mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-16 07:24:39 +08:00
bf10efbb81
Add EVENTFD support for KVM/MIPS, which is needed by VHOST. Tested on Loongson-3 platform. Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com> Signed-off-by: Huacai Chen <chenhc@lemote.com> Co-developed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <1590220602-3547-5-git-send-email-chenhc@lemote.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
77 lines
2.0 KiB
Plaintext
77 lines
2.0 KiB
Plaintext
# 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
|
|
depends on MIPS_FP_SUPPORT
|
|
select EXPORT_UASM
|
|
select PREEMPT_NOTIFIERS
|
|
select KVM_GENERIC_DIRTYLOG_READ_PROTECT
|
|
select HAVE_KVM_EVENTFD
|
|
select HAVE_KVM_VCPU_ASYNC_IOCTL
|
|
select KVM_MMIO
|
|
select MMU_NOTIFIER
|
|
select SRCU
|
|
---help---
|
|
Support for hosting Guest kernels.
|
|
|
|
choice
|
|
prompt "Virtualization mode"
|
|
depends on KVM
|
|
default KVM_MIPS_TE
|
|
|
|
config KVM_MIPS_TE
|
|
bool "Trap & Emulate"
|
|
---help---
|
|
Use trap and emulate to virtualize 32-bit guests in user mode. This
|
|
does not require any special hardware Virtualization support beyond
|
|
standard MIPS32/64 r2 or later, but it does require the guest kernel
|
|
to be configured with CONFIG_KVM_GUEST=y so that it resides in the
|
|
user address segment.
|
|
|
|
config KVM_MIPS_VZ
|
|
bool "MIPS Virtualization (VZ) ASE"
|
|
---help---
|
|
Use the MIPS Virtualization (VZ) ASE to virtualize guests. This
|
|
supports running unmodified guest kernels (with CONFIG_KVM_GUEST=n),
|
|
but requires hardware support.
|
|
|
|
endchoice
|
|
|
|
config KVM_MIPS_DYN_TRANS
|
|
bool "KVM/MIPS: Dynamic binary translation to reduce traps"
|
|
depends on KVM_MIPS_TE
|
|
default y
|
|
---help---
|
|
When running in Trap & Emulate mode patch privileged
|
|
instructions to reduce the number of traps.
|
|
|
|
If unsure, say Y.
|
|
|
|
config KVM_MIPS_DEBUG_COP0_COUNTERS
|
|
bool "Maintain counters for COP0 accesses"
|
|
depends on KVM
|
|
---help---
|
|
Maintain statistics for Guest COP0 accesses.
|
|
A histogram of COP0 accesses is printed when the VM is
|
|
shutdown.
|
|
|
|
If unsure, say N.
|
|
|
|
endif # VIRTUALIZATION
|