d461c27973
We do not need a dedicated section for notes. By eliminating a specially parsed section, these notes can be treated as normal rST paragraphs in the new QMP reference manual, and can be placed and styled much more flexibly. Convert all existing "Note" and "Notes" sections to pure rST. As part of the conversion, capitalize the first letter of each sentence and add trailing punctuation where appropriate to ensure notes look sensible and consistent in rendered HTML documentation. Markup is also re-aligned to the de-facto standard of 3 spaces for directives. Update docs/devel/qapi-code-gen.rst to reflect the new paradigm, and update the QAPI parser to prohibit "Note" sections while suggesting a new syntax. The exact formatting to use is a matter of taste, but a good candidate is simply: .. note:: lorem ipsum ... ... dolor sit amet ... ... consectetur adipiscing elit ... ... but there are other choices, too. The Sphinx readthedocs theme offers theming for the following forms (capitalization unimportant); all are adorned with a (!) symbol () in the title bar for rendered HTML docs. See https://sphinx-rtd-theme.readthedocs.io/en/stable/demo/demo.html#admonitions for examples of each directive/admonition in use. These are rendered in orange: .. Attention:: ... .. Caution:: ... .. WARNING:: ... These are rendered in red: .. DANGER:: ... .. Error:: ... These are rendered in green: .. Hint:: ... .. Important:: ... .. Tip:: ... These are rendered in blue: .. Note:: ... .. admonition:: custom title admonition body text This patch uses ".. note::" almost everywhere, with just two "caution" directives. Several instances of "Notes:" have been converted to merely ".. note::", or multiple ".. note::" where appropriate. ".. admonition:: notes" is used in a few places where we had an ordered list of multiple notes that would not make sense as standalone/separate admonitions. Two "Note:" following "Example:" have been turned into ordinary paragraphs within the example. NOTE: Because qapidoc.py does not attempt to preserve source ordering of sections, the conversion of Notes from a "tagged section" to an "untagged section" means that rendering order for some notes *may change* as a result of this patch. The forthcoming qapidoc.py rewrite strictly preserves source ordering in the rendered documentation, so this issue will be rectified in the new generator. Signed-off-by: John Snow <jsnow@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> [for block*.json] Message-ID: <20240626222128.406106-11-jsnow@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Commit message clarified slightly, period added to one more note] Signed-off-by: Markus Armbruster <armbru@redhat.com>
1203 lines
36 KiB
Python
1203 lines
36 KiB
Python
# -*- Mode: Python -*-
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# vim: filetype=python
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#
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# This work is licensed under the terms of the GNU GPL, version 2 or later.
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# See the COPYING file in the top-level directory.
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{ 'include': 'authz.json' }
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{ 'include': 'block-core.json' }
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{ 'include': 'common.json' }
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{ 'include': 'crypto.json' }
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##
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# = QEMU Object Model (QOM)
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##
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##
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# @ObjectPropertyInfo:
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#
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# @name: the name of the property
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#
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# @type: the type of the property. This will typically come in one of
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# four forms:
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#
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# 1) A primitive type such as 'u8', 'u16', 'bool', 'str', or
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# 'double'. These types are mapped to the appropriate JSON
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# type.
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#
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# 2) A child type in the form 'child<subtype>' where subtype is a
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# qdev device type name. Child properties create the
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# composition tree.
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#
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# 3) A link type in the form 'link<subtype>' where subtype is a
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# qdev device type name. Link properties form the device model
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# graph.
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#
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# @description: if specified, the description of the property.
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#
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# @default-value: the default value, if any (since 5.0)
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#
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# Since: 1.2
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##
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{ 'struct': 'ObjectPropertyInfo',
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'data': { 'name': 'str',
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'type': 'str',
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'*description': 'str',
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'*default-value': 'any' } }
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##
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# @qom-list:
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#
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# This command will list any properties of a object given a path in
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# the object model.
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#
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# @path: the path within the object model. See @qom-get for a
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# description of this parameter.
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#
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# Returns: a list of @ObjectPropertyInfo that describe the properties
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# of the object.
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#
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# Since: 1.2
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#
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# Example:
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#
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# -> { "execute": "qom-list",
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# "arguments": { "path": "/chardevs" } }
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# <- { "return": [ { "name": "type", "type": "string" },
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# { "name": "parallel0", "type": "child<chardev-vc>" },
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# { "name": "serial0", "type": "child<chardev-vc>" },
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# { "name": "mon0", "type": "child<chardev-stdio>" } ] }
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##
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{ 'command': 'qom-list',
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'data': { 'path': 'str' },
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'returns': [ 'ObjectPropertyInfo' ],
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'allow-preconfig': true }
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##
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# @qom-get:
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#
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# This command will get a property from a object model path and return
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# the value.
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#
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# @path: The path within the object model. There are two forms of
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# supported paths--absolute and partial paths.
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#
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# Absolute paths are derived from the root object and can follow
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# child<> or link<> properties. Since they can follow link<>
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# properties, they can be arbitrarily long. Absolute paths look
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# like absolute filenames and are prefixed with a leading slash.
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#
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# Partial paths look like relative filenames. They do not begin
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# with a prefix. The matching rules for partial paths are subtle
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# but designed to make specifying objects easy. At each level of
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# the composition tree, the partial path is matched as an absolute
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# path. The first match is not returned. At least two matches
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# are searched for. A successful result is only returned if only
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# one match is found. If more than one match is found, a flag is
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# return to indicate that the match was ambiguous.
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#
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# @property: The property name to read
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#
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# Returns: The property value. The type depends on the property type.
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# child<> and link<> properties are returned as #str pathnames.
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# All integer property types (u8, u16, etc) are returned as #int.
