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https://github.com/aljazceru/kata-containers.git
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31e2925a9a
We need this configuration due to a limitation in seabios firmware in handling hotplug for PCI devices with large BARS. Long term, this needs to be fixed in the firmware. Fixes #594 Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
204 lines
7.7 KiB
TOML
204 lines
7.7 KiB
TOML
# Copyright (c) 2017-2018 Intel Corporation
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# XXX: WARNING: this file is auto-generated.
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# XXX:
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# XXX: Source file: "@CONFIG_IN@"
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# XXX: Project:
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# XXX: Name: @PROJECT_NAME@
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# XXX: Type: @PROJECT_TYPE@
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[hypervisor.qemu]
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path = "@QEMUPATH@"
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kernel = "@KERNELPATH@"
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initrd = "@INITRDPATH@"
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image = "@IMAGEPATH@"
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machine_type = "@MACHINETYPE@"
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# Optional space-separated list of options to pass to the guest kernel.
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# For example, use `kernel_params = "vsyscall=emulate"` if you are having
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# trouble running pre-2.15 glibc.
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#
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# WARNING: - any parameter specified here will take priority over the default
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# parameter value of the same name used to start the virtual machine.
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# Do not set values here unless you understand the impact of doing so as you
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# may stop the virtual machine from booting.
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# To see the list of default parameters, enable hypervisor debug, create a
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# container and look for 'default-kernel-parameters' log entries.
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kernel_params = "@KERNELPARAMS@"
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# Path to the firmware.
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# If you want that qemu uses the default firmware leave this option empty
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firmware = "@FIRMWAREPATH@"
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# Machine accelerators
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# comma-separated list of machine accelerators to pass to the hypervisor.
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# For example, `machine_accelerators = "nosmm,nosmbus,nosata,nopit,static-prt,nofw"`
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machine_accelerators="@MACHINEACCELERATORS@"
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# Default number of vCPUs per SB/VM:
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# unspecified or 0 --> will be set to @DEFVCPUS@
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# < 0 --> will be set to the actual number of physical cores
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# > 0 <= number of physical cores --> will be set to the specified number
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# > number of physical cores --> will be set to the actual number of physical cores
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default_vcpus = 1
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# Default maximum number of vCPUs per SB/VM:
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# unspecified or == 0 --> will be set to the actual number of physical cores or to the maximum number
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# of vCPUs supported by KVM if that number is exceeded
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# > 0 <= number of physical cores --> will be set to the specified number
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# > number of physical cores --> will be set to the actual number of physical cores or to the maximum number
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# of vCPUs supported by KVM if that number is exceeded
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# WARNING: Depending of the architecture, the maximum number of vCPUs supported by KVM is used when
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# the actual number of physical cores is greater than it.
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# WARNING: Be aware that this value impacts the virtual machine's memory footprint and CPU
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# the hotplug functionality. For example, `default_maxvcpus = 240` specifies that until 240 vCPUs
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# can be added to a SB/VM, but the memory footprint will be big. Another example, with
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# `default_maxvcpus = 8` the memory footprint will be small, but 8 will be the maximum number of
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# vCPUs supported by the SB/VM. In general, we recommend that you do not edit this variable,
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# unless you know what are you doing.
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default_maxvcpus = @DEFMAXVCPUS@
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# Bridges can be used to hot plug devices.
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# Limitations:
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# * Currently only pci bridges are supported
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# * Until 30 devices per bridge can be hot plugged.
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# * Until 5 PCI bridges can be cold plugged per VM.
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# This limitation could be a bug in qemu or in the kernel
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# Default number of bridges per SB/VM:
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# unspecified or 0 --> will be set to @DEFBRIDGES@
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# > 1 <= 5 --> will be set to the specified number
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# > 5 --> will be set to 5
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default_bridges = @DEFBRIDGES@
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# Default memory size in MiB for SB/VM.
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# If unspecified then it will be set @DEFMEMSZ@ MiB.
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#default_memory = @DEFMEMSZ@
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# Disable block device from being used for a container's rootfs.
