Re: [Qemu-devel] KVM-PR is broken with current QEMU

2016-09-21 Thread Thomas Huth
On Wed, 21 Sep 2016 07:45:35 +1000 Benjamin Herrenschmidt wrote: > On Tue, 2016-09-20 at 13:44 +0200, Thomas Huth wrote: > > > > Seems like KVM PR is using the "degraded" ISA variants (without the > > 1TB > > segments), but the new POWERPC_MMU_64K flag has not been added to > > those. > > Has th

Re: [Qemu-devel] KVM-PR is broken with current QEMU

2016-09-21 Thread Thomas Huth
On 20.09.2016 23:45, Benjamin Herrenschmidt wrote: > On Tue, 2016-09-20 at 13:44 +0200, Thomas Huth wrote: >> >> Seems like KVM PR is using the "degraded" ISA variants (without the >> 1TB >> segments), but the new POWERPC_MMU_64K flag has not been added to >> those. >> Has this been done on purpose

Re: [Qemu-devel] KVM-PR is broken with current QEMU

2016-09-20 Thread Benjamin Herrenschmidt
On Tue, 2016-09-20 at 13:44 +0200, Thomas Huth wrote: > > Seems like KVM PR is using the "degraded" ISA variants (without the > 1TB > segments), but the new POWERPC_MMU_64K flag has not been added to > those. > Has this been done on purpose, or was this just by accident? > I can make KVM PR workin

Re: [Qemu-devel] KVM-PR is broken with current QEMU

2016-09-20 Thread Cédric Le Goater
On 09/20/2016 01:44 PM, Thomas Huth wrote: > Hi, > > when I try to run my guest in KVM-PR mode, current QEMU refuses to start: > > $ sudo qemu-system-ppc64 -M pseries,accel=kvm,kvm-type=PR \ >-nographic -vga none -cpu POWER8 > qemu: fatal: Unknown MMU model 851972

[Qemu-devel] KVM-PR is broken with current QEMU

2016-09-20 Thread Thomas Huth
Hi, when I try to run my guest in KVM-PR mode, current QEMU refuses to start: $ sudo qemu-system-ppc64 -M pseries,accel=kvm,kvm-type=PR \ -nographic -vga none -cpu POWER8 qemu: fatal: Unknown MMU model 851972 ... followed by a useless register dump. I've bisected