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#
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# Since: 1.2
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#
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# Examples:
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#
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# 1. Use absolute path
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#
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# -> { "execute": "qom-get",
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# "arguments": { "path": "/machine/unattached/device[0]",
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# "property": "hotplugged" } }
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# <- { "return": false }
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#
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# 2. Use partial path
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#
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# -> { "execute": "qom-get",
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# "arguments": { "path": "unattached/sysbus",
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# "property": "type" } }
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# <- { "return": "System" }
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##
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{ 'command': 'qom-get',
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'data': { 'path': 'str', 'property': 'str' },
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'returns': 'any',
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'allow-preconfig': true }
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##
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# @qom-set:
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#
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# This command will set a property from a object model path.
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#
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# @path: see @qom-get for a description of this parameter
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#
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# @property: the property name to set
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#
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# @value: a value who's type is appropriate for the property type.
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# See @qom-get for a description of type mapping.
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#
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# Since: 1.2
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#
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# Example:
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#
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# -> { "execute": "qom-set",
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# "arguments": { "path": "/machine",
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# "property": "graphics",
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# "value": false } }
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# <- { "return": {} }
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##
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{ 'command': 'qom-set',
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'data': { 'path': 'str', 'property': 'str', 'value': 'any' },
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'allow-preconfig': true }
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##
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# @ObjectTypeInfo:
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#
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# This structure describes a search result from @qom-list-types
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#
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# @name: the type name found in the search
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#
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# @abstract: the type is abstract and can't be directly instantiated.
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# Omitted if false. (since 2.10)
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#
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# @parent: Name of parent type, if any (since 2.10)
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#
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# Since: 1.1
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##
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{ 'struct': 'ObjectTypeInfo',
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'data': { 'name': 'str', '*abstract': 'bool', '*parent': 'str' } }
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##
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# @qom-list-types:
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#
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# This command will return a list of types given search parameters
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#
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# @implements: if specified, only return types that implement this
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# type name
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#
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# @abstract: if true, include abstract types in the results
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#
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# Returns: a list of @ObjectTypeInfo or an empty list if no results
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# are found
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#
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# Since: 1.1
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##
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{ 'command': 'qom-list-types',
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'data': { '*implements': 'str', '*abstract': 'bool' },
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'returns': [ 'ObjectTypeInfo' ],
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'allow-preconfig': true }
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##
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# @qom-list-properties:
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#
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# List properties associated with a QOM object.
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#
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# @typename: the type name of an object
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#
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# .. note:: Objects can create properties at runtime, for example to
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# describe links between different devices and/or objects. These
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# properties are not included in the output of this command.
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#
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# Returns: a list of ObjectPropertyInfo describing object properties
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#
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# Since: 2.12
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##
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{ 'command': 'qom-list-properties',
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'data': { 'typename': 'str'},
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'returns': [ 'ObjectPropertyInfo' ],
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'allow-preconfig': true }
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##
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# @CanHostSocketcanProperties:
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#
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# Properties for can-host-socketcan objects.
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#
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# @if: interface name of the host system CAN bus to connect to
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#
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# @canbus: object ID of the can-bus object to connect to the host
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# interface
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#
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# Since: 2.12
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##
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{ 'struct': 'CanHostSocketcanProperties',
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'data': { 'if': 'str',
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'canbus': 'str' } }
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##
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# @ColoCompareProperties:
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#
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# Properties for colo-compare objects.
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#
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# @primary_in: name of the character device backend to use for the
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# primary input (incoming packets are redirected to @outdev)
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#
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# @secondary_in: name of the character device backend to use for
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# secondary input (incoming packets are only compared to the input
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# on @primary_in and then dropped)
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#
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# @outdev: name of the character device backend to use for output
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#
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# @iothread: name of the iothread to run in
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#
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# @notify_dev: name of the character device backend to be used to
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# communicate with the remote colo-frame (only for Xen COLO)
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#
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# @compare_timeout: the maximum time to hold a packet from @primary_in
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# for comparison with an incoming packet on @secondary_in in
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# milliseconds (default: 3000)
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#
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# @expired_scan_cycle: the interval at which colo-compare checks
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# whether packets from @primary have timed out, in milliseconds
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# (default: 3000)
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#
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# @max_queue_size: the maximum number of packets to keep in the queue
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# for comparing with incoming packets from @secondary_in. If the
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# queue is full and additional packets are received, the
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# additional packets are dropped. (default: 1024)
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#
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# @vnet_hdr_support: if true, vnet header support is enabled
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# (default: false)
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#
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# Since: 2.8
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##
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{ 'struct': 'ColoCompareProperties',
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'data': { 'primary_in': 'str',
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'secondary_in': 'str',
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'outdev': 'str',
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'iothread': 'str',
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'*notify_dev': 'str',
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'*compare_timeout': 'uint64',
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'*expired_scan_cycle': 'uint32',
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'*max_queue_size': 'uint32',
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'*vnet_hdr_support': 'bool' } }
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##
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# @CryptodevBackendProperties:
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#
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# Properties for cryptodev-backend and cryptodev-backend-builtin
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# objects.
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#
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# @queues: the number of queues for the cryptodev backend. Ignored
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# for cryptodev-backend and must be 1 for
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# cryptodev-backend-builtin. (default: 1)
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#
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# @throttle-bps: limit total bytes per second (Since 8.0)
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#
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# @throttle-ops: limit total operations per second (Since 8.0)
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#
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# Since: 2.8
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##
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{ 'struct': 'CryptodevBackendProperties',
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'data': { '*queues': 'uint32',
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'*throttle-bps': 'uint64',
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'*throttle-ops': 'uint64' } }
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##
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# @CryptodevVhostUserProperties:
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#
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# Properties for cryptodev-vhost-user objects.
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#
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# @chardev: the name of a Unix domain socket character device that
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# connects to the vhost-user server
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#
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# Since: 2.12
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##
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{ 'struct': 'CryptodevVhostUserProperties',
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'base': 'CryptodevBackendProperties',
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'data': { 'chardev': 'str' } }
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##
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# @DBusVMStateProperties:
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#
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# Properties for dbus-vmstate objects.
