diff options
Diffstat (limited to 'hw/cxl/cxl-mailbox-utils.c')
| -rw-r--r-- | hw/cxl/cxl-mailbox-utils.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index db473135c7..4ae0561dfc 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -50,6 +50,8 @@ enum { LOGS = 0x04, #define GET_SUPPORTED 0x0 #define GET_LOG 0x1 + IDENTIFY = 0x40, + #define MEMORY_DEVICE 0x0 }; /* 8.2.8.4.5.1 Command Return Codes */ @@ -214,6 +216,48 @@ static ret_code cmd_logs_get_log(struct cxl_cmd *cmd, return CXL_MBOX_SUCCESS; } +/* 8.2.9.5.1.1 */ +static ret_code cmd_identify_memory_device(struct cxl_cmd *cmd, + CXLDeviceState *cxl_dstate, + uint16_t *len) +{ + struct { + char fw_revision[0x10]; + uint64_t total_capacity; + uint64_t volatile_capacity; + uint64_t persistent_capacity; + uint64_t partition_align; + uint16_t info_event_log_size; + uint16_t warning_event_log_size; + uint16_t failure_event_log_size; + uint16_t fatal_event_log_size; + uint32_t lsa_size; + uint8_t poison_list_max_mer[3]; + uint16_t inject_poison_limit; + uint8_t poison_caps; + uint8_t qos_telemetry_caps; + } QEMU_PACKED *id; + QEMU_BUILD_BUG_ON(sizeof(*id) != 0x43); + + uint64_t size = cxl_dstate->pmem_size; + + if (!QEMU_IS_ALIGNED(size, 256 << 20)) { + return CXL_MBOX_INTERNAL_ERROR; + } + + id = (void *)cmd->payload; + memset(id, 0, sizeof(*id)); + + /* PMEM only */ + snprintf(id->fw_revision, 0x10, "BWFW VERSION %02d", 0); + + id->total_capacity = size / (256 << 20); + id->persistent_capacity = size / (256 << 20); + + *len = sizeof(*id); + return CXL_MBOX_SUCCESS; +} + #define IMMEDIATE_CONFIG_CHANGE (1 << 1) #define IMMEDIATE_POLICY_CHANGE (1 << 3) #define IMMEDIATE_LOG_CHANGE (1 << 4) @@ -231,6 +275,8 @@ static struct cxl_cmd cxl_cmd_set[256][256] = { [TIMESTAMP][SET] = { "TIMESTAMP_SET", cmd_timestamp_set, 8, IMMEDIATE_POLICY_CHANGE }, [LOGS][GET_SUPPORTED] = { "LOGS_GET_SUPPORTED", cmd_logs_get_supported, 0, 0 }, [LOGS][GET_LOG] = { "LOGS_GET_LOG", cmd_logs_get_log, 0x18, 0 }, + [IDENTIFY][MEMORY_DEVICE] = { "IDENTIFY_MEMORY_DEVICE", + cmd_identify_memory_device, 0, 0 }, }; void cxl_process_mailbox(CXLDeviceState *cxl_dstate) |