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Date: Sat, 15 Oct 2022 07:31:45 -0400 From: Steven Rostedt <rostedt@...dmis.org> To: ira.weiny@...el.com Cc: Dan Williams <dan.j.williams@...el.com>, Alison Schofield <alison.schofield@...el.com>, Vishal Verma <vishal.l.verma@...el.com>, Ben Widawsky <bwidawsk@...nel.org>, Jonathan Cameron <Jonathan.Cameron@...wei.com>, Davidlohr Bueso <dave@...olabs.net>, linux-kernel@...r.kernel.org, linux-cxl@...r.kernel.org Subject: Re: [RFC V2 PATCH 06/11] cxl/mem: Trace DRAM Event Record On Mon, 10 Oct 2022 15:41:26 -0700 ira.weiny@...el.com wrote: > +TRACE_EVENT(dram, Call this "cxl_dram" -- Steve > + > + TP_PROTO(const char *dev_name, enum cxl_event_log_type log, > + struct cxl_event_dram *rec), > + > + TP_ARGS(dev_name, log, rec), > + > + TP_STRUCT__entry( > + CXL_EVT_TP_entry > + /* DRAM */ > + __field(u64, phys_addr) > + __field(u8, descriptor) > + __field(u8, type) > + __field(u8, transaction_type) > + __field(u8, channel) > + __field(u16, validity_flags) > + __field(u16, column) /* Out of order to pack trace record */ > + __field(u32, nibble_mask) > + __field(u32, row) > + __array(u8, cor_mask, CXL_EVENT_DER_CORRECTION_MASK_SIZE) > + __array(u8, reserved, CXL_EVENT_DER_RES_SIZE) > + __field(u8, rank) /* Out of order to pack trace record */ > + __field(u8, bank_group) /* Out of order to pack trace record */ > + __field(u8, bank) /* Out of order to pack trace record */ > + ), > + > + TP_fast_assign( > + CXL_EVT_TP_fast_assign(dev_name, log, rec->hdr); > + > + /* DRAM */ > + __entry->phys_addr = le64_to_cpu(rec->phys_addr); > + __entry->descriptor = rec->descriptor; > + __entry->type = rec->type; > + __entry->transaction_type = rec->transaction_type; > + __entry->validity_flags = get_unaligned_le16(rec->validity_flags); > + __entry->channel = rec->channel; > + __entry->rank = rec->rank; > + __entry->nibble_mask = get_unaligned_le24(rec->nibble_mask); > + __entry->bank_group = rec->bank_group; > + __entry->bank = rec->bank; > + __entry->row = get_unaligned_le24(rec->row); > + __entry->column = get_unaligned_le16(rec->column); > + memcpy(__entry->cor_mask, &rec->correction_mask, > + CXL_EVENT_DER_CORRECTION_MASK_SIZE); > + memcpy(__entry->reserved, &rec->reserved, > + CXL_EVENT_DER_RES_SIZE); > + ), > + > + CXL_EVT_TP_printk("phys_addr=%llx volatile=%s desc='%s' type='%s' " \ > + "trans_type='%s' channel=%u rank=%u nibble_mask=%x " \ > + "bank_group=%u bank=%u row=%u column=%u cor_mask=%s " \ > + "valid_flags='%s' reserved=%s", > + __entry->phys_addr & CXL_GMER_PHYS_ADDR_MASK, > + (__entry->phys_addr & CXL_GMER_PHYS_ADDR_VOLATILE) ? "TRUE" : "FALSE", > + show_event_desc_flags(__entry->descriptor), > + show_mem_event_type(__entry->type), > + show_trans_type(__entry->transaction_type), > + __entry->channel, __entry->rank, __entry->nibble_mask, > + __entry->bank_group, __entry->bank, > + __entry->row, __entry->column, > + __print_hex(__entry->cor_mask, CXL_EVENT_DER_CORRECTION_MASK_SIZE), > + show_dram_valid_flags(__entry->validity_flags), > + __print_hex(__entry->reserved, CXL_EVENT_DER_RES_SIZE) > + ) > +); > +
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