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author | Dan Williams <dan.j.williams@intel.com> | 2023-06-26 02:12:26 +0300 |
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committer | Dan Williams <dan.j.williams@intel.com> | 2023-06-26 02:12:26 +0300 |
commit | 867eab655d3b38740d8d6c24705af25e0b1dbdb6 (patch) | |
tree | e2894445ab04d4b13c834da690090688d046f457 /tools/testing/cxl | |
parent | dcfb70610d40704d929d824db36b1444c8f37f7a (diff) | |
parent | f6448cb5f2f378c70d280581590e062f13ff52b3 (diff) | |
download | linux-867eab655d3b38740d8d6c24705af25e0b1dbdb6.tar.xz |
Merge branch 'for-6.5/cxl-fwupd' into for-6.5/cxl
Add the first typical (non-sanitization) consumer of the new background
command infrastructure, firmware update. Given both firmware-update and
sanitization were developed in parallel from the common
background-command baseline, resolve some minor context conflicts.
Diffstat (limited to 'tools/testing/cxl')
-rw-r--r-- | tools/testing/cxl/test/mem.c | 192 |
1 files changed, 183 insertions, 9 deletions
diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index 97de0d3b2fd0..420f01106b52 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -8,11 +8,14 @@ #include <linux/sizes.h> #include <linux/bits.h> #include <asm/unaligned.h> +#include <crypto/sha2.h> #include <cxlmem.h> #include "trace.h" #define LSA_SIZE SZ_128K +#define FW_SIZE SZ_64M +#define FW_SLOTS 3 #define DEV_SIZE SZ_2G #define EFFECT(x) (1U << x) @@ -21,42 +24,70 @@ static unsigned int poison_inject_dev_max = MOCK_INJECT_DEV_MAX; +enum cxl_command_effects { + CONF_CHANGE_COLD_RESET = 0, + CONF_CHANGE_IMMEDIATE, + DATA_CHANGE_IMMEDIATE, + POLICY_CHANGE_IMMEDIATE, + LOG_CHANGE_IMMEDIATE, + SECURITY_CHANGE_IMMEDIATE, + BACKGROUND_OP, + SECONDARY_MBOX_SUPPORTED, +}; + +#define CXL_CMD_EFFECT_NONE cpu_to_le16(0) + static struct cxl_cel_entry mock_cel[] = { { .opcode = cpu_to_le16(CXL_MBOX_OP_GET_SUPPORTED_LOGS), - .effect = cpu_to_le16(0), + .effect = CXL_CMD_EFFECT_NONE, }, { .opcode = cpu_to_le16(CXL_MBOX_OP_IDENTIFY), - .effect = cpu_to_le16(0), + .effect = CXL_CMD_EFFECT_NONE, }, { .opcode = cpu_to_le16(CXL_MBOX_OP_GET_LSA), - .effect = cpu_to_le16(0), + .effect = CXL_CMD_EFFECT_NONE, }, { .opcode = cpu_to_le16(CXL_MBOX_OP_GET_PARTITION_INFO), - .effect = cpu_to_le16(0), + .effect = CXL_CMD_EFFECT_NONE, }, { .opcode = cpu_to_le16(CXL_MBOX_OP_SET_LSA), - .effect = cpu_to_le16(EFFECT(1) | EFFECT(2)), + .effect = cpu_to_le16(EFFECT(CONF_CHANGE_IMMEDIATE) | + EFFECT(DATA_CHANGE_IMMEDIATE)), }, { .opcode = cpu_to_le16(CXL_MBOX_OP_GET_HEALTH_INFO), - .effect = cpu_to_le16(0), + .effect = CXL_CMD_EFFECT_NONE, }, { .opcode = cpu_to_le16(CXL_MBOX_OP_GET_POISON), - .effect = cpu_to_le16(0), + .effect = CXL_CMD_EFFECT_NONE, }, { .opcode = cpu_to_le16(CXL_MBOX_OP_INJECT_POISON), - .effect = cpu_to_le16(0), + .effect = cpu_to_le16(EFFECT(DATA_CHANGE_IMMEDIATE)), }, { .opcode = cpu_to_le16(CXL_MBOX_OP_CLEAR_POISON), - .effect = cpu_to_le16(0), + .effect = cpu_to_le16(EFFECT(DATA_CHANGE_IMMEDIATE)), + }, + { + .opcode = cpu_to_le16(CXL_MBOX_OP_GET_FW_INFO), + .effect = CXL_CMD_EFFECT_NONE, + }, + { + .opcode = cpu_to_le16(CXL_MBOX_OP_TRANSFER_FW), + .effect = cpu_to_le16(EFFECT(CONF_CHANGE_COLD_RESET) | + EFFECT(BACKGROUND_OP)), + }, + { + .opcode = cpu_to_le16(CXL_MBOX_OP_ACTIVATE_FW), + .effect = cpu_to_le16(EFFECT(CONF_CHANGE_COLD_RESET) | + EFFECT(CONF_CHANGE_IMMEDIATE)), }, }; @@ -109,6 +140,10 @@ struct mock_event_store { struct cxl_mockmem_data { void *lsa; + void *fw; + int fw_slot; + int fw_staged; + size_t fw_size; u32 security_state; u8 user_pass[NVDIMM_PASSPHRASE_LEN]; u8 master_pass[NVDIMM_PASSPHRASE_LEN]; @@ -1160,6 +1195,87 @@ static struct attribute *cxl_mock_mem_core_attrs[] = { }; ATTRIBUTE_GROUPS(cxl_mock_mem_core); +static int mock_fw_info(struct cxl_dev_state *cxlds, + struct cxl_mbox_cmd *cmd) +{ + struct cxl_mockmem_data *mdata = dev_get_drvdata(cxlds->dev); + struct cxl_mbox_get_fw_info fw_info = { + .num_slots = FW_SLOTS, + .slot_info = (mdata->fw_slot & 0x7) | + ((mdata->fw_staged & 0x7) << 3), + .activation_cap = 0, + }; + + strcpy(fw_info.slot_1_revision, "cxl_test_fw_001"); + strcpy(fw_info.slot_2_revision, "cxl_test_fw_002"); + strcpy(fw_info.slot_3_revision, "cxl_test_fw_003"); + strcpy(fw_info.slot_4_revision, ""); + + if (cmd->size_out < sizeof(fw_info)) + return -EINVAL; + + memcpy(cmd->payload_out, &fw_info, sizeof(fw_info)); + return 0; +} + +static int mock_transfer_fw(struct cxl_dev_state *cxlds, + struct cxl_mbox_cmd *cmd) +{ + struct cxl_mbox_transfer_fw *transfer = cmd->payload_in; + struct cxl_mockmem_data *mdata = dev_get_drvdata(cxlds->dev); + void *fw = mdata->fw; + size_t offset, length; + + offset = le32_to_cpu(transfer->offset) * CXL_FW_TRANSFER_ALIGNMENT; + length = cmd->size_in - sizeof(*transfer); + if (offset + length > FW_SIZE) + return -EINVAL; + + switch (transfer->action) { + case CXL_FW_TRANSFER_ACTION_FULL: + if (offset != 0) + return -EINVAL; + fallthrough; + case CXL_FW_TRANSFER_ACTION_END: + if (transfer->slot == 0 || transfer->slot > FW_SLOTS) + return -EINVAL; + mdata->fw_size = offset + length; + break; + case CXL_FW_TRANSFER_ACTION_INITIATE: + case CXL_FW_TRANSFER_ACTION_CONTINUE: + break; + case CXL_FW_TRANSFER_ACTION_ABORT: + return 0; + default: + return -EINVAL; + } + + memcpy(fw + offset, transfer->data, length); + return 0; +} + +static int mock_activate_fw(struct cxl_dev_state *cxlds, + struct cxl_mbox_cmd *cmd) +{ + struct cxl_mbox_activate_fw *activate = cmd->payload_in; + struct cxl_mockmem_data *mdata = dev_get_drvdata(cxlds->dev); + + if (activate->slot == 0 || activate->slot > FW_SLOTS) + return -EINVAL; + + switch (activate->action) { + case CXL_FW_ACTIVATE_ONLINE: + mdata->fw_slot = activate->slot; + mdata->fw_staged = 0; + return 0; + case CXL_FW_ACTIVATE_OFFLINE: + mdata->fw_staged = activate->slot; + return 0; + } + + return -EINVAL; +} + static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) { struct device *dev = cxlds->dev; @@ -1232,6 +1348,15 @@ static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd * case CXL_MBOX_OP_CLEAR_POISON: rc = mock_clear_poison(cxlds, cmd); break; + case CXL_MBOX_OP_GET_FW_INFO: + rc = mock_fw_info(cxlds, cmd); + break; + case CXL_MBOX_OP_TRANSFER_FW: + rc = mock_transfer_fw(cxlds, cmd); + break; + case CXL_MBOX_OP_ACTIVATE_FW: + rc = mock_activate_fw(cxlds, cmd); + break; default: break; } @@ -1247,6 +1372,11 @@ static void label_area_release(void *lsa) vfree(lsa); } +static void fw_buf_release(void *buf) +{ + vfree(buf); +} + static bool is_rcd(struct platform_device *pdev) { const struct platform_device_id *id = platform_get_device_id(pdev); @@ -1279,10 +1409,19 @@ static int cxl_mock_mem_probe(struct platform_device *pdev) mdata->lsa = vmalloc(LSA_SIZE); if (!mdata->lsa) return -ENOMEM; + mdata->fw = vmalloc(FW_SIZE); + if (!mdata->fw) + return -ENOMEM; + mdata->fw_slot = 2; + rc = devm_add_action_or_reset(dev, label_area_release, mdata->lsa); if (rc) return rc; + rc = devm_add_action_or_reset(dev, fw_buf_release, mdata->fw); + if (rc) + return rc; + cxlds = cxl_dev_state_create(dev); if (IS_ERR(cxlds)) return PTR_ERR(cxlds); @@ -1324,6 +1463,10 @@ static int cxl_mock_mem_probe(struct platform_device *pdev) if (IS_ERR(cxlmd)) return PTR_ERR(cxlmd); + rc = cxl_memdev_setup_fw_upload(cxlds); + if (rc) + return rc; + cxl_mem_get_event_records(cxlds, CXLDEV_EVENT_STATUS_ALL); return 0; @@ -1362,9 +1505,40 @@ static ssize_t security_lock_store(struct device *dev, struct device_attribute * static DEVICE_ATTR_RW(security_lock); +static ssize_t fw_buf_checksum_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct cxl_mockmem_data *mdata = dev_get_drvdata(dev); + u8 hash[SHA256_DIGEST_SIZE]; + unsigned char *hstr, *hptr; + struct sha256_state sctx; + ssize_t written = 0; + int i; + + sha256_init(&sctx); + sha256_update(&sctx, mdata->fw, mdata->fw_size); + sha256_final(&sctx, hash); + + hstr = kzalloc((SHA256_DIGEST_SIZE * 2) + 1, GFP_KERNEL); + if (!hstr) + return -ENOMEM; + + hptr = hstr; + for (i = 0; i < SHA256_DIGEST_SIZE; i++) + hptr += sprintf(hptr, "%02x", hash[i]); + + written = sysfs_emit(buf, "%s\n", hstr); + + kfree(hstr); + return written; +} + +static DEVICE_ATTR_RO(fw_buf_checksum); + static struct attribute *cxl_mock_mem_attrs[] = { &dev_attr_security_lock.attr, &dev_attr_event_trigger.attr, + &dev_attr_fw_buf_checksum.attr, NULL }; ATTRIBUTE_GROUPS(cxl_mock_mem); |