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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-17 17:11:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-17 17:11:27 -0700 |
| commit | 0b86c75db6e7f68c22ac5d0dae0f551c4897cdf5 (patch) | |
| tree | d1be280c331fbd85c021b5686914d2cc21475f54 /arch/powerpc/kernel/process.c | |
| parent | 16bf8348055fe4615bd08ef50f9874f5dcc10268 (diff) | |
| parent | be69f70e6395a4ba9c178b2531433547e1955195 (diff) | |
| download | op-kernel-dev-0b86c75db6e7f68c22ac5d0dae0f551c4897cdf5.zip op-kernel-dev-0b86c75db6e7f68c22ac5d0dae0f551c4897cdf5.tar.gz | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
Pull livepatching updates from Jiri Kosina:
- remove of our own implementation of architecture-specific relocation
code and leveraging existing code in the module loader to perform
arch-dependent work, from Jessica Yu.
The relevant patches have been acked by Rusty (for module.c) and
Heiko (for s390).
- live patching support for ppc64le, which is a joint work of Michael
Ellerman and Torsten Duwe. This is coming from topic branch that is
share between livepatching.git and ppc tree.
- addition of livepatching documentation from Petr Mladek
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
livepatch: make object/func-walking helpers more robust
livepatch: Add some basic livepatch documentation
powerpc/livepatch: Add live patching support on ppc64le
powerpc/livepatch: Add livepatch stack to struct thread_info
powerpc/livepatch: Add livepatch header
livepatch: Allow architectures to specify an alternate ftrace location
ftrace: Make ftrace_location_range() global
livepatch: robustify klp_register_patch() API error checking
Documentation: livepatch: outline Elf format and requirements for patch modules
livepatch: reuse module loader code to write relocations
module: s390: keep mod_arch_specific for livepatch modules
module: preserve Elf information for livepatch modules
Elf: add livepatch-specific Elf constants
Diffstat (limited to 'arch/powerpc/kernel/process.c')
| -rw-r--r-- | arch/powerpc/kernel/process.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index b8500b4..2a9280b 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -55,6 +55,8 @@ #include <asm/firmware.h> #endif #include <asm/code-patching.h> +#include <asm/livepatch.h> + #include <linux/kprobes.h> #include <linux/kdebug.h> @@ -1400,13 +1402,15 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, extern void ret_from_kernel_thread(void); void (*f)(void); unsigned long sp = (unsigned long)task_stack_page(p) + THREAD_SIZE; + struct thread_info *ti = task_thread_info(p); + + klp_init_thread_info(ti); /* Copy registers */ sp -= sizeof(struct pt_regs); childregs = (struct pt_regs *) sp; if (unlikely(p->flags & PF_KTHREAD)) { /* kernel thread */ - struct thread_info *ti = (void *)task_stack_page(p); memset(childregs, 0, sizeof(struct pt_regs)); childregs->gpr[1] = sp + sizeof(struct pt_regs); /* function */ |
