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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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b4ba157044
Add ParaVirt steal time feature in host side, VM can search supported features provided by KVM hypervisor, a feature KVM_FEATURE_STEAL_TIME is added here. Like x86, steal time structure is saved in guest memory, one hypercall function KVM_HCALL_FUNC_NOTIFY is added to notify KVM to enable this feature. One CPU attr ioctl command KVM_LOONGARCH_VCPU_PVTIME_CTRL is added to save and restore the base address of steal time structure when a VM is migrated. Signed-off-by: Bibo Mao <maobibo@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
41 lines
1.0 KiB
Plaintext
41 lines
1.0 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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#
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# KVM configuration
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#
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source "virt/kvm/Kconfig"
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menuconfig VIRTUALIZATION
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bool "Virtualization"
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help
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Say Y here to get to see options for using your Linux host to run
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other operating systems inside virtual machines (guests).
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This option alone does not add any kernel code.
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If you say N, all options in this submenu will be skipped and
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disabled.
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if VIRTUALIZATION
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config KVM
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tristate "Kernel-based Virtual Machine (KVM) support"
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depends on AS_HAS_LVZ_EXTENSION
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select HAVE_KVM_DIRTY_RING_ACQ_REL
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select HAVE_KVM_VCPU_ASYNC_IOCTL
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select KVM_COMMON
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select KVM_GENERIC_DIRTYLOG_READ_PROTECT
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select KVM_GENERIC_HARDWARE_ENABLING
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select KVM_GENERIC_MMU_NOTIFIER
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select KVM_MMIO
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select HAVE_KVM_READONLY_MEM
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select KVM_XFER_TO_GUEST_WORK
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select SCHED_INFO
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help
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Support hosting virtualized guest machines using
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hardware virtualization extensions. You will need
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a processor equipped with virtualization extensions.
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If unsure, say N.
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endif # VIRTUALIZATION
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