qemu/hw/tpm/trace-events
Marc-André Lureau ffab1be706 tpm: clear RAM when "memory overwrite" requested
Note: the "Platform Reset Attack Mitigation" specification isn't
explicit about NVDIMM, since they could have different usages. It uses
the term "system memory" generally (and also "volatile memory RAM" in
its introduction). For initial support, I propose to consider
non-volatile memory as not being subject to the memory clear. There is
an on-going discussion in the TCG "pcclientwg" working group for
future revisions.

CPU cache clearing is done unconditionally in edk2 since commit
d20ae95a13e851 (edk2-stable201811).

Signed-off-by: Marc-André Lureau <marcandre.lureau@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>
2019-01-17 21:10:57 -05:00

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# See docs/devel/tracing.txt for syntax documentation.
# hw/tpm/tpm_crb.c
tpm_crb_mmio_read(uint64_t addr, unsigned size, uint32_t val) "CRB read 0x" TARGET_FMT_plx " len:%u val: 0x%" PRIx32
tpm_crb_mmio_write(uint64_t addr, unsigned size, uint32_t val) "CRB write 0x" TARGET_FMT_plx " len:%u val: 0x%" PRIx32
# hw/tpm/tpm_passthrough.c
tpm_passthrough_handle_request(void *cmd) "processing command %p"
tpm_passthrough_reset(void) "reset"
# hw/tpm/tpm_util.c
tpm_util_get_buffer_size_hdr_len(uint32_t len, size_t expected) "tpm_resp->hdr.len = %u, expected = %zu"
tpm_util_get_buffer_size_len(uint32_t len, size_t expected) "tpm_resp->len = %u, expected = %zu"
tpm_util_get_buffer_size_hdr_len2(uint32_t len, size_t expected) "tpm2_resp->hdr.len = %u, expected = %zu"
tpm_util_get_buffer_size_len2(uint32_t len, size_t expected) "tpm2_resp->len = %u, expected = %zu"
tpm_util_get_buffer_size(size_t len) "buffersize of device: %zu"
# hw/tpm/tpm_emulator.c
tpm_emulator_set_locality(uint8_t locty) "setting locality to %d"
tpm_emulator_handle_request(void) "processing TPM command"
tpm_emulator_probe_caps(uint64_t caps) "capabilities: 0x%"PRIx64
tpm_emulator_set_buffer_size(uint32_t buffersize, uint32_t minsize, uint32_t maxsize) "buffer size: %u, min: %u, max: %u"
tpm_emulator_startup_tpm_resume(bool is_resume, size_t buffersize) "is_resume: %d, buffer size: %zu"
tpm_emulator_get_tpm_established_flag(uint8_t flag) "got established flag: %d"
tpm_emulator_cancel_cmd_not_supt(void) "Backend does not support CANCEL_TPM_CMD"
tpm_emulator_handle_device_opts_tpm12(void) "TPM Version 1.2"
tpm_emulator_handle_device_opts_tpm2(void) "TPM Version 2"
tpm_emulator_handle_device_opts_unspec(void) "TPM Version Unspecified"
tpm_emulator_handle_device_opts_startup_error(void) "Startup error"
tpm_emulator_get_state_blob(uint8_t type, uint32_t size, uint32_t flags) "got state blob type %d, %u bytes, flags 0x%08x"
tpm_emulator_set_state_blob(uint8_t type, uint32_t size, uint32_t flags) "set state blob type %d, %u bytes, flags 0x%08x"
tpm_emulator_set_state_blobs(void) "setting state blobs"
tpm_emulator_set_state_blobs_error(const char *msg) "error while setting state blobs: %s"
tpm_emulator_set_state_blobs_done(void) "Done setting state blobs"
tpm_emulator_pre_save(void) ""
tpm_emulator_inst_init(void) ""
# hw/tpm/tpm_tis.c
tpm_tis_raise_irq(uint32_t irqmask) "Raising IRQ for flag 0x%08x"
tpm_tis_new_active_locality(uint8_t locty) "Active locality is now %d"
tpm_tis_abort(uint8_t locty) "New active locality is %d"
tpm_tis_data_read(uint32_t value, uint32_t off) "byte 0x%02x [%d]"
tpm_tis_mmio_read(unsigned size, uint32_t addr, uint32_t val) " read.%u(0x%08x) = 0x%08x"
tpm_tis_mmio_write(unsigned size, uint32_t addr, uint32_t val) "write.%u(0x%08x) = 0x%08x"
tpm_tis_mmio_write_locty4(void) "Access to locality 4 only allowed from hardware"
tpm_tis_mmio_write_release_locty(uint8_t locty) "Releasing locality %d"
tpm_tis_mmio_write_locty_req_use(uint8_t locty) "Locality %d requests use"
tpm_tis_mmio_write_next_locty(uint8_t locty) "Next active locality is %d"
tpm_tis_mmio_write_locty_seized(uint8_t locty, uint8_t active) "Locality %d seized from locality %d"
tpm_tis_mmio_write_init_abort(void) "Initiating abort"
tpm_tis_mmio_write_lowering_irq(void) "Lowering IRQ"
tpm_tis_mmio_write_data2send(uint32_t value, unsigned size) "Data to send to TPM: 0x%08x (size=%d)"
tpm_tis_pre_save(uint8_t locty, uint32_t rw_offset) "locty: %d, rw_offset = %u"
# hw/tpm/tpm_ppi.c
tpm_ppi_memset(uint8_t *ptr, size_t size) "memset: %p %zu"