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#
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# @addr: the name of the DBus bus to connect to
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#
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# @id-list: a comma separated list of DBus IDs of helpers whose data
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# should be included in the VM state on migration
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#
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# Since: 5.0
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##
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{ 'struct': 'DBusVMStateProperties',
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'data': { 'addr': 'str' ,
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'*id-list': 'str' } }
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##
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# @NetfilterInsert:
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#
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# Indicates where to insert a netfilter relative to a given other
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# filter.
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#
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# @before: insert before the specified filter
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#
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# @behind: insert behind the specified filter
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#
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# Since: 5.0
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##
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{ 'enum': 'NetfilterInsert',
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'data': [ 'before', 'behind' ] }
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##
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# @NetfilterProperties:
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#
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# Properties for objects of classes derived from netfilter.
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#
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# @netdev: id of the network device backend to filter
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#
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# @queue: indicates which queue(s) to filter (default: all)
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#
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# @status: indicates whether the filter is enabled ("on") or disabled
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# ("off") (default: "on")
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#
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# @position: specifies where the filter should be inserted in the
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# filter list. "head" means the filter is inserted at the head of
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# the filter list, before any existing filters. "tail" means the
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# filter is inserted at the tail of the filter list, behind any
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# existing filters (default). "id=<id>" means the filter is
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# inserted before or behind the filter specified by <id>,
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# depending on the @insert property. (default: "tail")
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#
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# @insert: where to insert the filter relative to the filter given in
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# @position. Ignored if @position is "head" or "tail".
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# (default: behind)
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#
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# Since: 2.5
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##
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{ 'struct': 'NetfilterProperties',
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'data': { 'netdev': 'str',
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'*queue': 'NetFilterDirection',
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'*status': 'str',
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'*position': 'str',
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'*insert': 'NetfilterInsert' } }
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##
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# @FilterBufferProperties:
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#
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# Properties for filter-buffer objects.
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#
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# @interval: a non-zero interval in microseconds. All packets
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# arriving in the given interval are delayed until the end of the
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# interval.
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#
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# Since: 2.5
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##
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{ 'struct': 'FilterBufferProperties',
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'base': 'NetfilterProperties',
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'data': { 'interval': 'uint32' } }
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##
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# @FilterDumpProperties:
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#
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# Properties for filter-dump objects.
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#
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# @file: the filename where the dumped packets should be stored
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#
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# @maxlen: maximum number of bytes in a packet that are stored
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# (default: 65536)
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#
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# Since: 2.5
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##
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{ 'struct': 'FilterDumpProperties',
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'base': 'NetfilterProperties',
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'data': { 'file': 'str',
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'*maxlen': 'uint32' } }
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##
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# @FilterMirrorProperties:
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#
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# Properties for filter-mirror objects.
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#
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# @outdev: the name of a character device backend to which all
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# incoming packets are mirrored
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#
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# @vnet_hdr_support: if true, vnet header support is enabled
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# (default: false)
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#
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# Since: 2.6
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##
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{ 'struct': 'FilterMirrorProperties',
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'base': 'NetfilterProperties',
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'data': { 'outdev': 'str',
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'*vnet_hdr_support': 'bool' } }
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##
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# @FilterRedirectorProperties:
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#
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# Properties for filter-redirector objects.
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#
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# At least one of @indev or @outdev must be present. If both are
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# present, they must not refer to the same character device backend.
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#
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# @indev: the name of a character device backend from which packets
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# are received and redirected to the filtered network device
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#
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# @outdev: the name of a character device backend to which all
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# incoming packets are redirected
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#
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# @vnet_hdr_support: if true, vnet header support is enabled
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# (default: false)
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|
#
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|
# Since: 2.6
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##
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{ 'struct': 'FilterRedirectorProperties',
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'base': 'NetfilterProperties',
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'data': { '*indev': 'str',
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'*outdev': 'str',
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'*vnet_hdr_support': 'bool' } }
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|
|
##
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|
# @FilterRewriterProperties:
|
|
#
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# Properties for filter-rewriter objects.
|
|
#
|
|
# @vnet_hdr_support: if true, vnet header support is enabled
|
|
# (default: false)
|
|
#
|
|
# Since: 2.8
|
|
##
|
|
{ 'struct': 'FilterRewriterProperties',
|
|
'base': 'NetfilterProperties',
|
|
'data': { '*vnet_hdr_support': 'bool' } }
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|
|
|
##
|
|
# @InputBarrierProperties:
|
|
#
|
|
# Properties for input-barrier objects.
|
|
#
|
|
# @name: the screen name as declared in the screens section of
|
|
# barrier.conf
|
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#
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|
# @server: hostname of the Barrier server (default: "localhost")
|
|
#
|
|
# @port: TCP port of the Barrier server (default: "24800")
|
|
#
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|
# @x-origin: x coordinate of the leftmost pixel on the guest screen
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# (default: "0")
