audk/CryptoPkg/Driver/CryptoSmm.c

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CryptoPkg/Driver: Add Crypto PEIM, DXE, and SMM modules https://bugzilla.tianocore.org/show_bug.cgi?id=2420 Based on the following package with changes to merge into CryptoPkg. https://github.com/microsoft/mu_plus/tree/dev/201908/SharedCryptoPkg Add the CryptoPei, CryptoDxe, and CryptoSmm modules that produce EDK II Crypto Protocols/PPIs that provide the same services as the BaseCryptLib class. In order to optimize the size of CryptoPei, CryptoDxe, and CryptoSmm modules for a specific platform, the FixedAtBuild PCD gEfiCryptoPkgTokenSpaceGuid.PcdCryptoServiceFamilyEnable is used to determine if a specific service is enabled or disabled. If a service is enabled, then a call is made to the BaseCryptLib service. If the service is disabled, then a DEBUG() message and ASSERT() are performed and a default return value is returned. This provides simple detection of a service that is disabled but is used by another module when DEBUG()/ASSERT() macros are enabled. The use of a FixedAtBuild PCD is required so the compiler and linker know each services enable/disable setting at build time and allows disabled services to be optimized away. CryptoPei supports both pre-mem and post-mem use cases. If CryptoPei is initially dispatched pre-mmem, the the register for shadow service is used so the Crypto PPI can be reinstalled post-mem. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Xiaoyu Lu <xiaoyux.lu@intel.com> Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
2019-11-21 18:24:41 +01:00
/** @file
Installs the EDK II Crypto SMM Protocol
Copyright (C) Microsoft Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <PiSmm.h>
#include <Library/SmmServicesTableLib.h>
#include <Protocol/SmmCrypto.h>
extern CONST EDKII_CRYPTO_PROTOCOL mEdkiiCrypto;
/**
The module Entry Point of the Crypto SMM Driver.
@param[in] ImageHandle The firmware allocated handle for the EFI image.
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
@retval Other Some error occurs when executing this entry point.
**/
EFI_STATUS
EFIAPI
CryptoSmmEntry (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_HANDLE Handle;
Handle = NULL;
return gSmst->SmmInstallProtocolInterface (
&Handle,
&gEdkiiSmmCryptoProtocolGuid,
EFI_NATIVE_INTERFACE,
(EDKII_CRYPTO_PROTOCOL *) &mEdkiiCrypto
);
}