8cb4b429a2
PcdConfidentialComputingGuestAttr can be used to check the cc guest type, including td-guest or sev-guest. CcProbe() can do the same thing but CcProbeLib should be included in the dsc which uses AcpiPlatformDxe. The difference between PcdConfidentialComputingGuestAttr and CcProbe() is that PcdConfidentialComputingGuestAttr cannot be used in multi-processor scenario but CcProbe() can. But there is no such issue in AcpiPlatformDxe. So we use PcdConfidentialComputingGuestAttr instead of CcProbeLib so that it is simpler. Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Erdem Aktas <erdemaktas@google.com> Cc: James Bottomley <jejb@linux.ibm.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Min Xu <min.m.xu@intel.com>
47 lines
1.0 KiB
C
47 lines
1.0 KiB
C
/** @file
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OVMF ACPI Platform Driver
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Copyright (C) 2015, Red Hat, Inc.
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Copyright (c) 2008 - 2014, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <OvmfPlatforms.h> // CLOUDHV_DEVICE_ID
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#include <ConfidentialComputingGuestAttr.h>
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#include "AcpiPlatform.h"
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/**
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Effective entrypoint of Acpi Platform driver.
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@param ImageHandle
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@param SystemTable
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@return EFI_SUCCESS
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@return EFI_LOAD_ERROR
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@return EFI_OUT_OF_RESOURCES
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**/
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EFI_STATUS
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EFIAPI
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InstallAcpiTables (
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IN EFI_ACPI_TABLE_PROTOCOL *AcpiTable
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)
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{
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EFI_STATUS Status;
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UINT16 HostBridgeDevId;
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HostBridgeDevId = PcdGet16 (PcdOvmfHostBridgePciDevId);
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if (HostBridgeDevId == CLOUDHV_DEVICE_ID) {
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if (CC_GUEST_IS_TDX (PcdGet64 (PcdConfidentialComputingGuestAttr))) {
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Status = InstallCloudHvTablesTdx (AcpiTable);
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} else {
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Status = InstallCloudHvTables (AcpiTable);
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}
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} else {
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Status = InstallQemuFwCfgTables (AcpiTable);
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}
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return Status;
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}
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