Steven Rostedt (VMware) 2860cd8a23 livepatch: Use the default ftrace_ops instead of REGS when ARGS is available ... When CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS is available, the ftrace call will be able to set the ip of the calling function. This will improve the performance of live kernel patching where it does not need all the regs to be stored just to change the instruction pointer. If all archs that support live kernel patching also support HAVE_DYNAMIC_FTRACE_WITH_ARGS, then the architecture specific function klp_arch_set_pc() could be made generic. It is possible that an arch can support HAVE_DYNAMIC_FTRACE_WITH_ARGS but not HAVE_DYNAMIC_FTRACE_WITH_REGS and then have access to live patching. Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: live-patching@vger.kernel.org Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>		2020-11-13 12:15:28 -05:00
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Kconfig	livepatch: Use the default ftrace_ops instead of REGS when ARGS is available	2020-11-13 12:15:28 -05:00
Makefile	livepatch: Basic API to track system state changes	2019-11-01 13:08:14 +01:00
core.c	livepatch: Make klp_apply_object_relocs static	2020-05-11 00:31:38 +02:00
core.h	livepatch: Keep replaced patches until post_patch callback is called	2019-11-01 13:08:08 +01:00
patch.c	livepatch: Use the default ftrace_ops instead of REGS when ARGS is available	2020-11-13 12:15:28 -05:00
patch.h	livepatch: Remove Nop structures when unused	2019-01-11 20:51:24 +01:00
shadow.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13	2019-05-21 11:28:45 +02:00
state.c	kernel/: fix repeated words in comments	2020-10-16 11:11:19 -07:00
state.h	livepatch: Allow to distinguish different version of system state changes	2019-11-01 13:08:19 +01:00
transition.c	livepatch: Keep replaced patches until post_patch callback is called	2019-11-01 13:08:08 +01:00
transition.h	livepatch: Remove signal sysfs attribute	2019-01-16 22:09:33 +01:00