfig | 38 ++++++++++++++++++++++
arch/loongarch/kvm/Makefile | 22 +++++++++++++
5 files changed, 65 insertions(+)
create mode 100644 arch/loongarch/kvm/Kconfig
create mode 100644 arch/loongarch/kvm/Makefile
Comments
Reviewed-by: Bibo, Mao <maobibo@loongson.cn>
在 2023/5/30 09:52, Tianrui Zhao 写道:
> Enable LoongArch kvm config and add the makefile to support build kvm
> module.
>
> Reported-by: kernel test robot <lkp@intel.com>
> Link: https://lore.kernel.org/oe-kbuild-all/202304131526.iXfLaVZc-lkp@intel.com/
> Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
> ---
> arch/loongarch/Kbuild | 1 +
> arch/loongarch/Kconfig | 2 ++
> arch/loongarch/configs/loongson3_defconfig | 2 ++
> arch/loongarch/kvm/Kconfig | 38 ++++++++++++++++++++++
> arch/loongarch/kvm/Makefile | 22 +++++++++++++
> 5 files changed, 65 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 b01f5cdb27e0..40be8a1696f9 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 d38b066fc931..16ddf4f6f9bd 100644
> --- a/arch/loongarch/Kconfig
> +++ b/arch/loongarch/Kconfig
> @@ -113,6 +113,7 @@ 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
> @@ -604,3 +605,4 @@ source "drivers/acpi/Kconfig"
> endmenu
>
> source "drivers/firmware/Kconfig"
> +source "arch/loongarch/kvm/Kconfig"
> diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig
> index 6cd26dd3c134..3c0cbe6ad08f 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 000000000000..8a999b4c0232
> --- /dev/null
> +++ b/arch/loongarch/kvm/Kconfig
> @@ -0,0 +1,38 @@
> +# 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 HAVE_KVM
> + select MMU_NOTIFIER
> + select ANON_INODES
> + select PREEMPT_NOTIFIERS
> + select KVM_MMIO
> + select KVM_GENERIC_DIRTYLOG_READ_PROTECT
> + 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 000000000000..2335e873a6ef
> --- /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
@@ -2,6 +2,7 @@ obj-y += kernel/
obj-y += mm/
obj-y += net/
obj-y += vdso/
+obj-y += kvm/
# for cleaning
subdir- += boot
@@ -113,6 +113,7 @@ 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
@@ -604,3 +605,4 @@ source "drivers/acpi/Kconfig"
endmenu
source "drivers/firmware/Kconfig"
+source "arch/loongarch/kvm/Kconfig"
@@ -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
new file mode 100644
@@ -0,0 +1,38 @@
+# 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 HAVE_KVM
+ select MMU_NOTIFIER
+ select ANON_INODES
+ select PREEMPT_NOTIFIERS
+ select KVM_MMIO
+ select KVM_GENERIC_DIRTYLOG_READ_PROTECT
+ 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
new file mode 100644
@@ -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