Re: [Qemu-devel] [RFC PATCH v2 0/2] spapr: Memory hot-unplug support
Quoting Thomas Huth (2016-05-27 10:48:45) > Hi Bharata, > > On 15.03.2016 05:38, Bharata B Rao wrote: > > This patchset adds memory hot removal support for PowerPC sPAPR. > > This new version switches to using the proposed "count-indexed" type of > > hotplug identifier which allows to hot remove a number of LMBs starting > > with a given DRC index. > > > > This count-indexed hotplug identifier isn't yet part of PAPR. > > Just for clarification / my understanding: That means we also need a > modified guest to support this new interface? If yes, did you post such > patches somewhere else already, too? No patches posted yet, but hopefully soon. These bits will likely be added as part of an effort that moves all memory hotplug/unplug into guest kernel instead of relying on drmgr. Most of the bits for in-kernel memory hotplug are already upstream, but there's a number of other requirements in the spec update (like a new hotplug interrupt/queue instead of re-using EPOW) that need to be addressed as part of the switchover. > > Thomas >
Re: [Qemu-devel] [RFC PATCH v2 0/2] spapr: Memory hot-unplug support
Hi Bharata, On 15.03.2016 05:38, Bharata B Rao wrote: > This patchset adds memory hot removal support for PowerPC sPAPR. > This new version switches to using the proposed "count-indexed" type of > hotplug identifier which allows to hot remove a number of LMBs starting > with a given DRC index. > > This count-indexed hotplug identifier isn't yet part of PAPR. Just for clarification / my understanding: That means we also need a modified guest to support this new interface? If yes, did you post such patches somewhere else already, too? Thomas
[Qemu-devel] [RFC PATCH v2 0/2] spapr: Memory hot-unplug support
This patchset adds memory hot removal support for PowerPC sPAPR. This new version switches to using the proposed "count-indexed" type of hotplug identifier which allows to hot remove a number of LMBs starting with a given DRC index. This count-indexed hotplug identifier isn't yet part of PAPR. Changes in v2 - - Use count-indexed hotplug identifier type for LMB removal. v1: https://lists.gnu.org/archive/html/qemu-ppc/2015-10/msg00163.html Bharata B Rao (2): spapr: Add DRC count indexed hotplug identifier type spapr: Memory hot-unplug support hw/ppc/spapr.c | 93 +- hw/ppc/spapr_drc.c | 18 ++ hw/ppc/spapr_events.c | 57 +++ include/hw/ppc/spapr.h | 2 ++ 4 files changed, 155 insertions(+), 15 deletions(-) -- 2.1.0
