Re: [PATCH v3 0/4] mm: new function to forbid zeropage mappings for a process

2014-10-23 Thread Martin Schwidefsky
On Wed, 22 Oct 2014 13:09:26 +0200 Dominik Dingel wrote: > s390 has the special notion of storage keys which are some sort of page flags > associated with physical pages and live outside of direct addressable memory. > These storage keys can be queried and changed with a special set of >

Re: [PATCH v3 0/4] mm: new function to forbid zeropage mappings for a process

2014-10-23 Thread Martin Schwidefsky
On Wed, 22 Oct 2014 13:09:26 +0200 Dominik Dingel din...@linux.vnet.ibm.com wrote: s390 has the special notion of storage keys which are some sort of page flags associated with physical pages and live outside of direct addressable memory. These storage keys can be queried and changed with a

Re: [PATCH v3 0/4] mm: new function to forbid zeropage mappings for a process

2014-10-22 Thread Paolo Bonzini
On 10/22/2014 01:09 PM, Dominik Dingel wrote: > s390 has the special notion of storage keys which are some sort of page flags > associated with physical pages and live outside of direct addressable memory. > These storage keys can be queried and changed with a special set of > instructions. >

[PATCH v3 0/4] mm: new function to forbid zeropage mappings for a process

2014-10-22 Thread Dominik Dingel
s390 has the special notion of storage keys which are some sort of page flags associated with physical pages and live outside of direct addressable memory. These storage keys can be queried and changed with a special set of instructions. The mentioned instructions behave quite nicely under

[PATCH v3 0/4] mm: new function to forbid zeropage mappings for a process

2014-10-22 Thread Dominik Dingel
s390 has the special notion of storage keys which are some sort of page flags associated with physical pages and live outside of direct addressable memory. These storage keys can be queried and changed with a special set of instructions. The mentioned instructions behave quite nicely under

Re: [PATCH v3 0/4] mm: new function to forbid zeropage mappings for a process

2014-10-22 Thread Paolo Bonzini
On 10/22/2014 01:09 PM, Dominik Dingel wrote: s390 has the special notion of storage keys which are some sort of page flags associated with physical pages and live outside of direct addressable memory. These storage keys can be queried and changed with a special set of instructions. The