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# In case of a storage driver like devicemapper where a container's
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# root file system is backed by a block device, the block device is passed
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# directly to the hypervisor for performance reasons.
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# This flag prevents the block device from being passed to the hypervisor,
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# 9pfs is used instead to pass the rootfs.
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disable_block_device_use = @DEFDISABLEBLOCK@
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# Block storage driver to be used for the hypervisor in case the container
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# rootfs is backed by a block device. This is either virtio-scsi or
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# virtio-blk.
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block_device_driver = "@DEFBLOCKSTORAGEDRIVER@"
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# Enable iothreads (data-plane) to be used. This causes IO to be
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# handled in a separate IO thread. This is currently only implemented
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# for SCSI.
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#
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enable_iothreads = @DEFENABLEIOTHREADS@
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# Enable pre allocation of VM RAM, default false
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# Enabling this will result in lower container density
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# as all of the memory will be allocated and locked
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# This is useful when you want to reserve all the memory
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# upfront or in the cases where you want memory latencies
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# to be very predictable
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# Default false
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#enable_mem_prealloc = true
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# Enable huge pages for VM RAM, default false
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# Enabling this will result in the VM memory
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# being allocated using huge pages.
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# This is useful when you want to use vhost-user network
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# stacks within the container. This will automatically
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# result in memory pre allocation
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#enable_hugepages = true
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# Enable swap of vm memory. Default false.
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# The behaviour is undefined if mem_prealloc is also set to true
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#enable_swap = true
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# This option changes the default hypervisor and kernel parameters
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# to enable debug output where available. This extra output is added
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# to the proxy logs, but only when proxy debug is also enabled.
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#
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# Default false
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#enable_debug = true
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# Disable the customizations done in the runtime when it detects
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# that it is running on top a VMM. This will result in the runtime
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# behaving as it would when running on bare metal.
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#
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#disable_nesting_checks = true
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# This is the msize used for 9p shares. It is the number of bytes
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# used for 9p packet payload.
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#msize_9p = @DEFMSIZE9P@
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# If true and vsocks are supported, use vsocks to communicate directly
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# with the agent and no proxy is started, otherwise use unix
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# sockets and start a proxy to communicate with the agent.
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# Default false
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#use_vsock = true
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# VFIO devices are hotplugged on a bridge by default.
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# Enable hotplugging on root bus. This may be required for devices with
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# a large PCI bar, as this is a current limitation with hotplugging on
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# a bridge. This value is valid for "pc" machine type.
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# Default false
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#hotplug_vfio_on_root_bus = true
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[factory]
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# VM templating support. Once enabled, new VMs are created from template
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# using vm cloning. They will share the same initial kernel, initramfs and
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# agent memory by mapping it readonly. It helps speeding up new container
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# creation and saves a lot of memory if there are many kata containers running
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# on the same host.
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#
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# When disabled, new VMs are created from scratch.
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#
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# Default false
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#enable_template = true
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[proxy.@PROJECT_TYPE@]
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path = "@PROXYPATH@"
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# If enabled, proxy messages will be sent to the system log
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# (default: disabled)
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#enable_debug = true
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[shim.@PROJECT_TYPE@]
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path = "@SHIMPATH@"
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# If enabled, shim messages will be sent to the system log
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# (default: disabled)
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#enable_debug = true
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[agent.@PROJECT_TYPE@]
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# There is no field for this section. The goal is only to be able to
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# specify which type of agent the user wants to use.
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[runtime]
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# If enabled, the runtime will log additional debug messages to the
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# system log
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# (default: disabled)
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#enable_debug = true
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#
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# Internetworking model
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# Determines how the VM should be connected to the
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# the container network interface
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# Options:
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#
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# - bridged
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# Uses a linux bridge to interconnect the container interface to
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# the VM. Works for most cases except macvlan and ipvlan.
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#
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# - macvtap
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# Used when the Container network interface can be bridged using
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# macvtap.
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internetworking_model="@DEFNETWORKMODEL@"
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# If enabled, the runtime will create opentracing.io traces and spans.
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# (See https://www.jaegertracing.io/docs/getting-started).
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# (default: disabled)
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#enable_tracing = true
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