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Merge "refactor(measurement): move measurements from core to measurem…
…ent lib" into integration
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| /* | ||
| * SPDX-License-Identifier: BSD-3-Clause | ||
| * SPDX-FileCopyrightText: Copyright TF-RMM Contributors. | ||
| */ | ||
|
|
||
| #include <cpuid.h> | ||
| #include <measurement.h> | ||
| #include <sizes.h> | ||
| #include <string.h> | ||
|
|
||
| /* | ||
| * Allocate a dummy rec_params for copying relevant parameters for measurement | ||
| */ | ||
| static struct rmi_rec_params rec_params_per_cpu[MAX_CPUS]; | ||
|
|
||
| void measurement_data_granule_measure(unsigned char rim_measurement[], | ||
| enum hash_algo algorithm, | ||
| void *data, | ||
| unsigned long ipa, | ||
| unsigned long flags) | ||
| { | ||
| struct measurement_desc_data measure_desc = {0}; | ||
|
|
||
| /* Initialize the measurement descriptior structure */ | ||
| measure_desc.desc_type = MEASURE_DESC_TYPE_DATA; | ||
| measure_desc.len = sizeof(struct measurement_desc_data); | ||
| measure_desc.ipa = ipa; | ||
| measure_desc.flags = flags; | ||
| (void)memcpy(measure_desc.rim, rim_measurement, | ||
| measurement_get_size(algorithm)); | ||
|
|
||
| if (flags == RMI_MEASURE_CONTENT) { | ||
| /* | ||
| * Hashing the data granules and store the result in the | ||
| * measurement descriptor structure. | ||
| */ | ||
| measurement_hash_compute(algorithm, | ||
| data, | ||
| GRANULE_SIZE, | ||
| measure_desc.content); | ||
| } | ||
|
|
||
| /* | ||
| * Hashing the measurement descriptor structure; the result is the | ||
| * updated RIM. | ||
| */ | ||
| measurement_hash_compute(algorithm, | ||
| &measure_desc, | ||
| sizeof(measure_desc), | ||
| rim_measurement); | ||
| } | ||
|
|
||
| void measurement_realm_params_measure(unsigned char rim_measurement[], | ||
| enum hash_algo algorithm, | ||
| struct rmi_realm_params *realm_params) | ||
| { | ||
| /* By specification realm_params is 4KB */ | ||
| unsigned char buffer[SZ_4K] = {0}; | ||
| struct rmi_realm_params *realm_params_measured = | ||
| (struct rmi_realm_params *)&buffer[0]; | ||
|
|
||
| realm_params_measured->algorithm = realm_params->algorithm; | ||
| /* TODO: Add later */ | ||
| /* realm_params_measured->features_0 = realm_params->features_0; */ | ||
|
|
||
| /* Measure relevant realm params this will be the init value of RIM */ | ||
| measurement_hash_compute(algorithm, | ||
| buffer, | ||
| sizeof(buffer), | ||
| rim_measurement); | ||
| } | ||
|
|
||
| void measurement_rec_params_measure(unsigned char rim_measurement[], | ||
| enum hash_algo algorithm, | ||
| struct rmi_rec_params *rec_params) | ||
| { | ||
| struct measurement_desc_rec measure_desc = {0}; | ||
| struct rmi_rec_params *rec_params_measured = | ||
| &(rec_params_per_cpu[my_cpuid()]); | ||
|
|
||
| (void)memset(rec_params_measured, 0, sizeof(*rec_params_measured)); | ||
|
|
||
| /* Copy the relevant parts of the rmi_rec_params structure to be | ||
| * measured | ||
| */ | ||
| rec_params_measured->pc = rec_params->pc; | ||
| rec_params_measured->flags = rec_params->flags; | ||
| (void)memcpy(rec_params_measured->gprs, rec_params->gprs, | ||
| sizeof(rec_params->gprs)); | ||
|
|
||
| /* Initialize the measurement descriptior structure */ | ||
| measure_desc.desc_type = MEASURE_DESC_TYPE_REC; | ||
| measure_desc.len = sizeof(struct measurement_desc_rec); | ||
| (void)memcpy(measure_desc.rim, rim_measurement, | ||
| measurement_get_size(algorithm)); | ||
|
|
||
| /* | ||
| * Hashing the REC params structure and store the result in the | ||
| * measurement descriptor structure. | ||
| */ | ||
| measurement_hash_compute(algorithm, | ||
| rec_params_measured, | ||
| sizeof(*rec_params_measured), | ||
| measure_desc.content); | ||
|
|
||
| /* | ||
| * Hashing the measurement descriptor structure; the result is the | ||
| * updated RIM. | ||
| */ | ||
| measurement_hash_compute(algorithm, | ||
| &measure_desc, | ||
| sizeof(measure_desc), | ||
| rim_measurement); | ||
| } | ||
|
|
||
| void measurement_init_ripas_measure(unsigned char rim_measurement[], | ||
| enum hash_algo algorithm, | ||
| unsigned long base, | ||
| unsigned long top) | ||
| { | ||
| struct measurement_desc_ripas measure_desc = {0}; | ||
|
|
||
| /* Initialize the measurement descriptior structure */ | ||
| measure_desc.desc_type = MEASURE_DESC_TYPE_RIPAS; | ||
| measure_desc.len = sizeof(struct measurement_desc_ripas); | ||
| measure_desc.base = base; | ||
| measure_desc.top = top; | ||
| (void)memcpy(measure_desc.rim, | ||
| rim_measurement, | ||
| measurement_get_size(algorithm)); | ||
|
|
||
| /* | ||
| * Hashing the measurement descriptor structure; the result is the | ||
| * updated RIM. | ||
| */ | ||
| measurement_hash_compute(algorithm, | ||
| &measure_desc, | ||
| sizeof(measure_desc), | ||
| rim_measurement); | ||
| } |
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