[PATCH v8 15/30] powerpc/kprobes: Use patch_instruction()

Instead of using memcpy() and flush_icache_range() use patch_instruction() which not only accomplishes both of these steps but will also make it easier to add support for prefixed instructions. Reviewed-by: Alistair Popple Signed-off-by: Jordan Niethe --- v6: New to series. ---

[PATCH v8 16/30] powerpc: Define and use __get_user_instr{, inatomic}()

Define specific __get_user_instr() and __get_user_instr_inatomic() macros for reading instructions from user space. Reviewed-by: Alistair Popple Signed-off-by: Jordan Niethe --- arch/powerpc/include/asm/uaccess.h | 5 + arch/powerpc/kernel/align.c | 2 +-

[PATCH v8 22/30] powerpc: Define new SRR1 bits for a future ISA version

Add the BOUNDARY SRR1 bit definition for when the cause of an alignment exception is a prefixed instruction that crosses a 64-byte boundary. Add the PREFIXED SRR1 bit definition for exceptions caused by prefixed instructions. Bit 35 of SRR1 is called SRR1_ISI_N_OR_G. This name comes from it being

Re: [PATCH 2/2] powerpc/perf: Add support for outputting extended regs in perf intr_regs

On 4/29/20 11:34 AM, Anju T Sudhakar wrote: The capability flag PERF_PMU_CAP_EXTENDED_REGS, is used to indicate the PMU which support extended registers. The generic code define the mask of extended registers as 0 for non supported architectures. Add support for extended registers in POWER9

[PATCH 4/7] signal: refactor copy_siginfo_to_user32

Factor out a copy_siginfo_to_external32 helper from copy_siginfo_to_user32 that fills out the compat_siginfo, but does so on a kernel space data structure. With that we can let architectures override copy_siginfo_to_user32 with their own implementations using copy_siginfo_to_external32. That

Re: [PATCH 2/2] powerpc/perf: Add support for outputting extended regs in perf intr_regs

Hi Anju, Minor neats... /* diff --git a/arch/powerpc/include/uapi/asm/perf_regs.h b/arch/powerpc/include/uapi/asm/perf_regs.h index f599064dd8dc..604b831378fe 100644 --- a/arch/powerpc/include/uapi/asm/perf_regs.h +++ b/arch/powerpc/include/uapi/asm/perf_regs.h @@ -48,6 +48,17 @@ enum

[PATCH 6/7] binfmt_elf: remove the set_fs(KERNEL_DS) in elf_core_dump

There is no logic in elf_core_dump itself or in the various arch helpers called from it which use uaccess routines on kernel pointers except for the file writes thate are nicely encapsulated by using __kernel_write in dump_emit. Signed-off-by: Christoph Hellwig --- fs/binfmt_elf.c | 16

[PATCH 7/7] binfmt_elf_fdpic: remove the set_fs(KERNEL_DS) in elf_fdpic_core_dump

There is no logic in elf_fdpic_core_dump itself or in the various arch helpers called from it which use uaccess routines on kernel pointers except for the file writes thate are nicely encapsulated by using __kernel_write in dump_emit. Signed-off-by: Christoph Hellwig --- fs/binfmt_elf_fdpic.c |

[PATCH 5/7] binfmt_elf: remove the set_fs in fill_siginfo_note

From: "Eric W. Biederman" The code in binfmt_elf.c is differnt from the rest of the code that processes siginfo, as it sends siginfo from a kernel buffer to a file rather than from kernel memory to userspace buffers. To remove it's use of set_fs the code needs some different siginfo helpers.

[PATCH 3/7] powerpc/spufs: simplify spufs core dumping

Replace the coredump ->read method with a ->dump method that must call dump_emit itself. That way we avoid a buffer allocation an messing with set_fs() to call into code that is intended to deal with user buffers. For the ->get case we can now use a small on-stack buffer and avoid memory

[PATCH 2/7] powerpc/spufs: stop using access_ok

Just use the proper non __-prefixed get/put_user variants where that is not done yet. Signed-off-by: Christoph Hellwig Signed-off-by: Jeremy Kerr Signed-off-by: Christoph Hellwig --- arch/powerpc/platforms/cell/spufs/file.c | 42 +--- 1 file changed, 8 insertions(+), 34

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