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[Qemu-devel] [PATCH v2 0/4] RFC: ovmf: Add support for TPM Physical Pres
From: |
marcandre . lureau |
Subject: |
[Qemu-devel] [PATCH v2 0/4] RFC: ovmf: Add support for TPM Physical Presence interface |
Date: |
Thu, 17 May 2018 16:47:09 +0200 |
From: Marc-André Lureau <address@hidden>
Hi,
The following series adds basic TPM PPI 1.3 support for OVMF-on-QEMU
with TPM2 (I haven't tested TPM1, for lack of interest).
PPI test runs successfully with Windows 10 WHLK, despite the limited
number of supported funcions (tpm2_ppi_funcs table, in particular, no
function allows to manipulate Tcg2PhysicalPresenceFlags)
The way it works is relatively simple: a memory region is allocated by
QEMU to save PPI related variables. An ACPI interface is exposed by
QEMU to let the guest manipulate those. At boot, ovmf processes and
updates the PPI qemu region and request variables.
I build edk2 with:
$ build -DTPM2_ENABLE -DSECURE_BOOT_ENABLE
I test with qemu & swtpm/libtpms (tpm2 branches, swtpm_setup.sh --tpm2
--tpm-state tpmstatedir)
$ swtpm socket --tpmstate tpmstatedir --ctrl type=unixio,path=tpmsock --tpm2 &
$ qemu .. -chardev socket,id=chrtpm,path=tpmsock -tpmdev
emulator,id=tpm0,chardev=chrtpm -device tpm-crb,tpmdev=tpm0
Github trees:
https://github.com/elmarco/edk2/tree/tpm-ppi
https://github.com/elmarco/qemu/tree/tpm-ppi
Thanks
v2:
- style and commit message fixes
Marc-André Lureau (4):
OvmfPkg: add Tcg2PhysicalPresenceLibNull when !TPM2_ENABLE
OvmfPkg/IndustryStandard: add QemuTpm.h header
OvmfPkg: add Tcg2PhysicalPresenceLibQemu
OvmfPkg/PlatformBootManagerLib: process TPM PPI request
OvmfPkg/OvmfPkgIa32.dsc | 4 +-
OvmfPkg/OvmfPkgIa32X64.dsc | 4 +-
OvmfPkg/OvmfPkgX64.dsc | 4 +-
.../PlatformBootManagerLib.inf | 2 +
.../DxeTcg2PhysicalPresenceLib.inf | 34 +
.../DxeTcg2PhysicalPresenceLib.inf | 25 +-
OvmfPkg/Include/IndustryStandard/QemuTpm.h | 69 ++
.../PlatformBootManagerLib/BdsPlatform.c | 8 +
.../DxeTcg2PhysicalPresenceLib.c | 19 +-
.../DxeTcg2PhysicalPresenceLib.c | 889 ++++++++++++++++++
.../DxeTcg2PhysicalPresenceLib.uni | 3 +-
.../PhysicalPresenceStrings.uni | 28 +-
12 files changed, 1039 insertions(+), 50 deletions(-)
create mode 100644
OvmfPkg/Library/Tcg2PhysicalPresenceLibNull/DxeTcg2PhysicalPresenceLib.inf
copy {SecurityPkg/Library/DxeTcg2PhysicalPresenceLib =>
OvmfPkg/Library/Tcg2PhysicalPresenceLibQemu}/DxeTcg2PhysicalPresenceLib.inf
(80%)
create mode 100644 OvmfPkg/Include/IndustryStandard/QemuTpm.h
copy
EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseLib/Ia32/CpuSleep.c
=> OvmfPkg/Library/Tcg2PhysicalPresenceLibNull/DxeTcg2PhysicalPresenceLib.c
(55%)
create mode 100644
OvmfPkg/Library/Tcg2PhysicalPresenceLibQemu/DxeTcg2PhysicalPresenceLib.c
copy {SecurityPkg/Library/DxeTcg2PhysicalPresenceLib =>
OvmfPkg/Library/Tcg2PhysicalPresenceLibQemu}/DxeTcg2PhysicalPresenceLib.uni
(97%)
copy {SecurityPkg/Library/DxeTcg2PhysicalPresenceLib =>
OvmfPkg/Library/Tcg2PhysicalPresenceLibQemu}/PhysicalPresenceStrings.uni (62%)
--
2.17.0.253.g3dd125b46d
- [Qemu-devel] [PATCH v2 0/4] RFC: ovmf: Add support for TPM Physical Presence interface,
marcandre . lureau <=