System hang by loading FmpDxexxx.efi.
Hi all,
I built FmpDevicePkg in tianocore/edk2. Then, I load FmpDxexxx.eif in
EmulatorX64 and Minnow Board. It both crashed. I traced the code and found out
it hang at follows:
1. PcdGetBool (PcdTestKeyUsed);
2. PcdSetBoolS (PcdTestKeyUsed, TRUE);
Detail as follows:
\edk2\FmpDevicePkg\FmpDxe\ DetectTestKey.c
DetectTestKey (
VOID
)
{
….
// If PcdTestKeyUsed is already TRUE, then skip test key detection
//
TestKeyUsed = PcdGetBool (PcdTestKeyUsed); --> system hang
..
// If test key detected or an error occurred checking for the test key, then
// set PcdTestKeyUsed to TRUE.
//
if (TestKeyUsed) {
DEBUG ((DEBUG_INFO, "FmpDxe(%s): Test key detected in
PcdFmpDevicePkcs7CertBufferXdr.\n", mImageIdName));
PcdSetBoolS (PcdTestKeyUsed, TRUE); --> system hang
I modified \MdeModulePkg\MdeModulePkg.dec from
[PcdsDynamic, PcdsDynamicEx]
gEfiMdeModulePkgTokenSpaceGuid.PcdTestKeyUsed|FALSE|BOOLEAN|0x00030003
as below:
[PcdsPatchableInModule, PcdsDynamic, PcdsDynamicEx]
gEfiMdeModulePkgTokenSpaceGuid.PcdTestKeyUsed|FALSE|BOOLEAN|0x00030003
It worked fine.
Is it a bug of edk2?
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