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|
#
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|
# @y-origin: y coordinate of the topmost pixel on the guest screen
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|
# (default: "0")
|
|
#
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|
# @width: the width of secondary screen in pixels (default: "1920")
|
|
#
|
|
# @height: the height of secondary screen in pixels (default: "1080")
|
|
#
|
|
# Since: 4.2
|
|
##
|
|
{ 'struct': 'InputBarrierProperties',
|
|
'data': { 'name': 'str',
|
|
'*server': 'str',
|
|
'*port': 'str',
|
|
'*x-origin': 'str',
|
|
'*y-origin': 'str',
|
|
'*width': 'str',
|
|
'*height': 'str' } }
|
|
|
|
##
|
|
# @InputLinuxProperties:
|
|
#
|
|
# Properties for input-linux objects.
|
|
#
|
|
# @evdev: the path of the host evdev device to use
|
|
#
|
|
# @grab_all: if true, grab is toggled for all devices (e.g. both
|
|
# keyboard and mouse) instead of just one device (default: false)
|
|
#
|
|
# @repeat: enables auto-repeat events (default: false)
|
|
#
|
|
# @grab-toggle: the key or key combination that toggles device grab
|
|
# (default: ctrl-ctrl)
|
|
#
|
|
# Since: 2.6
|
|
##
|
|
{ 'struct': 'InputLinuxProperties',
|
|
'data': { 'evdev': 'str',
|
|
'*grab_all': 'bool',
|
|
'*repeat': 'bool',
|
|
'*grab-toggle': 'GrabToggleKeys' } }
|
|
|
|
##
|
|
# @EventLoopBaseProperties:
|
|
#
|
|
# Common properties for event loops
|
|
#
|
|
# @aio-max-batch: maximum number of requests in a batch for the AIO
|
|
# engine, 0 means that the engine will use its default.
|
|
# (default: 0)
|
|
#
|
|
# @thread-pool-min: minimum number of threads reserved in the thread
|
|
# pool (default:0)
|
|
#
|
|
# @thread-pool-max: maximum number of threads the thread pool can
|
|
# contain (default:64)
|
|
#
|
|
# Since: 7.1
|
|
##
|
|
{ 'struct': 'EventLoopBaseProperties',
|
|
'data': { '*aio-max-batch': 'int',
|
|
'*thread-pool-min': 'int',
|
|
'*thread-pool-max': 'int' } }
|
|
|
|
##
|
|
# @IothreadProperties:
|
|
#
|
|
# Properties for iothread objects.
|
|
#
|
|
# @poll-max-ns: the maximum number of nanoseconds to busy wait for
|
|
# events. 0 means polling is disabled (default: 32768 on POSIX
|
|
# hosts, 0 otherwise)
|
|
#
|
|
# @poll-grow: the multiplier used to increase the polling time when
|
|
# the algorithm detects it is missing events due to not polling
|
|
# long enough. 0 selects a default behaviour (default: 0)
|
|
#
|
|
# @poll-shrink: the divisor used to decrease the polling time when the
|
|
# algorithm detects it is spending too long polling without
|
|
# encountering events. 0 selects a default behaviour (default: 0)
|
|
#
|
|
# The @aio-max-batch option is available since 6.1.
|
|
#
|
|
# Since: 2.0
|
|
##
|
|
{ 'struct': 'IothreadProperties',
|
|
'base': 'EventLoopBaseProperties',
|
|
'data': { '*poll-max-ns': 'int',
|
|
'*poll-grow': 'int',
|
|
'*poll-shrink': 'int' } }
|
|
|
|
##
|
|
# @MainLoopProperties:
|
|
#
|
|
# Properties for the main-loop object.
|
|
#
|
|
# Since: 7.1
|
|
##
|
|
{ 'struct': 'MainLoopProperties',
|
|
'base': 'EventLoopBaseProperties',
|
|
'data': {} }
|
|
|
|
##
|
|
# @MemoryBackendProperties:
|
|
#
|
|
# Properties for objects of classes derived from memory-backend.
|
|
#
|
|
# @merge: if true, mark the memory as mergeable (default depends on
|
|
# the machine type)
|
|
#
|
|
# @dump: if true, include the memory in core dumps (default depends on
|
|
# the machine type)
|
|
#
|
|
# @host-nodes: the list of NUMA host nodes to bind the memory to
|
|
#
|
|
# @policy: the NUMA policy (default: 'default')
|
|
#
|
|
# @prealloc: if true, preallocate memory (default: false)
|
|
#
|
|
# @prealloc-threads: number of CPU threads to use for prealloc
|
|
# (default: 1)
|
|
#
|
|
# @prealloc-context: thread context to use for creation of
|
|
# preallocation threads (default: none) (since 7.2)
|
|
#
|
|
# @share: if false, the memory is private to QEMU; if true, it is
|
|
# shared (default false for backends memory-backend-file and
|
|
# memory-backend-ram, true for backends memory-backend-epc,
|
|
# memory-backend-memfd, and memory-backend-shm)
|
|
#
|
|
# @reserve: if true, reserve swap space (or huge pages) if applicable
|
|
# (default: true) (since 6.1)
|
|
#
|
|
# @size: size of the memory region in bytes
|
|
#
|
|
# @x-use-canonical-path-for-ramblock-id: if true, the canonical path
|
