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x86/tracing, x86/mm: Move page fault tracepoints to generic

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Page fault tracepoints are interesting for other architectures as well.
Move them to be generic.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Gabriele Monaco <gmonaco@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-trace-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/89c2f284adf9b4c933f0e65811c50cef900a5a95.1747046848.git.namcao@linutronix.de
This commit is contained in:
Nam Cao
2025-05-12 12:50:59 +02:00
committed by Ingo Molnar
parent d49ae4172c
commit 06aa9378df
3 changed files with 7 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/mm/Makefile
View File

@@ -34,8 +34,6 @@ obj-y += pat/
CFLAGS_physaddr.o := -fno-stack-protector
CFLAGS_mem_encrypt_identity.o := -fno-stack-protector
CFLAGS_fault.o := -I $(src)/../include/asm/trace
obj-$(CONFIG_X86_32) += pgtable_32.o iomap_32.o
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o

2
arch/x86/mm/fault.c
View File

@@ -38,7 +38,7 @@
#include <asm/sev.h> /* snp_dump_hva_rmpentry() */
#define CREATE_TRACE_POINTS
#include <asm/trace/exceptions.h>
#include <trace/events/exceptions.h>
/*
* Returns 0 if mmiotrace is disabled, or if the fault is not

17
arch/x86/include/asm/trace/exceptions.h → include/trace/events/exceptions.h
View File

@@ -7,7 +7,7 @@
#include <linux/tracepoint.h>
DECLARE_EVENT_CLASS(x86_exceptions,
DECLARE_EVENT_CLASS(exceptions,
TP_PROTO(unsigned long address, struct pt_regs *regs,
unsigned long error_code),
@@ -22,7 +22,7 @@ DECLARE_EVENT_CLASS(x86_exceptions,
TP_fast_assign(
__entry->address = address;
__entry->ip = regs->ip;
__entry->ip = instruction_pointer(regs);
__entry->error_code = error_code;
),
@@ -30,18 +30,13 @@ DECLARE_EVENT_CLASS(x86_exceptions,
(void *)__entry->address, (void *)__entry->ip,
__entry->error_code) );
DEFINE_EVENT(x86_exceptions, page_fault_user,
DEFINE_EVENT(exceptions, page_fault_user,
TP_PROTO(unsigned long address, struct pt_regs *regs, unsigned long error_code),
TP_ARGS(address, regs, error_code));
DEFINE_EVENT(exceptions, page_fault_kernel,
TP_PROTO(unsigned long address, struct pt_regs *regs, unsigned long error_code),
TP_ARGS(address, regs, error_code));
DEFINE_EVENT(x86_exceptions, page_fault_kernel,
TP_PROTO(unsigned long address, struct pt_regs *regs, unsigned long error_code),
TP_ARGS(address, regs, error_code));
#undef TRACE_INCLUDE_PATH
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE exceptions
#endif /* _TRACE_PAGE_FAULT_H */
/* This part must be outside protection */