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Re: [Qemu-devel] [PATCH v3 3/6] Support Physical Presence Interface Spec
|
From: |
Michael S. Tsirkin |
|
Subject: |
Re: [Qemu-devel] [PATCH v3 3/6] Support Physical Presence Interface Spec |
|
Date: |
Sun, 31 May 2015 20:11:59 +0200 |
On Tue, May 26, 2015 at 05:33:41PM -0400, Stefan Berger wrote:
> For automated management of a TPM device, implement the TCG Physical Presence
> Interface Specification that allows a root user on Linux (for example) to set
> an opcode for a sequence of TPM operations that the BIOS is supposed to
> execute
> upon reboot of the physical or virtual machine. A sequence of operations may
> for
> example involve giving up ownership of the TPM and activating and enabling the
> device.
>
> The sequences of operations are defined in table 2 in the specs to be found
> at the following link:
>
> http://www.trustedcomputinggroup.org/resources/tcg_physical_presence_interface_specification
>
> As an example, in recent versions of Linux the opcode (5) can be set as
> follows:
>
> cd /sys/devices/pnp0/00\:04/ppi
>
> echo 5 > request
>
> This ACPI implementation assumes that the underlying firmware (SeaBIOS)
> has 'thrown an anchor' into the f-segment. The anchor is identified by
> two signatures (TCG_MAGIC) surrounding a 64bit pointer. The structure
> in the f-segment is write-protected and holds a pointer to a structure
> in high memmory
memory
> area where the ACPI code writes the opcode into and
> where it can read the last response from the BIOS.
>
> The supported opcodes are 1-11, 14, and 21-22. (see table 2 in spec)
> Also '0' is supported to 'clear' an intention.
>
>
No need for 2 empty spaces.
> Signed-off-by: Stefan Berger <address@hidden>
> Cc: Michael Tsirkin <address@hidden>
> Cc: Kevin O'Connor <address@hidden>
All this seems somewhat messy. Is this FSEG trick what the spec says,
or is this a QEMU specific protocol?
Would DataTableRegion not be a better way to locate things in
memory?
> ---
>
> v3->v4:
> - consolidated code following Igor's suggestions
> - marked functions as Serialized
> - added .hex.generated files
> ---
> hw/i386/ssdt-tpm-common.dsl | 182 ++++++++++++++
> hw/i386/ssdt-tpm.dsl | 1 +
> hw/i386/ssdt-tpm.hex.generated | 540
> +++++++++++++++++++++++++++++++++++++++-
> hw/i386/ssdt-tpm2.dsl | 1 +
> hw/i386/ssdt-tpm2.hex.generated | 516 +++++++++++++++++++++++++++++++++++++-
> include/hw/acpi/tpm.h | 19 ++
> 6 files changed, 1245 insertions(+), 14 deletions(-)
>
> diff --git a/hw/i386/ssdt-tpm-common.dsl b/hw/i386/ssdt-tpm-common.dsl
> index 9da4970..81d6757 100644
> --- a/hw/i386/ssdt-tpm-common.dsl
> +++ b/hw/i386/ssdt-tpm-common.dsl
> @@ -32,5 +32,187 @@
> Method (_STA, 0, NotSerialized) {
> Return (0x0F)
> }
> +
> + OperationRegion (TTIS, SystemMemory,
> + TPM_TIS_ADDR_BASE, TPM_TIS_ADDR_SIZE)
> +
