qemu/qapi/tpm.json
Markus Armbruster 39dc3e4a4e qapi: Convert simple union TpmTypeOptions to flat one
Simple unions predate flat unions.  Having both complicates the QAPI
schema language and the QAPI generator.  We haven't been using simple
unions in new code for a long time, because they are less flexible and
somewhat awkward on the wire.

To prepare for their removal, convert simple union TpmTypeOptions to
an equivalent flat one, with existing enum TpmType replacing implicit
enum TpmTypeOptionsKind.  Adds some boilerplate to the schema, which
is a bit ugly, but a lot easier to maintain than the simple union
feature.

Cc: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210917143134.412106-6-armbru@redhat.com>
[Indentation tidied up]
2021-09-27 08:22:25 +02:00

186 lines
3.5 KiB
Python

# -*- Mode: Python -*-
# vim: filetype=python
#
##
# = TPM (trusted platform module) devices
##
##
# @TpmModel:
#
# An enumeration of TPM models
#
# @tpm-tis: TPM TIS model
# @tpm-crb: TPM CRB model (since 2.12)
# @tpm-spapr: TPM SPAPR model (since 5.0)
#
# Since: 1.5
##
{ 'enum': 'TpmModel', 'data': [ 'tpm-tis', 'tpm-crb', 'tpm-spapr' ],
'if': 'CONFIG_TPM' }
##
# @query-tpm-models:
#
# Return a list of supported TPM models
#
# Returns: a list of TpmModel
#
# Since: 1.5
#
# Example:
#
# -> { "execute": "query-tpm-models" }
# <- { "return": [ "tpm-tis", "tpm-crb", "tpm-spapr" ] }
#
##
{ 'command': 'query-tpm-models', 'returns': ['TpmModel'],
'if': 'CONFIG_TPM' }
##
# @TpmType:
#
# An enumeration of TPM types
#
# @passthrough: TPM passthrough type
# @emulator: Software Emulator TPM type
# Since: 2.11
#
# Since: 1.5
##
{ 'enum': 'TpmType', 'data': [ 'passthrough', 'emulator' ],
'if': 'CONFIG_TPM' }
##
# @query-tpm-types:
#
# Return a list of supported TPM types
#
# Returns: a list of TpmType
#
# Since: 1.5
#
# Example:
#
# -> { "execute": "query-tpm-types" }
# <- { "return": [ "passthrough", "emulator" ] }
#
##
{ 'command': 'query-tpm-types', 'returns': ['TpmType'],
'if': 'CONFIG_TPM' }
##
# @TPMPassthroughOptions:
#
# Information about the TPM passthrough type
#
# @path: string describing the path used for accessing the TPM device
#
# @cancel-path: string showing the TPM's sysfs cancel file
# for cancellation of TPM commands while they are executing
#
# Since: 1.5
##
{ 'struct': 'TPMPassthroughOptions',
'data': { '*path': 'str',
'*cancel-path': 'str' },
'if': 'CONFIG_TPM' }
##
# @TPMEmulatorOptions:
#
# Information about the TPM emulator type
#
# @chardev: Name of a unix socket chardev
#
# Since: 2.11
##
{ 'struct': 'TPMEmulatorOptions', 'data': { 'chardev' : 'str' },
'if': 'CONFIG_TPM' }
##
# @TPMPassthroughOptionsWrapper:
#
# Since: 1.5
##
{ 'struct': 'TPMPassthroughOptionsWrapper',
'data': { 'data': 'TPMPassthroughOptions' },
'if': 'CONFIG_TPM' }
##
# @TPMEmulatorOptionsWrapper:
#
# Since: 2.11
##
{ 'struct': 'TPMEmulatorOptionsWrapper',
'data': { 'data': 'TPMEmulatorOptions' },
'if': 'CONFIG_TPM' }
##
# @TpmTypeOptions:
#
# A union referencing different TPM backend types' configuration options
#
# @type: - 'passthrough' The configuration options for the TPM passthrough type
# - 'emulator' The configuration options for TPM emulator backend type
#
# Since: 1.5
##
{ 'union': 'TpmTypeOptions',
'base': { 'type': 'TpmType' },
'discriminator': 'type',
'data': { 'passthrough' : 'TPMPassthroughOptionsWrapper',
'emulator': 'TPMEmulatorOptionsWrapper' },
'if': 'CONFIG_TPM' }
##
# @TPMInfo:
#
# Information about the TPM
#
# @id: The Id of the TPM
#
# @model: The TPM frontend model
#
# @options: The TPM (backend) type configuration options
#
# Since: 1.5
##
{ 'struct': 'TPMInfo',
'data': {'id': 'str',
'model': 'TpmModel',
'options': 'TpmTypeOptions' },
'if': 'CONFIG_TPM' }
##
# @query-tpm:
#
# Return information about the TPM device
#
# Returns: @TPMInfo on success
#
# Since: 1.5
#
# Example:
#
# -> { "execute": "query-tpm" }
# <- { "return":
# [
# { "model": "tpm-tis",
# "options":
# { "type": "passthrough",
# "data":
# { "cancel-path": "/sys/class/misc/tpm0/device/cancel",
# "path": "/dev/tpm0"
# }
# },
# "id": "tpm0"
# }
# ]
# }
#
##
{ 'command': 'query-tpm', 'returns': ['TPMInfo'],
'if': 'CONFIG_TPM' }