|
# is used for ramblock-id. Disable this for 4.0 machine types or
|
|
# older to allow migration with newer QEMU versions.
|
|
# (default: false generally, but true for machine types <= 4.0)
|
|
#
|
|
# .. note:: prealloc=true and reserve=false cannot be set at the same
|
|
# time. With reserve=true, the behavior depends on the operating
|
|
# system: for example, Linux will not reserve swap space for shared
|
|
# file mappings -- "not applicable". In contrast, reserve=false will
|
|
# bail out if it cannot be configured accordingly.
|
|
#
|
|
# Since: 2.1
|
|
##
|
|
{ 'struct': 'MemoryBackendProperties',
|
|
'data': { '*dump': 'bool',
|
|
'*host-nodes': ['uint16'],
|
|
'*merge': 'bool',
|
|
'*policy': 'HostMemPolicy',
|
|
'*prealloc': 'bool',
|
|
'*prealloc-threads': 'uint32',
|
|
'*prealloc-context': 'str',
|
|
'*share': 'bool',
|
|
'*reserve': 'bool',
|
|
'size': 'size',
|
|
'*x-use-canonical-path-for-ramblock-id': 'bool' } }
|
|
|
|
##
|
|
# @MemoryBackendFileProperties:
|
|
#
|
|
# Properties for memory-backend-file objects.
|
|
#
|
|
# @align: the base address alignment when QEMU mmap(2)s @mem-path.
|
|
# Some backend stores specified by @mem-path require an alignment
|
|
# different than the default one used by QEMU, e.g. the device DAX
|
|
# /dev/dax0.0 requires 2M alignment rather than 4K. In such cases,
|
|
# users can specify the required alignment via this option. 0
|
|
# selects a default alignment (currently the page size).
|
|
# (default: 0)
|
|
#
|
|
# @offset: the offset into the target file that the region starts at.
|
|
# You can use this option to back multiple regions with a single
|
|
# file. Must be a multiple of the page size.
|
|
# (default: 0) (since 8.1)
|
|
#
|
|
# @discard-data: if true, the file contents can be destroyed when QEMU
|
|
# exits, to avoid unnecessarily flushing data to the backing file.
|
|
# Note that @discard-data is only an optimization, and QEMU might
|
|
# not discard file contents if it aborts unexpectedly or is
|
|
# terminated using SIGKILL. (default: false)
|
|
#
|
|
# @mem-path: the path to either a shared memory or huge page
|
|
# filesystem mount
|
|
#
|
|
# @pmem: specifies whether the backing file specified by @mem-path is
|
|
# in host persistent memory that can be accessed using the SNIA
|
|
# NVM programming model (e.g. Intel NVDIMM).
|
|
#
|
|
# @readonly: if true, the backing file is opened read-only; if false,
|
|
# it is opened read-write. (default: false)
|
|
#
|
|
# @rom: whether to create Read Only Memory (ROM) that cannot be
|
|
# modified by the VM. Any write attempts to such ROM will be
|
|
# denied. Most use cases want writable RAM instead of ROM.
|
|
# However, selected use cases, like R/O NVDIMMs, can benefit from
|
|
# ROM. If set to 'on', create ROM; if set to 'off', create
|
|
# writable RAM; if set to 'auto', the value of the @readonly
|
|
# property is used. This property is primarily helpful when we
|
|
# want to have proper RAM in configurations that would
|
|
# traditionally create ROM before this property was introduced: VM
|
|
# templating, where we want to open a file readonly (@readonly set
|
|
# to true) and mark the memory to be private for QEMU (@share set
|
|
# to false). For this use case, we need writable RAM instead of
|
|
# ROM, and want to set this property to 'off'. (default: auto,
|
|
# since 8.2)
|
|
#
|
|
# Since: 2.1
|
|
##
|
|
{ 'struct': 'MemoryBackendFileProperties',
|
|
'base': 'MemoryBackendProperties',
|
|
'data': { '*align': 'size',
|
|
'*offset': 'size',
|
|
'*discard-data': 'bool',
|
|
'mem-path': 'str',
|
|
'*pmem': { 'type': 'bool', 'if': 'CONFIG_LIBPMEM' },
|
|
'*readonly': 'bool',
|
|
'*rom': 'OnOffAuto' } }
|
|
|
|
##
|
|
# @MemoryBackendMemfdProperties:
|
|
#
|
|
# Properties for memory-backend-memfd objects.
|
|
#
|
|
# @hugetlb: if true, the file to be created resides in the hugetlbfs
|
|
# filesystem (default: false)
|
|
#
|
|
# @hugetlbsize: the hugetlb page size on systems that support multiple
|
|
# hugetlb page sizes (it must be a power of 2 value supported by
|
|
# the system). 0 selects a default page size. This option is
|
|
# ignored if @hugetlb is false. (default: 0)
|
|
#
|
|
# @seal: if true, create a sealed-file, which will block further
|
|
# resizing of the memory (default: true)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'MemoryBackendMemfdProperties',