> + // Define TPM Debug register
> + Field(TTIS, AnyAcc, NoLock, Preserve) {
> + Offset (0xf90),
> + TDBG, 32 // QEMU TIS Debug
> + }
> +
> + // Last accepted opcode
> + NAME(OP, Zero)
> +
> + // The base address in TIS 'RAM' where we exchange
> + // data with the BIOS lies at 0xfed40fa0
> + OperationRegion (HIGH, SystemMemory, 0xfed40fa0,
> TPM_PPI_STRUCT_SIZE)
> +
> + // Write given opcode into 'RAM'
> + Method (WRAM, 1, Serialized) {
> + Field(HIGH, AnyAcc, NoLock, Preserve) {
> + SIG1, 32,
> + SIZE, 16,
> + CODE, 8
> + }
> + If (LAnd(
> + LEqual(SIG1, TCG_MAGIC),
> + LGreaterEqual(SIZE, 1))
> + ) {
> + // Write opcode for BIOS to find
> + Store(Arg0, CODE)
> + // Remember last opcode in CODE
> + Store(Arg0, OP)
> + Return ( 0 )
> + }
> + Return ( 1 )
> + }
> +
> + // read data from 'RAM'
> + Method (RRAM, 0, Serialized) {
> + Name (OPRE, Package(3) { 1, 0, 0})
> +
> + Field(HIGH, AnyAcc, NoLock, Preserve) {
> + SIG1, 32,
> + SIZE, 16,
> + CODE, 8,
> + SUCC, 8,
> + CODO, 8,
> + RESP, 32
> + }
> + // Check signature and sufficient space
> + If (LAnd(
> + LEqual(SIG1, TCG_MAGIC),
> + LGreaterEqual(SIZE, 7)
> + )) {
> + Store(SUCC, Index(OPRE, 0))
> + Store(CODO, Index(OPRE, 1))
> + Store(RESP, Index(OPRE, 2))
> + }
> + return (OPRE)
> + }
> +
> +#ifdef TPM_1_2
> + // check for supported opcode
> + // supported opcodes: 0, 1-11, 14, 21-22
> + Method (CKOP, 1, NotSerialized) {
> + If (LOr(
> + LOr(
> + LAnd(
> + LGreaterEqual(Arg0, 0),
> + LLessEqual(Arg0, 11)
> + ),
> + LEqual(Arg0, 14)
> + ),
> + LAnd(
> + LGreaterEqual(Arg0, 21),
> + LLessEqual(Arg0, 22)
> + )
> + )) {
> + return (1)
> + } else {
> + return (0)
> + }
> + }
> +#else
> +# ifdef TPM_2_0
> + // check for supported opcode
> + // supported opcodes: 0
> + Method (CKOP, 1, NotSerialized) {
> + If (LEqual(Arg0, 0)) {
> + return (1)
> + } else {
> + return (0)
> + }
> + }
> +# endif
> +#endif
> +
> + Method (_DSM, 4, Serialized) {
> + If (LEqual (Arg0,
> ToUUID("3DDDFAA6-361B-4EB4-A424-8D10089D1653"))) {
> +
> + // only supporting API revision 1
> + If (LNotEqual (Arg1, 1)) {
> + Return (Buffer (1) {0})
> + }
> +
> + Store(ToInteger(Arg2), Local0)
> + // standard DSM query function
> + If (LEqual (Local0, 0)) {
> + Return (Buffer () {0xFF, 0x01})
> + }
> +
> + // interface version
> + If (LEqual (Local0, 1)) {
> + Return ("1.2")
> + }
> +
> + // submit TPM operation
> + If (LEqual (Local0, 2)) {
> + // get opcode from package
> + Store(DerefOf(Index(Arg3, 0)), Local0)
> +
> + If (CKOP( Local0 ) ) {
> + // Write the OP into TPM NVRAM
> + Store(WRAM ( Local0 ), Local1)
> + return (Local1)
> + } else {
> + Return (1)
> + }
> + }
> +
> + // get pending TPM operation
> + If (LEqual (Local0, 3)) {
> + NAME(PEOP, Package(2) { 0, 0 })
> +
> + Store ( 0 , Index(PEOP, 0))
> + Store ( OP, Index(PEOP, 1))
> +
> + Return (PEOP)
> + }
> +
> + // action to transition to pre-OS env.
