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hw/cxl/events: Wire up get/clear event mailbox commands

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CXL testing is benefited from an artificial event log injection
mechanism.

Add an event log infrastructure to insert, get, and clear events from
the various logs available on a device.

Replace the stubbed out CXL Get/Clear Event mailbox commands with
commands that operate on the new infrastructure.

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20230530133603.16934-4-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Ira Weiny 2023-05-30 14:35:59 +01:00 • committed by Michael S. Tsirkin
parent 2f6b8c8f42
commit 22d7e3be07
6 changed files with 337 additions and 2 deletions
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40
hw/cxl/cxl-mailbox-utils.c
View file

@ -9,6 +9,7 @@
#include "qemu/osdep.h"
#include "hw/cxl/cxl.h"
#include "hw/cxl/cxl_events.h"
#include "hw/pci/pci.h"
#include "qemu/cutils.h"
#include "qemu/log.h"
@ -95,11 +96,46 @@ struct cxl_cmd {
return CXL_MBOX_SUCCESS; \
}
DEFINE_MAILBOX_HANDLER_ZEROED(events_get_records, 0x20);
DEFINE_MAILBOX_HANDLER_NOP(events_clear_records);
DEFINE_MAILBOX_HANDLER_ZEROED(events_get_interrupt_policy, 4);
DEFINE_MAILBOX_HANDLER_NOP(events_set_interrupt_policy);
static CXLRetCode cmd_events_get_records(struct cxl_cmd *cmd,
CXLDeviceState *cxlds,
uint16_t *len)
{
CXLGetEventPayload *pl;
uint8_t log_type;
int max_recs;
if (cmd->in < sizeof(log_type)) {
return CXL_MBOX_INVALID_INPUT;
}
log_type = *((uint8_t *)cmd->payload);
pl = (CXLGetEventPayload *)cmd->payload;
memset(pl, 0, sizeof(*pl));
max_recs = (cxlds->payload_size - CXL_EVENT_PAYLOAD_HDR_SIZE) /
CXL_EVENT_RECORD_SIZE;
if (max_recs > 0xFFFF) {
max_recs = 0xFFFF;
}
return cxl_event_get_records(cxlds, pl, log_type, max_recs, len);
}
static CXLRetCode cmd_events_clear_records(struct cxl_cmd *cmd,
CXLDeviceState *cxlds,
uint16_t *len)
{
CXLClearEventPayload *pl;
pl = (CXLClearEventPayload *)cmd->payload;
*len = 0;
return cxl_event_clear_records(cxlds, pl);
}
/* 8.2.9.2.1 */
static CXLRetCode cmd_firmware_update_get_info(struct cxl_cmd *cmd,
CXLDeviceState *cxl_dstate,