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i386/tdx: Wire TDX_REPORT_FATAL_ERROR with GuestPanic facility

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Integrate TDX's TDX_REPORT_FATAL_ERROR into QEMU GuestPanic facility

Originated-from: Isaku Yamahata <isaku.yamahata@intel.com>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250508150002.689633-30-xiaoyao.li@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Xiaoyao Li 2025-05-08 10:59:35 -04:00 • committed by Paolo Bonzini
parent 98dbfd6849
commit 6e250463b0
3 changed files with 118 additions and 3 deletions
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31
qapi/run-state.json
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@ -501,10 +501,12 @@
#
# @s390: s390 guest panic information type (Since: 2.12)
#
# @tdx: tdx guest panic information type (Since: 10.1)
#
# Since: 2.9
##
{ 'enum': 'GuestPanicInformationType',
'data': [ 'hyper-v', 's390' ] }
'data': [ 'hyper-v', 's390', 'tdx' ] }
##
# @GuestPanicInformation:
@ -519,7 +521,8 @@
'base': {'type': 'GuestPanicInformationType'},
'discriminator': 'type',
'data': {'hyper-v': 'GuestPanicInformationHyperV',
's390': 'GuestPanicInformationS390'}}
's390': 'GuestPanicInformationS390',
'tdx' : 'GuestPanicInformationTdx'}}
##
# @GuestPanicInformationHyperV:
@ -598,6 +601,30 @@
'psw-addr': 'uint64',
'reason': 'S390CrashReason'}}
##
# @GuestPanicInformationTdx:
#
# TDX Guest panic information specific to TDX, as specified in the
# "Guest-Hypervisor Communication Interface (GHCI) Specification",
# section TDG.VP.VMCALL<ReportFatalError>.
#
# @error-code: TD-specific error code
#
# @message: Human-readable error message provided by the guest. Not
# to be trusted.
#
# @gpa: guest-physical address of a page that contains more verbose
# error information, as zero-terminated string. Present when the
# "GPA valid" bit (bit 63) is set in @error-code.
#
#
# Since: 10.1
##
{'struct': 'GuestPanicInformationTdx',
'data': {'error-code': 'uint32',
'message': 'str',
'*gpa': 'uint64'}}
##
# @MEMORY_FAILURE:
#