> + If (LEqual (Local0, 4)) {
> + return (2) // Requiring reboot
> + }
> +
> + // get pre-OS TPM operation response
> + If (LEqual (Local0, 5)) {
> + Store (RRAM(), Local0)
> + return ( Local0 )
> + }
> +
> + // preferred user language
> + If (LEqual (Local0, 6)) {
> + return (3) // Not implemented
> + }
> +
> + // submit TPM operation v2
> + If (LEqual (Local0, 7)) {
> + Store(DerefOf(Index(Arg3, 0)), Local0)
> +
> + If (CKOP( Local0 )) {
> + // Write the OP into TPM NVRAM
> + Store(WRAM ( Local0 ), Local1)
> + return (Local1)
> + } else {
> + Return (1)
> + }
> + }
> +
> + // get user confirmation status
> + If (LEqual (Local0, 8)) {
> + Store(DerefOf(Index(Arg3,0)), Local0)
> +
> + if (CKOP( Local0 )) {
> + Return (4) // allowed, no user required
> + } else {
> + Return (0) // not implemented
> + }
> + }
> + }
> + return (Buffer() { 0x0 })
> + }
> }
> }
> diff --git a/hw/i386/ssdt-tpm.dsl b/hw/i386/ssdt-tpm.dsl
> index d81478c..48bf112 100644
> --- a/hw/i386/ssdt-tpm.dsl
> +++ b/hw/i386/ssdt-tpm.dsl
> @@ -25,5 +25,6 @@ DefinitionBlock (
> 0x1 // OEM Revision
> )
> {
> +#define TPM_1_2
> #include "ssdt-tpm-common.dsl"
> }
> diff --git a/hw/i386/ssdt-tpm.hex.generated b/hw/i386/ssdt-tpm.hex.generated
> index 874418c..db1d31d 100644
> --- a/hw/i386/ssdt-tpm.hex.generated
> +++ b/hw/i386/ssdt-tpm.hex.generated
> @@ -3,12 +3,12 @@ static unsigned char ssdt_tpm_aml[] = {
> 0x53,
> 0x44,
> 0x54,
> -0x6b,
> -0x0,
> +0x79,
> +0x2,
> 0x0,
> 0x0,
> 0x1,
> -0x37,
> +0xea,
> 0x42,
> 0x58,
> 0x50,
> @@ -36,8 +36,8 @@ static unsigned char ssdt_tpm_aml[] = {
> 0x14,
> 0x20,
> 0x10,
> -0x46,
> -0x4,
> +0x44,
> +0x25,
> 0x5c,
> 0x2f,
> 0x3,
> @@ -55,7 +55,8 @@ static unsigned char ssdt_tpm_aml[] = {
> 0x5f,
> 0x5b,
> 0x82,
> -0x33,
> +0x41,
> +0x24,
> 0x54,
> 0x50,
> 0x4d,
> @@ -105,5 +106,530 @@ static unsigned char ssdt_tpm_aml[] = {
> 0x0,
> 0xa4,
> 0xa,
> -0xf
> +0xf,
> +0x5b,
> +0x80,
> +0x54,
> +0x54,
> +0x49,
> +0x53,
> +0x0,
> +0xc,
> +0x0,
> +0x0,
> +0xd4,
> +0xfe,
> +0xb,
> +0x0,
> +0x50,
> +0x5b,
> +0x81,
> +0xf,
> +0x54,
> +0x54,
> +0x49,
> +0x53,
> +0x0,
> +0x0,
> +0x80,
> +0xc8,
> +0x7,
> +0x54,
> +0x44,
> +0x42,
> +0x47,
> +0x20,
> +0x8,
