diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-12-20 16:38:12 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-02-07 21:03:10 +1100 |
| commit | a4520b25276500f1abcfc55d24f1251b7b08eff6 (patch) | |
| tree | 5301d30fe547434d5ec5e7eb5559c866722a3fa5 /arch/powerpc/include/asm/thread_info.h | |
| parent | 0c850965d6909d39fd69d6a3602bb62b48cad417 (diff) | |
powerpc/ftrace: Add support for livepatch to PPC32
PPC64 needs some special logic to properly set up the TOC.
See commit 85baa095497f ("powerpc/livepatch: Add live patching support
on ppc64le") for details.
PPC32 doesn't have TOC so it doesn't need that logic, so adding
LIVEPATCH support is straight forward.
Add CONFIG_LIVEPATCH_64 and move livepatch stack logic into that item.
Livepatch sample modules all work.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/63cb094125b6a6038c65eeac2abaabbabe63addd.1640017960.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/include/asm/thread_info.h')
| -rw-r--r-- | arch/powerpc/include/asm/thread_info.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index d6e649b3c70b..125328d1b980 100644 --- a/arch/powerpc/include/asm/thread_info.h +++ b/arch/powerpc/include/asm/thread_info.h @@ -51,7 +51,7 @@ struct thread_info { unsigned int cpu; #endif unsigned long local_flags; /* private flags for thread */ -#ifdef CONFIG_LIVEPATCH +#ifdef CONFIG_LIVEPATCH_64 unsigned long *livepatch_sp; #endif #if defined(CONFIG_VIRT_CPU_ACCOUNTING_NATIVE) && defined(CONFIG_PPC32) |