|
|
'base': 'MemoryBackendProperties',
|
|
'data': { '*hugetlb': 'bool',
|
|
'*hugetlbsize': 'size',
|
|
'*seal': 'bool' } }
|
|
|
|
##
|
|
# @MemoryBackendShmProperties:
|
|
#
|
|
# Properties for memory-backend-shm objects.
|
|
#
|
|
# This memory backend supports only shared memory, which is the
|
|
# default.
|
|
#
|
|
# Since: 9.1
|
|
##
|
|
{ 'struct': 'MemoryBackendShmProperties',
|
|
'base': 'MemoryBackendProperties',
|
|
'data': { },
|
|
'if': 'CONFIG_POSIX' }
|
|
|
|
##
|
|
# @MemoryBackendEpcProperties:
|
|
#
|
|
# Properties for memory-backend-epc objects.
|
|
#
|
|
# The @merge boolean option is false by default with epc
|
|
#
|
|
# The @dump boolean option is false by default with epc
|
|
#
|
|
# Since: 6.2
|
|
##
|
|
{ 'struct': 'MemoryBackendEpcProperties',
|
|
'base': 'MemoryBackendProperties',
|
|
'data': {} }
|
|
|
|
##
|
|
# @PrManagerHelperProperties:
|
|
#
|
|
# Properties for pr-manager-helper objects.
|
|
#
|
|
# @path: the path to a Unix domain socket for connecting to the
|
|
# external helper
|
|
#
|
|
# Since: 2.11
|
|
##
|
|
{ 'struct': 'PrManagerHelperProperties',
|
|
'data': { 'path': 'str' } }
|
|
|
|
##
|
|
# @QtestProperties:
|
|
#
|
|
# Properties for qtest objects.
|
|
#
|
|
# @chardev: the chardev to be used to receive qtest commands on.
|
|
#
|
|
# @log: the path to a log file
|
|
#
|
|
# Since: 6.0
|
|
##
|
|
{ 'struct': 'QtestProperties',
|
|
'data': { 'chardev': 'str',
|
|
'*log': 'str' } }
|
|
|
|
##
|
|
# @RemoteObjectProperties:
|
|
#
|
|
# Properties for x-remote-object objects.
|
|
#
|
|
# @fd: file descriptor name previously passed via 'getfd' command
|
|
#
|
|
# @devid: the id of the device to be associated with the file
|
|
# descriptor
|
|
#
|
|
# Since: 6.0
|
|
##
|
|
{ 'struct': 'RemoteObjectProperties',
|
|
'data': { 'fd': 'str', 'devid': 'str' } }
|
|
|
|
##
|
|
# @VfioUserServerProperties:
|
|
#
|
|
# Properties for x-vfio-user-server objects.
|
|
#
|
|
# @socket: socket to be used by the libvfio-user library
|
|
#
|
|
# @device: the ID of the device to be emulated at the server
|
|
#
|
|
# Since: 7.1
|
|
##
|
|
{ 'struct': 'VfioUserServerProperties',
|
|
'data': { 'socket': 'SocketAddress', 'device': 'str' } }
|
|
|
|
##
|
|
# @IOMMUFDProperties:
|
|
#
|
|
# Properties for iommufd objects.
|
|
#
|
|
# @fd: file descriptor name previously passed via 'getfd' command,
|
|
# which represents a pre-opened /dev/iommu. This allows the
|
|
# iommufd object to be shared across several subsystems (VFIO,
|
|
# VDPA, ...), and the file descriptor to be shared with other
|
|
# process, e.g. DPDK. (default: QEMU opens /dev/iommu by itself)
|
|
#
|
|
# Since: 9.0
|
|
##
|
|
{ 'struct': 'IOMMUFDProperties',
|
|
'data': { '*fd': 'str' } }
|
|
|
|
##
|
|
# @AcpiGenericInitiatorProperties:
|
|
#
|
|
# Properties for acpi-generic-initiator objects.
|
|
#
|
|
# @pci-dev: PCI device ID to be associated with the node
|
|
#
|
|
# @node: NUMA node associated with the PCI device
|
|
#
|
|
# Since: 9.0
|
|
##
|
|
{ 'struct': 'AcpiGenericInitiatorProperties',
|
|
'data': { 'pci-dev': 'str',
|
|
'node': 'uint32' } }
|
|
|
|
##
|
|
# @RngProperties:
|
|
#
|
|
# Properties for objects of classes derived from rng.
|
|
#
|
|
# @opened: if true, the device is opened immediately when applying
|
|
# this option and will probably fail when processing the next
|
|
# option. Don't use; only provided for compatibility.
|
|
# (default: false)
|
|
#
|
|
# Features:
|
|
#
|
|
# @deprecated: Member @opened is deprecated. Setting true doesn't
|
|
# make sense, and false is already the default.
|
|
#
|
|
# Since: 1.3
|
|
##
|
|
{ 'struct': 'RngProperties',
|
|
'data': { '*opened': { 'type': 'bool', 'features': ['deprecated'] } } }
|
|
|
|
##
|
|
# @RngEgdProperties:
|
|
#
|
|
# Properties for rng-egd objects.
|
|
#
|
|
# @chardev: the name of a character device backend that provides the
|
|
# connection to the RNG daemon
|
|
#
|
|
# Since: 1.3
|
|
##
|
|
{ 'struct': 'RngEgdProperties',
|
|
'base': 'RngProperties',
|
|
'data': { 'chardev': 'str' } }
|
|
|
|
##
|
|
# @RngRandomProperties:
|
|
#
|
|
# Properties for rng-random objects.
|
|
#
|
|
# @filename: the filename of the device on the host to obtain entropy
|
|
# from (default: "/dev/urandom")
|
|
#
|
|
# Since: 1.3
|
|
##
|
|
{ 'struct': 'RngRandomProperties',
|
|
'base': 'RngProperties',
|
|
'data': { '*filename': 'str' } }
|
|
|
|
##
|
|
# @SevCommonProperties:
|
|
#
|
|
# Properties common to objects that are derivatives of sev-common.
|
|
#
|
|
# @sev-device: SEV device to use (default: "/dev/sev")
|
|
#
|
|
# @cbitpos: C-bit location in page table entry (default: 0)
|
|
#
|
|
# @reduced-phys-bits: number of bits in physical addresses that become
|
|
# unavailable when SEV is enabled
|
|
#
|
|
# @kernel-hashes: if true, add hashes of kernel/initrd/cmdline to a
|
|
# designated guest firmware page for measured boot with -kernel
|
|