> +0x4f,
> +0x50,
> +0x5f,
> +0x5f,
> +0x0,
> +0x5b,
> +0x80,
> +0x48,
> +0x49,
> +0x47,
> +0x48,
> +0x0,
> +0xc,
> +0xa0,
> +0xf,
> +0xd4,
> +0xfe,
> +0xa,
> +0xe,
> +0x14,
> +0x42,
> +0x4,
> +0x57,
> +0x52,
> +0x41,
> +0x4d,
> +0x9,
> +0x5b,
> +0x81,
> +0x15,
> +0x48,
> +0x49,
> +0x47,
> +0x48,
> +0x0,
> +0x53,
> +0x49,
> +0x47,
> +0x31,
> +0x20,
> +0x53,
> +0x49,
> +0x5a,
> +0x45,
> +0x10,
> +0x43,
> +0x4f,
> +0x44,
> +0x45,
> +0x8,
> +0xa0,
> +0x21,
> +0x90,
> +0x93,
> +0x53,
> +0x49,
> +0x47,
> +0x31,
> +0xc,
> +0x54,
> +0x43,
> +0x50,
> +0x41,
> +0x92,
> +0x95,
> +0x53,
> +0x49,
> +0x5a,
> +0x45,
> +0x1,
> +0x70,
> +0x68,
> +0x43,
> +0x4f,
> +0x44,
> +0x45,
> +0x70,
> +0x68,
> +0x4f,
> +0x50,
> +0x5f,
> +0x5f,
> +0xa4,
> +0x0,
> +0xa4,
> +0x1,
> +0x14,
> +0x47,
> +0x7,
> +0x52,
> +0x52,
> +0x41,
> +0x4d,
> +0x8,
> +0x8,
> +0x4f,
> +0x50,
> +0x52,
> +0x45,
> +0x12,
> +0x5,
> +0x3,
> +0x1,
> +0x0,
> +0x0,
> +0x5b,
> +0x81,
> +0x24,
> +0x48,
> +0x49,
> +0x47,
> +0x48,
> +0x0,
> +0x53,
> +0x49,
> +0x47,
> +0x31,
> +0x20,
> +0x53,
> +0x49,
> +0x5a,
> +0x45,
> +0x10,
> +0x43,
> +0x4f,
> +0x44,
> +0x45,
> +0x8,
> +0x53,
> +0x55,
> +0x43,
> +0x43,
> +0x8,
> +0x43,
> +0x4f,
> +0x44,
> +0x4f,
> +0x8,
> +0x52,
> +0x45,
> +0x53,
> +0x50,
> +0x20,
> +0xa0,
> +0x39,
> +0x90,
> +0x93,
> +0x53,
> +0x49,
> +0x47,
> +0x31,
> +0xc,
> +0x54,
> +0x43,
> +0x50,
> +0x41,
> +0x92,
> +0x95,
> +0x53,
> +0x49,
> +0x5a,
> +0x45,
> +0xa,
> +0x7,
> +0x70,
> +0x53,
> +0x55,
> +0x43,
> +0x43,
> +0x88,
> +0x4f,
> +0x50,
> +0x52,
> +0x45,
> +0x0,
> +0x0,
> +0x70,
> +0x43,
> +0x4f,
> +0x44,
> +0x4f,
> +0x88,
> +0x4f,
> +0x50,
> +0x52,
> +0x45,
> +0x1,
> +0x0,
> +0x70,
> +0x52,
> +0x45,
> +0x53,
> +0x50,
> +0x88,
> +0x4f,
> +0x50,
> +0x52,
> +0x45,
> +0xa,
> +0x2,
> +0x0,
> +0xa4,
> +0x4f,
> +0x50,
> +0x52,
> +0x45,
> +0x14,
> +0x29,
> +0x43,
> +0x4b,
> +0x4f,
> +0x50,
> +0x1,
> +0xa0,
> +0x1e,
> +0x91,
> +0x91,
> +0x90,
> +0x92,
> +0x95,
> +0x68,
> +0x0,
> +0x92,
> +0x94,
> +0x68,
> +0xa,
> +0xb,
> +0x93,
> +0x68,
> +0xa,
> +0xe,
> +0x90,
> +0x92,
> +0x95,
> +0x68,
> +0xa,
> +0x15,
> +0x92,
> +0x94,
> +0x68,
> +0xa,
> +0x16,
> +0xa4,
> +0x1,
> +0xa1,
> +0x3,
> +0xa4,
> +0x0,
