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From: Anbazhagan, Baraneedharan
Sent: Thursday, May 21, 2015 5:31 AM
To: Zhang, Chao B; edk2-devel@lists.sourceforge.net
Subject: Re: [edk2] TPM device resource in ASL
In my testing
In my testing, Win7 Bitlocker fails to initialize if TPM memory region is
reported as ReadOnly.
From: Zhang, Chao B [mailto:chao.b.zh...@intel.com]
Sent: Thursday, May 21, 2015 12:12 AM
To: Anbazhagan, Baraneedharan; edk2-devel@lists.sourceforge.net
Subject: RE: TPM device resource in ASL
Barane
Baranee:
The sample in TCG PC Client Platform Firmware spec describes this memory
range ReadWrite
Device (TPM) {
Name (_HID, EISAID("MSFT0101"))
Name (_CRS, ResourceTemplate() {
Memory32Fixed (ReadWrite, 0xFED4, 0x5000,)
IRQ(Level, ActiveLow,
SecurityPkg Maintainers,
Is there a specific reason to report TPM region 0xfed4 as ReadOnly instead
of ReadWrite in ASL code? Thanks.
SecurityPkg/Tcg/TcgSmm/Tpm.asl
SecurityPkg/Tcg/TrEESmm/Tpm.asl
-Baranee
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