KVM memory slots limit on powerpc

Hi all, now that we get memory hotplugging for the spapr machine on qemu-ppc, too, it seems like we easily can hit the amount of KVM-internal memory slots now ("#define KVM_USER_MEM_SLOTS 32" in arch/powerpc/include/asm/kvm_host.h). For example, start qemu-system-ppc64 with a couple of "-device

Re: [Qemu-ppc] KVM memory slots limit on powerpc

On 04/09/15 12:07, Christian Borntraeger wrote: > Am 04.09.2015 um 12:04 schrieb Alexander Graf: >> >> >> On 04.09.15 11:59, Christian Borntraeger wrote: >>> Am 04.09.2015 um 11:35 schrieb Thomas Huth: Hi all, now that we get memory hotplugging for the spapr machine on

Re: KVM memory slots limit on powerpc

Am 04.09.2015 um 11:35 schrieb Thomas Huth: > > Hi all, > > now that we get memory hotplugging for the spapr machine on qemu-ppc, > too, it seems like we easily can hit the amount of KVM-internal memory > slots now ("#define KVM_USER_MEM_SLOTS 32" in > arch/powerpc/include/asm/kvm_host.h). For

Re: [Qemu-ppc] KVM memory slots limit on powerpc

Am 04.09.2015 um 12:04 schrieb Alexander Graf: > > > On 04.09.15 11:59, Christian Borntraeger wrote: >> Am 04.09.2015 um 11:35 schrieb Thomas Huth: >>> >>> Hi all, >>> >>> now that we get memory hotplugging for the spapr machine on qemu-ppc, >>> too, it seems like we easily can hit the amount

Re: [Qemu-ppc] KVM memory slots limit on powerpc

On Fri, 2015-09-04 at 12:28 +0200, Thomas Huth wrote: > > Maybe some rcu protected scheme that doubles the amount of memslots > > for > > each overrun? Yes, that would be good and even reduce the footprint > > for > > systems with only a small number of memslots. > > Seems like Alex Williamson

Re: [Qemu-ppc] KVM memory slots limit on powerpc

On 04/09/15 12:04, Alexander Graf wrote: > > > On 04.09.15 11:59, Christian Borntraeger wrote: >> Am 04.09.2015 um 11:35 schrieb Thomas Huth: >>> >>> Hi all, >>> >>> now that we get memory hotplugging for the spapr machine on qemu-ppc, >>> too, it seems like we easily can hit the amount of

[PATCH] powerpc/e500: move qemu machine spec together with the rest

This way we get rid of an entire file with mostly duplicated code plus a Kconfig option that you always had to take care to check it in order for kvm to work. Signed-off-by: Laurentiu Tudor --- arch/powerpc/platforms/85xx/Kconfig | 15 -

Re: [Qemu-ppc] KVM memory slots limit on powerpc

On Fri, 2015-09-04 at 12:28 +0200, Thomas Huth wrote: > On 04/09/15 12:07, Christian Borntraeger wrote: > > Am 04.09.2015 um 12:04 schrieb Alexander Graf: > >> > >> > >> On 04.09.15 11:59, Christian Borntraeger wrote: > >>> Am 04.09.2015 um 11:35 schrieb Thomas Huth: > > Hi all, >