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SecurityPkg: Tcg2Smm: Enable TPM2.0 interrupt support

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1. Expose _CRS, _SRS, _PRS control method to support TPM interrupt
2. Provide 2 PCDs to configure _CRS and _PRS returned data

Cc: Yao Jiewen <jiewen.yao@intel.com>
Cc: Ronald Aigner <Ronald.Aigner@microsoft.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Chao Zhang <chao.b.zhang@intel.com>
Reviewed-by: Yao Jiewen <jiewen.yao@intel.com>
This commit is contained in:
Zhang, Chao B
2018-01-08 10:13:54 +08:00
parent 630cb8507b
commit c4122dcaad
5 changed files with 388 additions and 21 deletions
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96
SecurityPkg/Tcg/Tcg2Smm/Tpm.asl
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@@ -2,7 +2,7 @@
The TPM2 definition block in ACPI table for TCG2 physical presence
and MemoryClear.
Copyright (c) 2015 - 2017, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>
(c)Copyright 2016 HP Development Company, L.P.<BR>
Copyright (c) 2017, Microsoft Corporation. All rights reserved. <BR>
This program and the accompanying materials
@@ -92,20 +92,59 @@ DefinitionBlock (
MCIP, 32, // Used for save the Mor paramter
MORD, 32, // Memory Overwrite Request Data
MRET, 32, // Memory Overwrite function return code
UCRQ, 32 // Phyical Presence request operation to Get User Confirmation Status
UCRQ, 32, // Phyical Presence request operation to Get User Confirmation Status
IRQN, 32, // IRQ Number for _CRS
SFRB, 8 // Is shortformed Pkglength for resource buffer
}
Name(RESO, ResourceTemplate () {
Memory32Fixed (ReadWrite, 0xfed40000, 0x5000, REGS)
//
// Possible resource settings returned by _PRS method
// RESS : ResourceTemplate with PkgLength <=63
// RESL : ResourceTemplate with PkgLength > 63
//
// The format of the data has to follow the same format as
// _CRS (according to ACPI spec).
//
Name (RESS, ResourceTemplate() {
Memory32Fixed (ReadWrite, 0xfed40000, 0x5000)
Interrupt(ResourceConsumer, Level, ActiveLow, Shared, , , ) {1,2,3,4,5,6,7,8,9,10}
})
Name (RESL, ResourceTemplate() {
Memory32Fixed (ReadWrite, 0xfed40000, 0x5000)
Interrupt(ResourceConsumer, Level, ActiveLow, Shared, , , ) {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}
})
//
// Current resource settings for _CRS method
//
Name(RES0, ResourceTemplate () {
Memory32Fixed (ReadWrite, 0xfed40000, 0x5000, REG0)
Interrupt(ResourceConsumer, Level, ActiveLow, Shared, , , INTR) {12}
})
Name(RES1, ResourceTemplate () {
Memory32Fixed (ReadWrite, 0xfed40000, 0x5000, REG1)
})
//
// Return the resource consumed by TPM device.
//
Method(_CRS,0,Serialized)
{
Return(RESO)
//
// IRQNum = 0 means disable IRQ support
//
If (LEqual(IRQN, 0)) {
Return (RES1)
}
Else
{
CreateDWordField(RES0, ^INTR._INT, LIRQ)
Store(IRQN, LIRQ)
Return (RES0)
}
}
//
@@ -113,23 +152,34 @@ DefinitionBlock (
// assign an interrupt number to the device. The input byte stream
// has to be the same as returned by _CRS (according to ACPI spec).
//
// Platform may choose to override this function with specific interrupt
// programing logic to replace FIFO/TIS SIRQ registers programing
//
Method(_SRS,1,Serialized)
{
//
// Do not configure Interrupt if IRQ Num is configured 0 by default
//
If (LEqual(IRQN, 0)) {
Return (0)
}
//
// Update resource descriptor
// Use the field name to identify the offsets in the argument
// buffer and RESO buffer.
// buffer and RES0 buffer.
//
CreateDWordField(Arg0, ^INTR._INT, IRQ0)
CreateDWordField(RESO, ^INTR._INT, LIRQ)
CreateDWordField(RES0, ^INTR._INT, LIRQ)
Store(IRQ0, LIRQ)
Store(IRQ0, IRQN)
CreateBitField(Arg0, ^INTR._HE, ITRG)
CreateBitField(RESO, ^INTR._HE, LTRG)
CreateBitField(RES0, ^INTR._HE, LTRG)
Store(ITRG, LTRG)
CreateBitField(Arg0, ^INTR._LL, ILVL)
CreateBitField(RESO, ^INTR._LL, LLVL)
CreateBitField(RES0, ^INTR._LL, LLVL)
Store(ILVL, LLVL)
//
@@ -176,15 +226,25 @@ DefinitionBlock (
}
}
//
// Possible resource settings.
// The format of the data has to follow the same format as
// _CRS (according to ACPI spec).
//
Name (_PRS, ResourceTemplate() {
Memory32Fixed (ReadWrite, 0xfed40000, 0x5000)
Interrupt(ResourceConsumer, Level, ActiveLow, Shared, , , SIRQ) {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}
})
Method(_PRS,0,Serialized)
{
//
// IRQNum = 0 means disable IRQ support
//
If (LEqual(IRQN, 0)) {
Return (RES1)
} ElseIf(LEqual(SFRB, 0)) {
//
// Long format. Possible resources PkgLength > 63
//
Return (RESL)
} Else {
//
// Short format. Possible resources PkgLength <=63
//
Return (RESS)
}
}
Method (PTS, 1, Serialized)
{