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/openbmc/linux/arch/s390/kernel/
H A Dalternative.cdiff d768bd892fc8f066cd3aa000eb1867bcf32db0ee Tue Jan 16 00:11:45 CST 2018 Martin Schwidefsky <schwidefsky@de.ibm.com> s390: add options to change branch prediction behaviour for the kernel

Add the PPA instruction to the system entry and exit path to switch
the kernel to a different branch prediction behaviour. The instructions
are added via CPU alternatives and can be disabled with the "nospec"
or the "nobp=0" kernel parameter. If the default behaviour selected
with CONFIG_KERNEL_NOBP is set to "n" then the "nobp=1" parameter can be
used to enable the changed kernel branch prediction.

Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
H A Dipl.cdiff d768bd892fc8f066cd3aa000eb1867bcf32db0ee Tue Jan 16 00:11:45 CST 2018 Martin Schwidefsky <schwidefsky@de.ibm.com> s390: add options to change branch prediction behaviour for the kernel

Add the PPA instruction to the system entry and exit path to switch
the kernel to a different branch prediction behaviour. The instructions
are added via CPU alternatives and can be disabled with the "nospec"
or the "nobp=0" kernel parameter. If the default behaviour selected
with CONFIG_KERNEL_NOBP is set to "n" then the "nobp=1" parameter can be
used to enable the changed kernel branch prediction.

Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
H A Dearly.cdiff d768bd892fc8f066cd3aa000eb1867bcf32db0ee Tue Jan 16 00:11:45 CST 2018 Martin Schwidefsky <schwidefsky@de.ibm.com> s390: add options to change branch prediction behaviour for the kernel

Add the PPA instruction to the system entry and exit path to switch
the kernel to a different branch prediction behaviour. The instructions
are added via CPU alternatives and can be disabled with the "nospec"
or the "nobp=0" kernel parameter. If the default behaviour selected
with CONFIG_KERNEL_NOBP is set to "n" then the "nobp=1" parameter can be
used to enable the changed kernel branch prediction.

Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
H A Dentry.Sdiff d768bd892fc8f066cd3aa000eb1867bcf32db0ee Tue Jan 16 00:11:45 CST 2018 Martin Schwidefsky <schwidefsky@de.ibm.com> s390: add options to change branch prediction behaviour for the kernel

Add the PPA instruction to the system entry and exit path to switch
the kernel to a different branch prediction behaviour. The instructions
are added via CPU alternatives and can be disabled with the "nospec"
or the "nobp=0" kernel parameter. If the default behaviour selected
with CONFIG_KERNEL_NOBP is set to "n" then the "nobp=1" parameter can be
used to enable the changed kernel branch prediction.

Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
H A Dsmp.cdiff d768bd892fc8f066cd3aa000eb1867bcf32db0ee Tue Jan 16 00:11:45 CST 2018 Martin Schwidefsky <schwidefsky@de.ibm.com> s390: add options to change branch prediction behaviour for the kernel

Add the PPA instruction to the system entry and exit path to switch
the kernel to a different branch prediction behaviour. The instructions
are added via CPU alternatives and can be disabled with the "nospec"
or the "nobp=0" kernel parameter. If the default behaviour selected
with CONFIG_KERNEL_NOBP is set to "n" then the "nobp=1" parameter can be
used to enable the changed kernel branch prediction.

Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
/openbmc/linux/arch/s390/include/asm/
H A Dprocessor.hdiff d768bd892fc8f066cd3aa000eb1867bcf32db0ee Tue Jan 16 00:11:45 CST 2018 Martin Schwidefsky <schwidefsky@de.ibm.com> s390: add options to change branch prediction behaviour for the kernel

Add the PPA instruction to the system entry and exit path to switch
the kernel to a different branch prediction behaviour. The instructions
are added via CPU alternatives and can be disabled with the "nospec"
or the "nobp=0" kernel parameter. If the default behaviour selected
with CONFIG_KERNEL_NOBP is set to "n" then the "nobp=1" parameter can be
used to enable the changed kernel branch prediction.

Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
/openbmc/linux/arch/s390/
H A DKconfigdiff d768bd892fc8f066cd3aa000eb1867bcf32db0ee Tue Jan 16 00:11:45 CST 2018 Martin Schwidefsky <schwidefsky@de.ibm.com> s390: add options to change branch prediction behaviour for the kernel

Add the PPA instruction to the system entry and exit path to switch
the kernel to a different branch prediction behaviour. The instructions
are added via CPU alternatives and can be disabled with the "nospec"
or the "nobp=0" kernel parameter. If the default behaviour selected
with CONFIG_KERNEL_NOBP is set to "n" then the "nobp=1" parameter can be
used to enable the changed kernel branch prediction.

Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>