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i386: Introduce tdx-guest object

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Introduce tdx-guest object which inherits X86_CONFIDENTIAL_GUEST,
and will be used to create TDX VMs (TDs) by

  qemu -machine ...,confidential-guest-support=tdx0	\
       -object tdx-guest,id=tdx0

It has one QAPI member 'attributes' defined, which allows user to set
TD's attributes directly.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250508150002.689633-3-xiaoyao.li@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Xiaoyao Li 2025-05-08 10:59:08 -04:00 • committed by Paolo Bonzini
parent 5150004ccf
commit 756e12e791
6 changed files with 87 additions and 0 deletions
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15
qapi/qom.json
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@ -1047,6 +1047,19 @@
'*host-data': 'str',
'*vcek-disabled': 'bool' } }
##
# @TdxGuestProperties:
#
# Properties for tdx-guest objects.
#
# @attributes: The 'attributes' of a TD guest that is passed to
# KVM_TDX_INIT_VM
#
# Since: 10.1
##
{ 'struct': 'TdxGuestProperties',
'data': { '*attributes': 'uint64' } }
##
# @ThreadContextProperties:
#
@ -1132,6 +1145,7 @@
'sev-snp-guest',
'thread-context',
's390-pv-guest',
'tdx-guest',
'throttle-group',
'tls-creds-anon',
'tls-creds-psk',
@ -1204,6 +1218,7 @@
'if': 'CONFIG_SECRET_KEYRING' },
'sev-guest': 'SevGuestProperties',
'sev-snp-guest': 'SevSnpGuestProperties',
'tdx-guest': 'TdxGuestProperties',
'thread-context': 'ThreadContextProperties',
'throttle-group': 'ThrottleGroupProperties',
'tls-creds-anon': 'TlsCredsAnonProperties',