> +0x14,
> +0x43,
> +0xf,
> +0x5f,
> +0x44,
> +0x53,
> +0x4d,
> +0xc,
> +0xa0,
> +0x46,
> +0xe,
> +0x93,
> +0x68,
> +0x11,
> +0x13,
> +0xa,
> +0x10,
> +0xa6,
> +0xfa,
> +0xdd,
> +0x3d,
> +0x1b,
> +0x36,
> +0xb4,
> +0x4e,
> +0xa4,
> +0x24,
> +0x8d,
> +0x10,
> +0x8,
> +0x9d,
> +0x16,
> +0x53,
> +0xa0,
> +0xa,
> +0x92,
> +0x93,
> +0x69,
> +0x1,
> +0xa4,
> +0x11,
> +0x3,
> +0x1,
> +0x0,
> +0x70,
> +0x99,
> +0x6a,
> +0x0,
> +0x60,
> +0xa0,
> +0xb,
> +0x93,
> +0x60,
> +0x0,
> +0xa4,
> +0x11,
> +0x5,
> +0xa,
> +0x2,
> +0xff,
> +0x1,
> +0xa0,
> +0xa,
> +0x93,
> +0x60,
> +0x1,
> +0xa4,
> +0xd,
> +0x31,
> +0x2e,
> +0x32,
> +0x0,
> +0xa0,
> +0x20,
> +0x93,
> +0x60,
> +0xa,
> +0x2,
> +0x70,
> +0x83,
> +0x88,
> +0x6b,
> +0x0,
> +0x0,
> +0x60,
> +0xa0,
> +0xf,
> +0x43,
> +0x4b,
> +0x4f,
> +0x50,
> +0x60,
> +0x70,
> +0x57,
> +0x52,
> +0x41,
> +0x4d,
> +0x60,
> +0x61,
> +0xa4,
> +0x61,
> +0xa1,
> +0x3,
> +0xa4,
> +0x1,
> +0xa0,
> +0x29,
> +0x93,
> +0x60,
> +0xa,
> +0x3,
> +0x8,
> +0x50,
> +0x45,
> +0x4f,
> +0x50,
> +0x12,
> +0x4,
> +0x2,
> +0x0,
> +0x0,
> +0x70,
> +0x0,
> +0x88,
> +0x50,
> +0x45,
> +0x4f,
> +0x50,
> +0x0,
> +0x0,
> +0x70,
> +0x4f,
> +0x50,
> +0x5f,
> +0x5f,
> +0x88,
> +0x50,
> +0x45,
> +0x4f,
> +0x50,
> +0x1,
> +0x0,
> +0xa4,
> +0x50,
> +0x45,
> +0x4f,
> +0x50,
> +0xa0,
> +0x8,
> +0x93,
> +0x60,
> +0xa,
> +0x4,
> +0xa4,
> +0xa,
> +0x2,
> +0xa0,
> +0xd,
> +0x93,
> +0x60,
> +0xa,
> +0x5,
> +0x70,
> +0x52,
> +0x52,
> +0x41,
> +0x4d,
> +0x60,
> +0xa4,
> +0x60,
> +0xa0,
> +0x8,
> +0x93,
> +0x60,
> +0xa,
> +0x6,
> +0xa4,
> +0xa,
> +0x3,
> +0xa0,
> +0x20,
> +0x93,
> +0x60,
> +0xa,
> +0x7,
> +0x70,
> +0x83,
> +0x88,
> +0x6b,
> +0x0,
> +0x0,
> +0x60,
> +0xa0,
> +0xf,
> +0x43,
> +0x4b,
> +0x4f,
> +0x50,
> +0x60,
> +0x70,
> +0x57,
> +0x52,
> +0x41,
> +0x4d,
> +0x60,
> +0x61,
> +0xa4,
> +0x61,
> +0xa1,
> +0x3,
> +0xa4,
> +0x1,
> +0xa0,
> +0x1a,
> +0x93,
> +0x60,
> +0xa,
> +0x8,
> +0x70,
> +0x83,
> +0x88,
> +0x6b,
> +0x0,
> +0x0,
> +0x60,
> +0xa0,
> +0x9,
> +0x43,
> +0x4b,
> +0x4f,
> +0x50,
> +0x60,
> +0xa4,
> +0xa,
> +0x4,
> +0xa1,
> +0x3,
> +0xa4,
> +0x0,
> +0xa4,
> +0x11,
> +0x3,
> +0x1,
> +0x0
> };
> diff --git a/hw/i386/ssdt-tpm2.dsl b/hw/i386/ssdt-tpm2.dsl
