Re: [Qemu-devel] [PATCH v2] configure: enable --s390-pgste linker option

2017-08-23 Thread Cornelia Huck
On Wed, 23 Aug 2017 11:05:59 +0200 Christian Borntraeger wrote: > On 08/23/2017 10:39 AM, Cornelia Huck wrote: > > On Wed, 23 Aug 2017 10:16:27 +0200 > > Paolo Bonzini wrote: > > > >> On 23/08/2017 10:06, Thomas Huth wrote: > >>> On 23.08.2017 10:00, David Hildenbrand wrote: > On 2

Re: [Qemu-devel] [PATCH v2] configure: enable --s390-pgste linker option

2017-08-23 Thread Christian Borntraeger
On 08/23/2017 10:39 AM, Cornelia Huck wrote: > On Wed, 23 Aug 2017 10:16:27 +0200 > Paolo Bonzini wrote: > >> On 23/08/2017 10:06, Thomas Huth wrote: >>> On 23.08.2017 10:00, David Hildenbrand wrote: On 23.08.2017 08:53, Christian Borntraeger wrote: > > @@ -6522,6 +6527,20 @@ if t

Re: [Qemu-devel] [PATCH v2] configure: enable --s390-pgste linker option

2017-08-23 Thread Christian Borntraeger
On 08/23/2017 09:28 AM, Christian Ehrhardt wrote: > > > On Wed, Aug 23, 2017 at 8:53 AM, Christian Borntraeger > mailto:borntrae...@de.ibm.com>> wrote: > > KVM guests on s390 need a different page table layout than normal > processes (2kb page table + 2kb page status extensions vs 2kb

Re: [Qemu-devel] [PATCH v2] configure: enable --s390-pgste linker option

2017-08-23 Thread Cornelia Huck
On Wed, 23 Aug 2017 10:16:27 +0200 Paolo Bonzini wrote: > On 23/08/2017 10:06, Thomas Huth wrote: > > On 23.08.2017 10:00, David Hildenbrand wrote: > >> On 23.08.2017 08:53, Christian Borntraeger wrote: > >>> @@ -6522,6 +6527,20 @@ if test "$target_linux_user" = "yes" -o > >>> "$target_bsd_

Re: [Qemu-devel] [PATCH v2] configure: enable --s390-pgste linker option

2017-08-23 Thread Paolo Bonzini
On 23/08/2017 10:06, Thomas Huth wrote: > On 23.08.2017 10:00, David Hildenbrand wrote: >> On 23.08.2017 08:53, Christian Borntraeger wrote: >>> KVM guests on s390 need a different page table layout than normal >>> processes (2kb page table + 2kb page status extensions vs 2kb page table >>> only).

Re: [Qemu-devel] [PATCH v2] configure: enable --s390-pgste linker option

2017-08-23 Thread Thomas Huth
On 23.08.2017 10:00, David Hildenbrand wrote: > On 23.08.2017 08:53, Christian Borntraeger wrote: >> KVM guests on s390 need a different page table layout than normal >> processes (2kb page table + 2kb page status extensions vs 2kb page table >> only). As of today this has to be enabled via the vm.

Re: [Qemu-devel] [PATCH v2] configure: enable --s390-pgste linker option

2017-08-23 Thread David Hildenbrand
On 23.08.2017 08:53, Christian Borntraeger wrote: > KVM guests on s390 need a different page table layout than normal > processes (2kb page table + 2kb page status extensions vs 2kb page table > only). As of today this has to be enabled via the vm.allocate_pgste > sysctl. > > Newer kernels (>= 4.1

Re: [Qemu-devel] [PATCH v2] configure: enable --s390-pgste linker option

2017-08-23 Thread Thomas Huth
On 23.08.2017 08:55, Christian Borntraeger wrote: > > > On 08/23/2017 08:53 AM, Christian Borntraeger wrote: >> KVM guests on s390 need a different page table layout than normal >> processes (2kb page table + 2kb page status extensions vs 2kb page table >> only). As of today this has to be enable

Re: [Qemu-devel] [PATCH v2] configure: enable --s390-pgste linker option

2017-08-23 Thread Christian Ehrhardt
On Wed, Aug 23, 2017 at 8:53 AM, Christian Borntraeger < borntrae...@de.ibm.com> wrote: > KVM guests on s390 need a different page table layout than normal > processes (2kb page table + 2kb page status extensions vs 2kb page table > only). As of today this has to be enabled via the vm.allocate_pgs

Re: [Qemu-devel] [PATCH v2] configure: enable --s390-pgste linker option

2017-08-22 Thread Christian Borntraeger
On 08/23/2017 08:53 AM, Christian Borntraeger wrote: > KVM guests on s390 need a different page table layout than normal > processes (2kb page table + 2kb page status extensions vs 2kb page table > only). As of today this has to be enabled via the vm.allocate_pgste > sysctl. > > Newer kernels (>