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SecurityPkg: AuthVariableLib: Cache UserPhysicalPresent in AuthVariableLib

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AuthVariableLib is updated to cache the UserPhysicalPresent state to global variable. This avoids calling PlatformSecureLib during runtime and makes PhysicalPresent state consistent during one boot.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chao Zhang <chao.b.zhang@intel.com>
Reviewed-by: Yao Jiewen <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
This commit is contained in:
Zhang, Chao B
2016-06-27 11:10:07 +08:00
parent 6b5677e1bb
commit 90fa53213e
3 changed files with 12 additions and 4 deletions
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7
SecurityPkg/Library/AuthVariableLib/AuthVariableLib.c
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@@ -35,6 +35,7 @@ UINT8 *mCertDbStore;
UINT32 mMaxCertDbSize;
UINT32 mPlatformMode;
UINT8 mVendorKeyState;
BOOLEAN mUserPhysicalPresent;
EFI_GUID mSignatureSupport[] = {EFI_CERT_SHA1_GUID, EFI_CERT_SHA256_GUID, EFI_CERT_RSA2048_GUID, EFI_CERT_X509_GUID};
@@ -435,6 +436,12 @@ AuthVariableLibInitialize (
AuthVarLibContextOut->AddressPointer = mAuthVarAddressPointer;
AuthVarLibContextOut->AddressPointerCount = sizeof (mAuthVarAddressPointer) / sizeof (mAuthVarAddressPointer[0]);
//
// Cache UserPhysicalPresent State.
// Platform should report PhysicalPresent before this point
//
mUserPhysicalPresent = UserPhysicalPresent();
return Status;
}