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v4.10-rc8
linux
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samples
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livepatch
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livepatch-sample.c
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livepatch: samples: add sample live patching module Add a sample live patching module. Signed-off-by: Seth Jennings <sjenning@redhat.com> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Reviewed-by: Petr Mladek <pmladek@suse.cz> Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-16 11:58:20 -06:00
livepatch: samples: fix usage example comments Fix a few typos in the livepatch-sample.c usage example comments and add some whitespace to make the comments a little more legible. Reported-by: Udo Seidel <udoseidel@gmx.de> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-23 17:06:43 -06:00
livepatch: samples: add sample live patching module Add a sample live patching module. Signed-off-by: Seth Jennings <sjenning@redhat.com> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Reviewed-by: Petr Mladek <pmladek@suse.cz> Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-16 11:58:20 -06:00
livepatch: samples: fix usage example comments Fix a few typos in the livepatch-sample.c usage example comments and add some whitespace to make the comments a little more legible. Reported-by: Udo Seidel <udoseidel@gmx.de> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-23 17:06:43 -06:00
livepatch: samples: add sample live patching module Add a sample live patching module. Signed-off-by: Seth Jennings <sjenning@redhat.com> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Reviewed-by: Petr Mladek <pmladek@suse.cz> Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-16 11:58:20 -06:00
livepatch: samples: fix usage example comments Fix a few typos in the livepatch-sample.c usage example comments and add some whitespace to make the comments a little more legible. Reported-by: Udo Seidel <udoseidel@gmx.de> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-23 17:06:43 -06:00
livepatch: samples: add sample live patching module Add a sample live patching module. Signed-off-by: Seth Jennings <sjenning@redhat.com> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Reviewed-by: Petr Mladek <pmladek@suse.cz> Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-16 11:58:20 -06:00
livepatch: reuse module loader code to write relocations Reuse module loader code to write relocations, thereby eliminating the need for architecture specific relocation code in livepatch. Specifically, reuse the apply_relocate_add() function in the module loader to write relocations instead of duplicating functionality in livepatch's arch-dependent klp_write_module_reloc() function. In order to accomplish this, livepatch modules manage their own relocation sections (marked with the SHF_RELA_LIVEPATCH section flag) and livepatch-specific symbols (marked with SHN_LIVEPATCH symbol section index). To apply livepatch relocation sections, livepatch symbols referenced by relocs are resolved and then apply_relocate_add() is called to apply those relocations. In addition, remove x86 livepatch relocation code and the s390 klp_write_module_reloc() function stub. They are no longer needed since relocation work has been offloaded to module loader. Lastly, mark the module as a livepatch module so that the module loader canappropriately identify and initialize it. Signed-off-by: Jessica Yu <jeyu@redhat.com> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> # for s390 changes Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-03-22 20:03:18 -04:00
