diff options
| author | Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> | 2018-01-18 17:50:43 -0800 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-01-20 22:59:06 +1100 |
| commit | c5cc1f4df6b16646f8fae7aab523c1820bf916e8 (patch) | |
| tree | 83164522643b8dc08f2825b3c7643f88cc74f0b5 /arch/powerpc/kernel/traps.c | |
| parent | 99cd1302327a2ccaedf905e9f6a8d8fd234bd485 (diff) | |
| download | linux-c5cc1f4df6b16646f8fae7aab523c1820bf916e8.tar.bz2 | |
powerpc/ptrace: Add memory protection key regset
The AMR/IAMR/UAMOR are part of the program context.
Allow it to be accessed via ptrace and through core files.
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/traps.c')
| -rw-r--r-- | arch/powerpc/kernel/traps.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 4b1a8e2ec023..122a3c883f4e 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -292,6 +292,13 @@ void _exception_pkey(int signr, struct pt_regs *regs, int code, local_irq_enable(); current->thread.trap_nr = code; + + /* + * Save all the pkey registers AMR/IAMR/UAMOR. Eg: Core dumps need + * to capture the content, if the task gets killed. + */ + thread_pkey_regs_save(¤t->thread); + memset(&info, 0, sizeof(info)); info.si_signo = signr; info.si_code = code; |