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SecurityPkg/Tcg2: Add Support Laml, Lasa for TPM2 ACPI.

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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=978

Tcg2Dxe produces PcdTpm2AcpiTableLaml/Lasa for event log address.
Tcg2Smm consumes PcdTpm2AcpiTableLaml/Lasa to fill TPM2 ACPI table.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Chao Zhang <chao.b.zhang@intel.com>
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
This commit is contained in:
Jiewen Yao
2019-09-28 19:56:08 +08:00
parent 1fca55285b
commit a7e2d20193
4 changed files with 60 additions and 9 deletions
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32
SecurityPkg/Tcg/Tcg2Dxe/Tcg2Dxe.c
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@@ -1467,17 +1467,37 @@ SetupEventLog (
for (Index = 0; Index < sizeof(mTcg2EventInfo)/sizeof(mTcg2EventInfo[0]); Index++) {
if ((mTcgDxeData.BsCap.SupportedEventLogs & mTcg2EventInfo[Index].LogFormat) != 0) {
mTcgDxeData.EventLogAreaStruct[Index].EventLogFormat = mTcg2EventInfo[Index].LogFormat;
Status = gBS->AllocatePages (
AllocateAnyPages,
EfiBootServicesData,
EFI_SIZE_TO_PAGES (PcdGet32 (PcdTcgLogAreaMinLen)),
&Lasa
);
if (PcdGet8(PcdTpm2AcpiTableRev) >= 4) {
Status = gBS->AllocatePages (
AllocateAnyPages,
EfiACPIMemoryNVS,
EFI_SIZE_TO_PAGES (PcdGet32 (PcdTcgLogAreaMinLen)),
&Lasa
);
} else {
Status = gBS->AllocatePages (
AllocateAnyPages,
EfiBootServicesData,
EFI_SIZE_TO_PAGES (PcdGet32 (PcdTcgLogAreaMinLen)),
&Lasa
);
}
if (EFI_ERROR (Status)) {
return Status;
}
mTcgDxeData.EventLogAreaStruct[Index].Lasa = Lasa;
mTcgDxeData.EventLogAreaStruct[Index].Laml = PcdGet32 (PcdTcgLogAreaMinLen);
if ((PcdGet8(PcdTpm2AcpiTableRev) >= 4) ||
(mTcg2EventInfo[Index].LogFormat == EFI_TCG2_EVENT_LOG_FORMAT_TCG_2)) {
//
// Report TCG2 event log address and length, so that they can be reported in TPM2 ACPI table.
// Ignore the return status, because those fields are optional.
//
PcdSet32S(PcdTpm2AcpiTableLaml, (UINT32)mTcgDxeData.EventLogAreaStruct[Index].Laml);
PcdSet64S(PcdTpm2AcpiTableLasa, mTcgDxeData.EventLogAreaStruct[Index].Lasa);
}
//
// To initialize them as 0xFF is recommended
// because the OS can know the last entry for that.