Re: [RFC PATCH v1 1/2] s390x: sigp: Force Set Architecture to return Invalid Parameter

2021-10-11 Thread David Hildenbrand
On 08.10.21 22:38, Eric Farman wrote: According to the Principles of Operation, the SIGP Set Architecture order will return Incorrect State if some CPUs are not stopped, but only if the CZAM facility is not present. If it is, the order will return Invalid Parameter because the architecture mode

Re: [RFC PATCH v1 1/2] s390x: sigp: Force Set Architecture to return Invalid Parameter

2021-10-08 Thread Thomas Huth
On 08/10/2021 22.38, Eric Farman wrote: According to the Principles of Operation, the SIGP Set Architecture order will return Incorrect State if some CPUs are not stopped, but only if the CZAM facility is not present. If it is, the order will return Invalid Parameter because the architecture

[RFC PATCH v1 1/2] s390x: sigp: Force Set Architecture to return Invalid Parameter

2021-10-08 Thread Eric Farman
According to the Principles of Operation, the SIGP Set Architecture order will return Incorrect State if some CPUs are not stopped, but only if the CZAM facility is not present. If it is, the order will return Invalid Parameter because the architecture mode cannot be changed. Since CZAM always