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* meson: convert hw/tpmPaolo Bonzini2020-08-211-6/+0Star
| | | | | Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* tpm: Move backend code under the 'backends/' directoryPhilippe Mathieu-Daudé2020-06-191-3/+0Star
| | | | | | | | | | | | TPM subsytem is split into backends (see commit f4ede81eed2) and frontends (see i.e. 3676bc69b35). Keep the emulated hardware 'frontends' under hw/tpm/, but move the backends in the backends/tpm/ directory. Suggested-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200612085444.8362-13-philmd@redhat.com Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
* tpm: Add the SysBus TPM TIS deviceEric Auger2020-03-051-0/+1
| | | | | | | | | | | | Introduce the tpm-tis-device which is a sysbus device and is bound to be used on ARM. Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Message-id: 20200305165149.618-6-eric.auger@redhat.com Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
* tpm: Separate TPM_TIS and TPM_TIS_ISA configsEric Auger2020-03-051-1/+2
| | | | | | | | | | | | | | | Let's separate the compilation of tpm_tis_common.c from the compilation of tpm_tis_isa.c The common part will be also compiled along with the tpm_tis_sysbus device. Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Message-id: 20200305165149.618-5-eric.auger@redhat.com Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
* tpm: Separate tpm_tis common functions from isa codeEric Auger2020-03-051-1/+1
| | | | | | | | | | | | Move the device agnostic code into tpm_tis_common.c and put the ISA device specific code into tpm_tis_isa.c Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Message-id: 20200305165149.618-4-eric.auger@redhat.com Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
* tpm_spapr: Support TPM for ppc64 using CRQ based interfaceStefan Berger2020-02-021-0/+1
| | | | | | | | | | | | | | | | Implement support for TPM on ppc64 by implementing the vTPM CRQ interface as a frontend. It can use the tpm_emulator driver backend with the external swtpm. The Linux vTPM driver for ppc64 works with this emulation. This TPM emulator also handles the TPM 2 case. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Message-Id: <20200121152935.649898-4-stefanb@linux.ibm.com> [dwg: Use device_class_set_props(), tweak Kconfig] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* hw/tpm: Only build tpm_ppi.o if any of TPM_TIS/TPM_CRB is builtPhilippe Mathieu-Daudé2019-07-081-2/+2
| | | | | | | | | | | The TPM Physical Presence Interface routines are only used by the CRB/TIS interfaces. Do not compile this file if any of them is built. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
* tpm: allocate/map buffer for TPM Physical Presence interfaceStefan Berger2019-01-181-0/+1
| | | | | | | | | | | | | | | | | | | | | | | Implement a virtual memory device for the TPM Physical Presence interface. The memory is located at 0xFED45000 and used by ACPI to send messages to the firmware (BIOS) and by the firmware to provide parameters for each one of the supported codes. This interface should be used by all TPM devices on x86 and can be added by calling tpm_ppi_init_io(). Note: bios_linker cannot be used to allocate the PPI memory region, since the reserved memory should stay stable across reboots, and might be needed before the ACPI tables are installed. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Tested-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* tpm: add CRB deviceMarc-André Lureau2018-01-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | tpm_crb is a device for TPM 2.0 Command Response Buffer (CRB) Interface as defined in TCG PC Client Platform TPM Profile (PTP) Specification Family “2.0” Level 00 Revision 01.03 v22. The PTP allows device implementation to switch between TIS and CRB model at run time, but given that CRB is a simpler device to implement, I chose to implement it as a different device. The device doesn't implement other locality than 0 for now (my laptop TPM doesn't either, so I assume this isn't so bad) Tested with some success with Linux upstream and Windows 10, seabios & modified ovmf. The device is recognized and correctly transmit command/response with passthrough & emu. However, we are missing PPI ACPI part atm. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
* tpm: move qdev_prop_tpm to hw/tpm/Cornelia Huck2017-12-191-2/+3
| | | | | | | | | | | | | | | | | | | | | Building with --disable-tpm yields ../hw/core/qdev-properties-system.o: In function `set_tpm': /home/cohuck/git/qemu/hw/core/qdev-properties-system.c:274: undefined reference to `qemu_find_tpm_be' /home/cohuck/git/qemu/hw/core/qdev-properties-system.c:278: undefined reference to `tpm_backend_init' ../hw/core/qdev-properties-system.o: In function `release_tpm': /home/cohuck/git/qemu/hw/core/qdev-properties-system.c:291: undefined reference to `tpm_backend_reset' Move the implementation of DEFINE_PROP_TPMBE to hw/tpm/ so that it is only built when tpm is actually configured, and build tpm_util in every case. Fixes: 493b78303532 ("qdev: add DEFINE_PROP_TPMBE") Reported-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
* tpm: Added support for TPM emulatorAmarnath Valluri2017-10-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change introduces a new TPM backend driver that can communicate with swtpm(software TPM emulator) using unix domain socket interface. QEMU talks to the TPM emulator using QEMU's socket-based chardev backend device. Swtpm uses two Unix sockets for communications, one for plain TPM commands and responses, and one for out-of-band control messages. QEMU passes the data socket to be used over the control channel. The swtpm and associated tools can be found here: https://github.com/stefanberger/swtpm The swtpm's control channel protocol specification can be found here: https://github.com/stefanberger/swtpm/wiki/Control-Channel-Specification Usage: # setup TPM state directory mkdir /tmp/mytpm chown -R tss:root /tmp/mytpm /usr/bin/swtpm_setup --tpm-state /tmp/mytpm --createek # Ask qemu to use TPM emulator with given tpm state directory qemu-system-x86_64 \ [...] \ -chardev socket,id=chrtpm,path=/tmp/swtpm-sock \ -tpmdev emulator,id=tpm0,chardev=chrtpm \ -device tpm-tis,tpmdev=tpm0 \ [...] Signed-off-by: Amarnath Valluri <amarnath.valluri@intel.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Tested-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
* tpm: Probe for connected TPM 1.2 or TPM 2Stefan Berger2015-05-311-1/+1
| | | | | | | | | | | | | | In the TPM passthrough backend driver, modify the probing code so that we can check whether a TPM 1.2 or TPM 2 is being used and adapt the behavior of the TPM TIS accordingly. Move the code that tested for a TPM 1.2 into tpm_utils.c and extend it with test for probing for TPM 2. Have the function return the version of TPM found. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* tpm: reorganize headers and split hardware partPaolo Bonzini2013-04-151-0/+2
The TPM subsystem does not have a full front-end/back-end separation. The sole available backend, tpm_passthrough, depends on the data structures of the sole available frontend, tpm_tis. However, we can at least try to split the user interface (tpm.c) from the implementation (hw/tpm). The patches makes tpm.c not include tpm_int.h, which is shared between tpm_tis.c and tpm_passthrough.c; instead it moves more stuff to tpm_backend.h. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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