> index 58bbbf8..29228a0 100644
> --- a/hw/i386/ssdt-tpm2.dsl
> +++ b/hw/i386/ssdt-tpm2.dsl
> @@ -25,5 +25,6 @@ DefinitionBlock (
> 0x1 // OEM Revision
> )
> {
> +#define TPM_2_0
> #include "ssdt-tpm-common.dsl"
> }
> diff --git a/hw/i386/ssdt-tpm2.hex.generated b/hw/i386/ssdt-tpm2.hex.generated
> index 9ea8271..a685533 100644
> --- a/hw/i386/ssdt-tpm2.hex.generated
> +++ b/hw/i386/ssdt-tpm2.hex.generated
> @@ -3,12 +3,12 @@ static unsigned char ssdt_tpm2_aml[] = {
> 0x53,
> 0x44,
> 0x54,
> -0x6b,
> -0x0,
> +0x61,
> +0x2,
> 0x0,
> 0x0,
> 0x1,
> -0x37,
> +0xe,
> 0x42,
> 0x58,
> 0x50,
> @@ -36,8 +36,8 @@ static unsigned char ssdt_tpm2_aml[] = {
> 0x14,
> 0x20,
> 0x10,
> -0x46,
> -0x4,
> +0x4c,
> +0x23,
> 0x5c,
> 0x2f,
> 0x3,
> @@ -55,7 +55,8 @@ static unsigned char ssdt_tpm2_aml[] = {
> 0x5f,
> 0x5b,
> 0x82,
> -0x33,
> +0x49,
> +0x22,
> 0x54,
> 0x50,
> 0x4d,
> @@ -105,5 +106,506 @@ static unsigned char ssdt_tpm2_aml[] = {
> 0x0,
> 0xa4,
> 0xa,
> -0xf
> +0xf,
> +0x5b,
> +0x80,
> +0x54,
> +0x54,
> +0x49,
> +0x53,
> +0x0,
> +0xc,
> +0x0,
> +0x0,
> +0xd4,
> +0xfe,
> +0xb,
> +0x0,
> +0x50,
> +0x5b,
> +0x81,
> +0xf,
> +0x54,
> +0x54,
> +0x49,
> +0x53,
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> +0x80,
> +0xc8,
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> +0x20,
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> +0x32,
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> +0x60,
> +0x70,
> +0x57,
> +0x52,
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> +0x61,
> +0xa4,
> +0x61,
> +0xa1,
> +0x3,
> +0xa4,
> +0x1,
> +0xa0,
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> +0x50,
> +0x5f,
> +0x5f,
> +0x88,
> +0x50,
> +0x45,
> +0x4f,
> +0x50,
> +0x1,
> +0x0,
> +0xa4,
> +0x50,
> +0x45,
> +0x4f,
> +0x50,
> +0xa0,
> +0x8,
> +0x93,
> +0x60,
> +0xa,
> +0x4,
> +0xa4,
> +0xa,
> +0x2,
> +0xa0,
> +0xd,
> +0x93,
> +0x60,
> +0xa,
> +0x5,
> +0x70,
> +0x52,
> +0x52,
> +0x41,
> +0x4d,
> +0x60,
> +0xa4,
> +0x60,
> +0xa0,
> +0x8,
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> +0xa4,
> +0xa,
> +0x3,
> +0xa0,
> +0x20,
> +0x93,
> +0x60,
> +0xa,
> +0x7,
> +0x70,
> +0x83,
> +0x88,
> +0x6b,
> +0x0,
> +0x0,
> +0x60,
