From: Hyeonggon Yoo <42.hye...@gmail.com> Per CXL r3.1 Section 8.2.9.9.5.1: Sanitize (Opcode 4400h), the sanitize command should delete all event logs. Introduce cxl_discard_all_event_logs() and call this in __do_sanitization().
Signed-off-by: Hyeonggon Yoo <42.hye...@gmail.com> Reviewed-by: Davidlohr Bueso <d...@stgolabs.net> Link: https://lore.kernel.org/r/20231222090051.3265307-5-42.hye...@gmail.com Signed-off-by: Jonathan Cameron <jonathan.came...@huawei.com> --- Tweaks: Made the reference in this description clearly refer to the 3.1 specification version. --- include/hw/cxl/cxl_device.h | 1 + hw/cxl/cxl-events.c | 13 +++++++++++++ hw/cxl/cxl-mailbox-utils.c | 1 + 3 files changed, 15 insertions(+) diff --git a/include/hw/cxl/cxl_device.h b/include/hw/cxl/cxl_device.h index 42a622197e..0509d961c3 100644 --- a/include/hw/cxl/cxl_device.h +++ b/include/hw/cxl/cxl_device.h @@ -562,6 +562,7 @@ CXLRetCode cxl_event_get_records(CXLDeviceState *cxlds, CXLGetEventPayload *pl, size_t *len); CXLRetCode cxl_event_clear_records(CXLDeviceState *cxlds, CXLClearEventPayload *pl); +void cxl_discard_all_event_records(CXLDeviceState *cxlds); void cxl_event_irq_assert(CXLType3Dev *ct3d); diff --git a/hw/cxl/cxl-events.c b/hw/cxl/cxl-events.c index d397718b1b..12dee2e467 100644 --- a/hw/cxl/cxl-events.c +++ b/hw/cxl/cxl-events.c @@ -139,6 +139,19 @@ bool cxl_event_insert(CXLDeviceState *cxlds, CXLEventLogType log_type, return cxl_event_count(log) == 1; } +void cxl_discard_all_event_records(CXLDeviceState *cxlds) +{ + CXLEventLogType log_type; + CXLEventLog *log; + + for (log_type = 0; log_type < CXL_EVENT_TYPE_MAX; log_type++) { + log = &cxlds->event_logs[log_type]; + while (!cxl_event_empty(log)) { + cxl_event_delete_head(cxlds, log_type, log); + } + } +} + CXLRetCode cxl_event_get_records(CXLDeviceState *cxlds, CXLGetEventPayload *pl, uint8_t log_type, int max_recs, size_t *len) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index adeb71071c..e3d3575b02 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -955,6 +955,7 @@ static void __do_sanitization(CXLType3Dev *ct3d) memset(lsa, 0, memory_region_size(mr)); } } + cxl_discard_all_event_records(&ct3d->cxl_dstate); } /* -- 2.43.0
