Re: [PATCH 13/26] KVM: PPC: Add feature bitmap for magic page
On 08/31/2010 03:56 AM, Alexander Graf wrote: On 22.08.2010, at 18:42, Avi Kivity wrote: On 08/17/2010 04:57 PM, Alexander Graf wrote: We will soon add SR PV support to the shared page, so we need some infrastructure that allows the guest to query for features KVM exports. This patch adds a second return value to the magic mapping that indicated to the guest which features are available. You need to make that feature controllable from userspace, to allow new-old save/restore. Good one :). We're still missing too much stuff to even run without losing interrupts yet and you're thinking about new-old save/restore. Who'd want to migrate onto a system that's broken anyways? Besides - we're missing too many register values from the kernel side to even be able to perform a migration. I'm planning to add migration, probably after SMP. But that will be another CAP and anything before that won't be able to save/restore. I'm thinking stability and basic functionality and your running around adding features (or new archs, depending on mood). But I agree, this can wait until after SMP. -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain. ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
Re: [PATCH 13/26] KVM: PPC: Add feature bitmap for magic page
On 22.08.2010, at 18:42, Avi Kivity wrote: On 08/17/2010 04:57 PM, Alexander Graf wrote: We will soon add SR PV support to the shared page, so we need some infrastructure that allows the guest to query for features KVM exports. This patch adds a second return value to the magic mapping that indicated to the guest which features are available. You need to make that feature controllable from userspace, to allow new-old save/restore. Good one :). We're still missing too much stuff to even run without losing interrupts yet and you're thinking about new-old save/restore. Who'd want to migrate onto a system that's broken anyways? Besides - we're missing too many register values from the kernel side to even be able to perform a migration. I'm planning to add migration, probably after SMP. But that will be another CAP and anything before that won't be able to save/restore. Alex ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
Re: [PATCH 13/26] KVM: PPC: Add feature bitmap for magic page
On 08/17/2010 04:57 PM, Alexander Graf wrote: We will soon add SR PV support to the shared page, so we need some infrastructure that allows the guest to query for features KVM exports. This patch adds a second return value to the magic mapping that indicated to the guest which features are available. You need to make that feature controllable from userspace, to allow new-old save/restore. -- error compiling committee.c: too many arguments to function ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