> +0xa0,
> +0xf,
> +0x43,
> +0x4b,
> +0x4f,
> +0x50,
> +0x60,
> +0x70,
> +0x57,
> +0x52,
> +0x41,
> +0x4d,
> +0x60,
> +0x61,
> +0xa4,
> +0x61,
> +0xa1,
> +0x3,
> +0xa4,
> +0x1,
> +0xa0,
> +0x1a,
> +0x93,
> +0x60,
> +0xa,
> +0x8,
> +0x70,
> +0x83,
> +0x88,
> +0x6b,
> +0x0,
> +0x0,
> +0x60,
> +0xa0,
> +0x9,
> +0x43,
> +0x4b,
> +0x4f,
> +0x50,
> +0x60,
> +0xa4,
> +0xa,
> +0x4,
> +0xa1,
> +0x3,
> +0xa4,
> +0x0,
> +0xa4,
> +0x11,
> +0x3,
> +0x1,
> +0x0
> };
> diff --git a/include/hw/acpi/tpm.h b/include/hw/acpi/tpm.h
> index 6d516c6..4437543 100644
> --- a/include/hw/acpi/tpm.h
> +++ b/include/hw/acpi/tpm.h
> @@ -31,4 +31,23 @@
>
> #define TPM2_START_METHOD_MMIO 6
>
> +/*
> + * Physical Presence Interface -- shared with the BIOS
> + */
> +#define TCG_MAGIC 0x41504354
> +
> +#if 0
> +struct tpm_ppi {
coding style violation.
> + uint32_t sign; // TCG_MAGIC
> + uint16_t size; // number of subsequent bytes for ACPI to access
> + uint8_t opcode; // set by ACPI
> + uint8_t failure; // set by BIOS (0 = success)
> + uint8_t recent_opcode; // set by BIOS
> + uint32_t response; // set by BIOS
> + uint8_t next_step; // BIOS only
> +} QEMU_PACKED;
> +#endif
> +
> +#define TPM_PPI_STRUCT_SIZE 14
> +
> #endif /* HW_ACPI_TPM_H */
> --
> 1.9.3
>
- [Qemu-devel] [PATCH v3 0/6] Extend TPM support with a QEMU-external TPM, Stefan Berger, 2015/05/26
- [Qemu-devel] [PATCH v3 2/6] Introduce RAM location in vendor specific area in TIS, Stefan Berger, 2015/05/26
- [Qemu-devel] [PATCH v3 5/6] Introduce condition in TPM backend for notification, Stefan Berger, 2015/05/26
- [Qemu-devel] [PATCH v3 3/6] Support Physical Presence Interface Spec, Stefan Berger, 2015/05/26
- Re: [Qemu-devel] [PATCH v3 3/6] Support Physical Presence Interface Spec,
Michael S. Tsirkin <=
- [Qemu-devel] [PATCH v3 1/6] Provide support for the CUSE TPM, Stefan Berger, 2015/05/26
- [Qemu-devel] [PATCH v3 4/6] Introduce condition to notifiy waiters of completed command, Stefan Berger, 2015/05/26
- [Qemu-devel] [PATCH v3 6/6] Add support for VM suspend/resume for TPM TIS, Stefan Berger, 2015/05/26
- Re: [Qemu-devel] [PATCH v3 0/6] Extend TPM support with a QEMU-external TPM, Michael S. Tsirkin, 2015/05/31