[PATCH 3/3] powerpc/tm: Add tm-poison test

[Gustavo Romero]

Hi Michael,

On 09/03/2019 08:46 AM, Michael Ellerman wrote:
> Michael Neuling <mikey at neuling.org> writes:
>> From: Gustavo Romero <gromero at linux.ibm.com>
>>
>> Add TM selftest to check if FP or VEC register values from one process
>> can leak into another process when both run on the same CPU.
>>
>> This tests for CVE-2019-15030 and CVE-2019-15031.
>>
>> Signed-off-by: Gustavo Romero <gromero at linux.ibm.com>
>> Signed-off-by: Michael Neuling <mikey at neuling.org>
>> ---
>>   tools/testing/selftests/powerpc/tm/.gitignore |   1 +
>>   tools/testing/selftests/powerpc/tm/Makefile   |   2 +-
>>   .../testing/selftests/powerpc/tm/tm-poison.c  | 180 ++++++++++++++++++
>>   3 files changed, 182 insertions(+), 1 deletion(-)
>>   create mode 100644 tools/testing/selftests/powerpc/tm/tm-poison.c
> 
> This doesn't build on 64-bit big endian:
> 
> tm-poison.c: In function 'tm_poison_test':
> tm-poison.c:118:10: error: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'uint64_t {aka long long unsigned int}' [-Werror=format=]
>     printf("Unknown value %#lx leaked into f31!\n", unknown);
>            ^
> tm-poison.c:166:10: error: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'uint64_t {aka long long unsigned int}' [-Werror=format=]
>     printf("Unknown value %#lx leaked into vr31!\n", unknown);
>            ^

Sorry. I sent a v2 addressing it. Now I tested the fix against Travis CI.

Thank you.

Cheers,
Gustavo