# (default: false) (since 6.2)
|
|
#
|
|
# Since: 9.1
|
|
##
|
|
{ 'struct': 'SevCommonProperties',
|
|
'data': { '*sev-device': 'str',
|
|
'*cbitpos': 'uint32',
|
|
'reduced-phys-bits': 'uint32',
|
|
'*kernel-hashes': 'bool' } }
|
|
|
|
##
|
|
# @SevGuestProperties:
|
|
#
|
|
# Properties for sev-guest objects.
|
|
#
|
|
# @dh-cert-file: guest owners DH certificate (encoded with base64)
|
|
#
|
|
# @session-file: guest owners session parameters (encoded with base64)
|
|
#
|
|
# @policy: SEV policy value (default: 0x1)
|
|
#
|
|
# @handle: SEV firmware handle (default: 0)
|
|
#
|
|
# @legacy-vm-type: Use legacy KVM_SEV_INIT KVM interface for creating the VM.
|
|
# The newer KVM_SEV_INIT2 interface syncs additional vCPU
|
|
# state when initializing the VMSA structures, which will
|
|
# result in a different guest measurement. Set this to
|
|
# maintain compatibility with older QEMU or kernel versions
|
|
# that rely on legacy KVM_SEV_INIT behavior.
|
|
# (default: false) (since 9.1)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'SevGuestProperties',
|
|
'base': 'SevCommonProperties',
|
|
'data': { '*dh-cert-file': 'str',
|
|
'*session-file': 'str',
|
|
'*policy': 'uint32',
|
|
'*handle': 'uint32',
|
|
'*legacy-vm-type': 'bool' } }
|
|
|
|
##
|
|
# @SevSnpGuestProperties:
|
|
#
|
|
# Properties for sev-snp-guest objects. Most of these are direct
|
|
# arguments for the KVM_SNP_* interfaces documented in the Linux
|
|
# kernel source under
|
|
# Documentation/arch/x86/amd-memory-encryption.rst, which are in turn
|
|
# closely coupled with the SNP_INIT/SNP_LAUNCH_* firmware commands
|
|
# documented in the SEV-SNP Firmware ABI Specification (Rev 0.9).
|
|
#
|
|
# More usage information is also available in the QEMU source tree
|
|
# under docs/amd-memory-encryption.
|
|
#
|
|
# @policy: the 'POLICY' parameter to the SNP_LAUNCH_START command, as
|
|
# defined in the SEV-SNP firmware ABI (default: 0x30000)
|
|
#
|
|
# @guest-visible-workarounds: 16-byte, base64-encoded blob to report
|
|
# hypervisor-defined workarounds, corresponding to the 'GOSVW'
|
|
# parameter of the SNP_LAUNCH_START command defined in the SEV-SNP
|
|
# firmware ABI (default: all-zero)
|
|
#
|
|
# @id-block: 96-byte, base64-encoded blob to provide the 'ID Block'
|
|
# structure for the SNP_LAUNCH_FINISH command defined in the
|
|
# SEV-SNP firmware ABI (default: all-zero)
|
|
#
|
|
# @id-auth: 4096-byte, base64-encoded blob to provide the 'ID
|
|
# Authentication Information Structure' for the SNP_LAUNCH_FINISH
|
|
# command defined in the SEV-SNP firmware ABI (default: all-zero)
|
|
#
|
|
# @author-key-enabled: true if 'id-auth' blob contains the 'AUTHOR_KEY'
|
|
# field defined SEV-SNP firmware ABI (default: false)
|
|
#
|
|
# @host-data: 32-byte, base64-encoded, user-defined blob to provide to
|
|
# the guest, as documented for the 'HOST_DATA' parameter of the
|
|
# SNP_LAUNCH_FINISH command in the SEV-SNP firmware ABI (default:
|
|
# all-zero)
|
|
#
|
|
# @vcek-disabled: Guests are by default allowed to choose between VLEK
|
|
# (Versioned Loaded Endorsement Key) or VCEK (Versioned Chip
|
|
# Endorsement Key) when requesting attestation reports from
|
|
# firmware. Set this to true to disable the use of VCEK.
|
|
# (default: false) (since: 9.1)
|
|
#
|
|
# Since: 9.1
|
|
##
|
|
{ 'struct': 'SevSnpGuestProperties',
|
|
'base': 'SevCommonProperties',
|
|
'data': {
|
|
'*policy': 'uint64',
|
|
'*guest-visible-workarounds': 'str',
|
|
'*id-block': 'str',
|
|
'*id-auth': 'str',
|
|
'*author-key-enabled': 'bool',
|
|
'*host-data': 'str',
|
|
'*vcek-disabled': 'bool' } }
|
|
|
|
##
|
|
# @ThreadContextProperties:
|
|
#
|
|
# Properties for thread context objects.
|
|
#
|
|
# @cpu-affinity: the list of host CPU numbers used as CPU affinity for
|
|
# all threads created in the thread context (default: QEMU main
|
|
# thread CPU affinity)
|
|
#
|
|
# @node-affinity: the list of host node numbers that will be resolved
|
|
# to a list of host CPU numbers used as CPU affinity. This is a
|
|
# shortcut for specifying the list of host CPU numbers belonging
|
|
# to the host nodes manually by setting @cpu-affinity.
|
|
# (default: QEMU main thread affinity)
|
|
#
|
|
# Since: 7.2
|
|
##
|
|
{ 'struct': 'ThreadContextProperties',
|
|
'data': { '*cpu-affinity': ['uint16'],
|
|
'*node-affinity': ['uint16'] } }
|
|
|
|
|
|
##
|
|
# @ObjectType:
|
|
#
|
|
# Features:
|
|
#
|
|
# @unstable: Member @x-remote-object is experimental.
|
|
#
|
|
# Since: 6.0
|
|
##
|
|
{ 'enum': 'ObjectType',
|
|
'data': [
|
|
'acpi-generic-initiator',
|
|
'authz-list',
|
|
'authz-listfile',
|
|
'authz-pam',
|
|
'authz-simple',
|
|
'can-bus',
|
|
{ 'name': 'can-host-socketcan',
|
|
'if': 'CONFIG_LINUX' },
|
|
'colo-compare',
|
|
'cryptodev-backend',
|
|
'cryptodev-backend-builtin',
|
|
'cryptodev-backend-lkcf',
|
|
{ 'name': 'cryptodev-vhost-user',
|
|
'if': 'CONFIG_VHOST_CRYPTO' },
|
