135 lines
2.9 KiB
C
135 lines
2.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM mpx
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#if !defined(_TRACE_MPX_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_MPX_H
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#include <linux/tracepoint.h>
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#ifdef CONFIG_X86_INTEL_MPX
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TRACE_EVENT(mpx_bounds_register_exception,
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TP_PROTO(void __user *addr_referenced,
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const struct mpx_bndreg *bndreg),
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TP_ARGS(addr_referenced, bndreg),
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TP_STRUCT__entry(
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__field(void __user *, addr_referenced)
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__field(u64, lower_bound)
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__field(u64, upper_bound)
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),
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TP_fast_assign(
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__entry->addr_referenced = addr_referenced;
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__entry->lower_bound = bndreg->lower_bound;
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__entry->upper_bound = bndreg->upper_bound;
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),
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/*
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* Note that we are printing out the '~' of the upper
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* bounds register here. It is actually stored in its
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* one's complement form so that its 'init' state
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* corresponds to all 0's. But, that looks like
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* gibberish when printed out, so print out the 1's
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* complement instead of the actual value here. Note
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* though that you still need to specify filters for the
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* actual value, not the displayed one.
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*/
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TP_printk("address referenced: 0x%p bounds: lower: 0x%llx ~upper: 0x%llx",
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__entry->addr_referenced,
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__entry->lower_bound,
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~__entry->upper_bound
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)
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);
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TRACE_EVENT(bounds_exception_mpx,
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TP_PROTO(const struct mpx_bndcsr *bndcsr),
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TP_ARGS(bndcsr),
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TP_STRUCT__entry(
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__field(u64, bndcfgu)
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__field(u64, bndstatus)
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),
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TP_fast_assign(
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/* need to get rid of the 'const' on bndcsr */
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__entry->bndcfgu = (u64)bndcsr->bndcfgu;
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__entry->bndstatus = (u64)bndcsr->bndstatus;
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),
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TP_printk("bndcfgu:0x%llx bndstatus:0x%llx",
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__entry->bndcfgu,
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__entry->bndstatus)
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);
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DECLARE_EVENT_CLASS(mpx_range_trace,
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TP_PROTO(unsigned long start,
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unsigned long end),
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TP_ARGS(start, end),
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TP_STRUCT__entry(
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__field(unsigned long, start)
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__field(unsigned long, end)
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),
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TP_fast_assign(
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__entry->start = start;
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__entry->end = end;
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),
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TP_printk("[0x%p:0x%p]",
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(void *)__entry->start,
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(void *)__entry->end
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)
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);
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DEFINE_EVENT(mpx_range_trace, mpx_unmap_zap,
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TP_PROTO(unsigned long start, unsigned long end),
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TP_ARGS(start, end)
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);
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DEFINE_EVENT(mpx_range_trace, mpx_unmap_search,
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TP_PROTO(unsigned long start, unsigned long end),
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TP_ARGS(start, end)
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);
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TRACE_EVENT(mpx_new_bounds_table,
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TP_PROTO(unsigned long table_vaddr),
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TP_ARGS(table_vaddr),
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TP_STRUCT__entry(
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__field(unsigned long, table_vaddr)
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),
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TP_fast_assign(
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__entry->table_vaddr = table_vaddr;
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),
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TP_printk("table vaddr:%p", (void *)__entry->table_vaddr)
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);
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#else
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/*
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* This gets used outside of MPX-specific code, so we need a stub.
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*/
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static inline
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void trace_bounds_exception_mpx(const struct mpx_bndcsr *bndcsr)
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{
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}
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#endif /* CONFIG_X86_INTEL_MPX */
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH asm/trace/
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#undef TRACE_INCLUDE_FILE
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#define TRACE_INCLUDE_FILE mpx
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#endif /* _TRACE_MPX_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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