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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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f55ffaf896
Enable ring-based dirty memory tracking on riscv: - Enable CONFIG_HAVE_KVM_DIRTY_RING_ACQ_REL as riscv is weakly ordered. - Set KVM_DIRTY_LOG_PAGE_OFFSET for the ring buffer's physical page offset. - Add a check to kvm_vcpu_kvm_riscv_check_vcpu_requests for checking whether the dirty ring is soft full. To handle vCPU requests that cause exits to userspace, modified the `kvm_riscv_check_vcpu_requests` to return a value (currently only returns 0 or 1). Signed-off-by: Quan Zhou <zhouquan@iscas.ac.cn> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20e116efb1f7aff211dd8e3cf8990c5521ed5f34.1749810735.git.zhouquan@iscas.ac.cn Signed-off-by: Anup Patel <anup@brainfault.org>
42 lines
1 KiB
Text
42 lines
1 KiB
Text
# 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 RISCV_SBI && MMU
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select HAVE_KVM_IRQCHIP
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select HAVE_KVM_IRQ_ROUTING
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select HAVE_KVM_MSI
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select HAVE_KVM_VCPU_ASYNC_IOCTL
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select HAVE_KVM_READONLY_MEM
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select HAVE_KVM_DIRTY_RING_ACQ_REL
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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_MMIO
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select KVM_XFER_TO_GUEST_WORK
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select KVM_GENERIC_MMU_NOTIFIER
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select SCHED_INFO
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select GUEST_PERF_EVENTS if PERF_EVENTS
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help
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Support hosting virtualized guest machines.
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If unsure, say N.
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endif # VIRTUALIZATION
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