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hw/cxl/cxl-mailbox-utils: Add dc_event_log_size field to output payload of identify memory device command

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Based on CXL spec r3.1 Table 8-127 (Identify Memory Device Output
Payload), dynamic capacity event log size should be part of
output of the Identify command.
Add dc_event_log_size to the output payload for the host to get the info.

Reviewed-by: Gregory Price <gregory.price@memverge.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Fan Ni <fan.ni@samsung.com>
Message-Id: <20240523174651.1089554-4-nifan.cxl@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Fan Ni 2024-05-23 10:44:43 -07:00 committed by Michael S. Tsirkin
parent 67adb7979b
commit 7a21e5dedb
1 changed files with 4 additions and 1 deletions
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5
hw/cxl/cxl-mailbox-utils.c
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@ -21,6 +21,7 @@
#include "sysemu/hostmem.h"
#define CXL_CAPACITY_MULTIPLIER (256 * MiB)
#define CXL_DC_EVENT_LOG_SIZE 8
/*
* How to add a new command, example. The command set FOO, with cmd BAR.
@ -780,8 +781,9 @@ static CXLRetCode cmd_identify_memory_device(const struct cxl_cmd *cmd,
uint16_t inject_poison_limit;
uint8_t poison_caps;
uint8_t qos_telemetry_caps;
uint16_t dc_event_log_size;
} QEMU_PACKED *id;
QEMU_BUILD_BUG_ON(sizeof(*id) != 0x43);
QEMU_BUILD_BUG_ON(sizeof(*id) != 0x45);
CXLType3Dev *ct3d = CXL_TYPE3(cci->d);
CXLType3Class *cvc = CXL_TYPE3_GET_CLASS(ct3d);
CXLDeviceState *cxl_dstate = &ct3d->cxl_dstate;
@ -807,6 +809,7 @@ static CXLRetCode cmd_identify_memory_device(const struct cxl_cmd *cmd,
st24_le_p(id->poison_list_max_mer, 256);
/* No limit - so limited by main poison record limit */
stw_le_p(&id->inject_poison_limit, 0);
stw_le_p(&id->dc_event_log_size, CXL_DC_EVENT_LOG_SIZE);
*len_out = sizeof(*id);
return CXL_MBOX_SUCCESS;