diff options
| -rw-r--r-- | tools/testing/cxl/test/mem.c | 68 |
1 files changed, 67 insertions, 1 deletions
diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index ab311b59899a..76bdb1ac5816 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -89,6 +89,12 @@ static struct cxl_cel_entry mock_cel[] = { .effect = cpu_to_le16(EFFECT(CONF_CHANGE_COLD_RESET) | EFFECT(CONF_CHANGE_IMMEDIATE)), }, + { + .opcode = cpu_to_le16(CXL_MBOX_OP_SANITIZE), + .effect = cpu_to_le16(EFFECT(DATA_CHANGE_IMMEDIATE) | + EFFECT(SECURITY_CHANGE_IMMEDIATE) | + EFFECT(BACKGROUND_OP)), + }, }; /* See CXL 2.0 Table 181 Get Health Info Output Payload */ @@ -152,6 +158,7 @@ struct cxl_mockmem_data { struct cxl_memdev_state *mds; u8 event_buf[SZ_4K]; u64 timestamp; + unsigned long sanitize_timeout; }; static struct mock_event_log *event_find_log(struct device *dev, int log_type) @@ -567,9 +574,26 @@ static int mock_partition_info(struct cxl_mbox_cmd *cmd) return 0; } +void cxl_mockmem_sanitize_work(struct work_struct *work) +{ + struct cxl_memdev_state *mds = + container_of(work, typeof(*mds), security.poll_dwork.work); + + mutex_lock(&mds->mbox_mutex); + if (mds->security.sanitize_node) + sysfs_notify_dirent(mds->security.sanitize_node); + mds->security.sanitize_active = false; + mutex_unlock(&mds->mbox_mutex); + + dev_dbg(mds->cxlds.dev, "sanitize complete\n"); +} + static int mock_sanitize(struct cxl_mockmem_data *mdata, struct cxl_mbox_cmd *cmd) { + struct cxl_memdev_state *mds = mdata->mds; + int rc = 0; + if (cmd->size_in != 0) return -EINVAL; @@ -585,7 +609,16 @@ static int mock_sanitize(struct cxl_mockmem_data *mdata, return -ENXIO; } - return 0; /* assume less than 2 secs, no bg */ + mutex_lock(&mds->mbox_mutex); + if (schedule_delayed_work(&mds->security.poll_dwork, + msecs_to_jiffies(mdata->sanitize_timeout))) { + mds->security.sanitize_active = true; + dev_dbg(mds->cxlds.dev, "sanitize issued\n"); + } else + rc = -EBUSY; + mutex_unlock(&mds->mbox_mutex); + + return rc; } static int mock_secure_erase(struct cxl_mockmem_data *mdata, @@ -1419,6 +1452,7 @@ static int cxl_mock_mem_probe(struct platform_device *pdev) mds->mbox_send = cxl_mock_mbox_send; mds->payload_size = SZ_4K; mds->event.buf = (struct cxl_get_event_payload *) mdata->event_buf; + INIT_DELAYED_WORK(&mds->security.poll_dwork, cxl_mockmem_sanitize_work); cxlds = &mds->cxlds; cxlds->serial = pdev->id; @@ -1458,6 +1492,10 @@ static int cxl_mock_mem_probe(struct platform_device *pdev) if (rc) return rc; + rc = devm_cxl_sanitize_setup_notifier(&pdev->dev, cxlmd); + if (rc) + return rc; + cxl_mem_get_event_records(mds, CXLDEV_EVENT_STATUS_ALL); return 0; @@ -1526,10 +1564,38 @@ static ssize_t fw_buf_checksum_show(struct device *dev, static DEVICE_ATTR_RO(fw_buf_checksum); +static ssize_t sanitize_timeout_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct cxl_mockmem_data *mdata = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%lu\n", mdata->sanitize_timeout); +} + +static ssize_t sanitize_timeout_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct cxl_mockmem_data *mdata = dev_get_drvdata(dev); + unsigned long val; + int rc; + + rc = kstrtoul(buf, 0, &val); + if (rc) + return rc; + + mdata->sanitize_timeout = val; + + return count; +} + +static DEVICE_ATTR_RW(sanitize_timeout); + static struct attribute *cxl_mock_mem_attrs[] = { &dev_attr_security_lock.attr, &dev_attr_event_trigger.attr, &dev_attr_fw_buf_checksum.attr, + &dev_attr_sanitize_timeout.attr, NULL }; ATTRIBUTE_GROUPS(cxl_mock_mem); |