From nobody Thu Feb 12 06:43:56 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 210CCEDE9B8 for ; Fri, 15 Sep 2023 01:51:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231613AbjIOBvU (ORCPT ); Thu, 14 Sep 2023 21:51:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36070 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231792AbjIOBuz (ORCPT ); Thu, 14 Sep 2023 21:50:55 -0400 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 972903AA0; Thu, 14 Sep 2023 18:50:17 -0700 (PDT) Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8Dxl+hOuANlmf8nAA--.41047S3; Fri, 15 Sep 2023 09:50:06 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Axndw9uANl+ioGAA--.11927S29; Fri, 15 Sep 2023 09:50:04 +0800 (CST) From: Tianrui Zhao To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: Paolo Bonzini , Huacai Chen , WANG Xuerui , Greg Kroah-Hartman , loongarch@lists.linux.dev, Jens Axboe , Mark Brown , Alex Deucher , Oliver Upton , maobibo@loongson.cn, Xi Ruoyao , zhaotianrui@loongson.cn, kernel test robot Subject: [PATCH v21 27/29] LoongArch: KVM: Enable kvm config and add the makefile Date: Fri, 15 Sep 2023 09:49:47 +0800 Message-Id: <20230915014949.1222777-28-zhaotianrui@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230915014949.1222777-1-zhaotianrui@loongson.cn> References: <20230915014949.1222777-1-zhaotianrui@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: AQAAf8Axndw9uANl+ioGAA--.11927S29 X-CM-SenderInfo: p2kd03xldq233l6o00pqjv00gofq/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Enable LoongArch kvm config and add the makefile to support build kvm module. Reviewed-by: Bibo Mao Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202304131526.iXfLaVZc-lkp@int= el.com/ Signed-off-by: Tianrui Zhao --- arch/loongarch/Kbuild | 1 + arch/loongarch/Kconfig | 3 ++ arch/loongarch/configs/loongson3_defconfig | 2 + arch/loongarch/kvm/Kconfig | 45 ++++++++++++++++++++++ arch/loongarch/kvm/Makefile | 20 ++++++++++ 5 files changed, 71 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..9679c798c2 100644 --- a/arch/loongarch/Kbuild +++ b/arch/loongarch/Kbuild @@ -2,6 +2,7 @@ obj-y +=3D kernel/ obj-y +=3D mm/ obj-y +=3D net/ obj-y +=3D vdso/ +obj-$(CONFIG_KVM) +=3D kvm/ =20 # for cleaning subdir- +=3D boot diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index e14396a2dd..0abb1f12eb 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -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 @@ -676,3 +677,5 @@ source "kernel/power/Kconfig" source "drivers/acpi/Kconfig" =20 endmenu + +source "arch/loongarch/kvm/Kconfig" diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/co= nfigs/loongson3_defconfig index a3b52aaa83..2a8edebcc5 100644 --- a/arch/loongarch/configs/loongson3_defconfig +++ b/arch/loongarch/configs/loongson3_defconfig @@ -67,11 +67,13 @@ CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER=3Dy CONFIG_EFI_CAPSULE_LOADER=3Dm CONFIG_EFI_TEST=3Dm CONFIG_JUMP_LABEL=3Dy +CONFIG_KVM=3Dm CONFIG_MODULES=3Dy CONFIG_MODULE_FORCE_LOAD=3Dy CONFIG_MODULE_UNLOAD=3Dy CONFIG_MODULE_FORCE_UNLOAD=3Dy CONFIG_MODVERSIONS=3Dy +CONFIG_VIRTUALIZATION=3Dy CONFIG_BLK_DEV_THROTTLING=3Dy CONFIG_PARTITION_ADVANCED=3Dy CONFIG_BSD_DISKLABEL=3Dy diff --git a/arch/loongarch/kvm/Kconfig b/arch/loongarch/kvm/Kconfig new file mode 100644 index 0000000000..b517785c50 --- /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 AS_HAS_LVZ_EXTENSION + depends on HAVE_KVM + select ANON_INODES + 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 + select SRCU + 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 diff --git a/arch/loongarch/kvm/Makefile b/arch/loongarch/kvm/Makefile new file mode 100644 index 0000000000..77e9ba2b7a --- /dev/null +++ b/arch/loongarch/kvm/Makefile @@ -0,0 +1,20 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for LoongArch KVM support +# + +ccflags-y +=3D -I $(srctree)/$(src) + +include $(srctree)/virt/kvm/Makefile.kvm + +obj-$(CONFIG_KVM) +=3D kvm.o + +kvm-y +=3D exit.o +kvm-y +=3D interrupt.o +kvm-y +=3D main.o +kvm-y +=3D mmu.o +kvm-y +=3D switch.o +kvm-y +=3D timer.o +kvm-y +=3D tlb.o +kvm-y +=3D vcpu.o +kvm-y +=3D vm.o --=20 2.39.1