|
'dbus-vmstate',
|
|
'filter-buffer',
|
|
'filter-dump',
|
|
'filter-mirror',
|
|
'filter-redirector',
|
|
'filter-replay',
|
|
'filter-rewriter',
|
|
'input-barrier',
|
|
{ 'name': 'input-linux',
|
|
'if': 'CONFIG_LINUX' },
|
|
'iommufd',
|
|
'iothread',
|
|
'main-loop',
|
|
{ 'name': 'memory-backend-epc',
|
|
'if': 'CONFIG_LINUX' },
|
|
'memory-backend-file',
|
|
{ 'name': 'memory-backend-memfd',
|
|
'if': 'CONFIG_LINUX' },
|
|
'memory-backend-ram',
|
|
{ 'name': 'memory-backend-shm',
|
|
'if': 'CONFIG_POSIX' },
|
|
'pef-guest',
|
|
{ 'name': 'pr-manager-helper',
|
|
'if': 'CONFIG_LINUX' },
|
|
'qtest',
|
|
'rng-builtin',
|
|
'rng-egd',
|
|
{ 'name': 'rng-random',
|
|
'if': 'CONFIG_POSIX' },
|
|
'secret',
|
|
{ 'name': 'secret_keyring',
|
|
'if': 'CONFIG_SECRET_KEYRING' },
|
|
'sev-guest',
|
|
'sev-snp-guest',
|
|
'thread-context',
|
|
's390-pv-guest',
|
|
'throttle-group',
|
|
'tls-creds-anon',
|
|
'tls-creds-psk',
|
|
'tls-creds-x509',
|
|
'tls-cipher-suites',
|
|
{ 'name': 'x-remote-object', 'features': [ 'unstable' ] },
|
|
{ 'name': 'x-vfio-user-server', 'features': [ 'unstable' ] }
|
|
] }
|
|
|
|
##
|
|
# @ObjectOptions:
|
|
#
|
|
# Describes the options of a user creatable QOM object.
|
|
#
|
|
# @qom-type: the class name for the object to be created
|
|
#
|
|
# @id: the name of the new object
|
|
#
|
|
# Since: 6.0
|
|
##
|
|
{ 'union': 'ObjectOptions',
|
|
'base': { 'qom-type': 'ObjectType',
|
|
'id': 'str' },
|
|
'discriminator': 'qom-type',
|
|
'data': {
|
|
'acpi-generic-initiator': 'AcpiGenericInitiatorProperties',
|
|
'authz-list': 'AuthZListProperties',
|
|
'authz-listfile': 'AuthZListFileProperties',
|
|
'authz-pam': 'AuthZPAMProperties',
|
|
'authz-simple': 'AuthZSimpleProperties',
|
|
'can-host-socketcan': { 'type': 'CanHostSocketcanProperties',
|
|
'if': 'CONFIG_LINUX' },
|
|
'colo-compare': 'ColoCompareProperties',
|
|
'cryptodev-backend': 'CryptodevBackendProperties',
|
|
'cryptodev-backend-builtin': 'CryptodevBackendProperties',
|
|
'cryptodev-backend-lkcf': 'CryptodevBackendProperties',
|
|
'cryptodev-vhost-user': { 'type': 'CryptodevVhostUserProperties',
|
|
'if': 'CONFIG_VHOST_CRYPTO' },
|
|
'dbus-vmstate': 'DBusVMStateProperties',
|
|
'filter-buffer': 'FilterBufferProperties',
|
|
'filter-dump': 'FilterDumpProperties',
|
|
'filter-mirror': 'FilterMirrorProperties',
|
|
'filter-redirector': 'FilterRedirectorProperties',
|
|
'filter-replay': 'NetfilterProperties',
|
|
'filter-rewriter': 'FilterRewriterProperties',
|
|
'input-barrier': 'InputBarrierProperties',
|
|
'input-linux': { 'type': 'InputLinuxProperties',
|
|
'if': 'CONFIG_LINUX' },
|
|
'iommufd': 'IOMMUFDProperties',
|
|
'iothread': 'IothreadProperties',
|
|
'main-loop': 'MainLoopProperties',
|
|
'memory-backend-epc': { 'type': 'MemoryBackendEpcProperties',
|
|
'if': 'CONFIG_LINUX' },
|
|
'memory-backend-file': 'MemoryBackendFileProperties',
|
|
'memory-backend-memfd': { 'type': 'MemoryBackendMemfdProperties',
|
|
'if': 'CONFIG_LINUX' },
|
|
'memory-backend-ram': 'MemoryBackendProperties',
|
|
'memory-backend-shm': { 'type': 'MemoryBackendShmProperties',
|
|
'if': 'CONFIG_POSIX' },
|
|
'pr-manager-helper': { 'type': 'PrManagerHelperProperties',
|
|
'if': 'CONFIG_LINUX' },
|
|
'qtest': 'QtestProperties',
|
|
'rng-builtin': 'RngProperties',
|
|
'rng-egd': 'RngEgdProperties',
|
|
'rng-random': { 'type': 'RngRandomProperties',
|
|
'if': 'CONFIG_POSIX' },
|
|
'secret': 'SecretProperties',
|
|
'secret_keyring': { 'type': 'SecretKeyringProperties',
|
|
'if': 'CONFIG_SECRET_KEYRING' },
|
|
'sev-guest': 'SevGuestProperties',
|
|
'sev-snp-guest': 'SevSnpGuestProperties',
|
|
'thread-context': 'ThreadContextProperties',
|
|
'throttle-group': 'ThrottleGroupProperties',
|
|
'tls-creds-anon': 'TlsCredsAnonProperties',
|
|
'tls-creds-psk': 'TlsCredsPskProperties',
|
|
'tls-creds-x509': 'TlsCredsX509Properties',
|
|
'tls-cipher-suites': 'TlsCredsProperties',
|
|
'x-remote-object': 'RemoteObjectProperties',
|
|
'x-vfio-user-server': 'VfioUserServerProperties'
|
|
} }
|
|
|
|
##
|
|
# @object-add:
|
|
#
|
|
# Create a QOM object.
|
|
#
|
|
# Errors:
|
|
# - Error if @qom-type is not a valid class name
|
|
#
|
|
# Since: 2.0
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "object-add",
|
|
# "arguments": { "qom-type": "rng-random", "id": "rng1",
|
|
# "filename": "/dev/hwrng" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'object-add', 'data': 'ObjectOptions', 'boxed': true,
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @object-del:
|
|
#
|
|
# Remove a QOM object.
|
|
#
|
|
# @id: the name of the QOM object to remove
|
|
#
|
|
# Errors:
|
|
# - Error if @id is not a valid id for a QOM object
|
|
#
|
|
# Since: 2.0
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "object-del", "arguments": { "id": "rng1" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'object-del', 'data': {'id': 'str'},
|
|
'allow-preconfig': true }
|