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Violators will be prosecuted for from ; Thu, 18 May 2017 18:54:33 -0300 From: Daniel Henrique Barboza Date: Thu, 18 May 2017 18:54:11 -0300 Message-Id: <20170518215416.5613-1-danielhb@linux.vnet.ibm.com> Subject: [Qemu-devel] [RESEND PATCH v10 0/5] migration/ppc: migrating DRC and ccs_list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au, mdroth@linux.vnet.ibm.com v10: - removed 'migrating pending_events' patch this series - patch 1: * removed extra line between definitions; * removed spapr_pending_dimms functions definitons from spapr.h * turned spapr_pending_dimms functions into static - patch 2: * fixed the switch() statement - PHB and VIO cases goes to default, default now executes assert() - patch 3: * minor style changes/fixes * changed switch default to execute assert() and now uses the same logic for both CPU and LMB DRCs - patch 4 (*new*): * this new patch implements a new function to recover the pending DIMM unplug LMB state inside the spapr_lmb_release callback v9: - patch 1 (*new*): added a qtail in sPAPRMachineState called pending_dimm_unplugs that stores the DIMM LMB state during the unplug process. - patch 2 (*new*): merged v8-patch1 and v8-patch2: removing detach_cb and detach_cb_opaque. - patch 3: * removed dk->vmsd entry. We're using vmstate_register instead * added 'awaiting_allocation' flag in the DRC migration - patch 4 (*new*): migrating spapr->pending_dimm_unplugs qtailq to allow for an ongoing PCDIMM unplug to continue after a migration. v8: - new patch added: 'removing spapr_drc_detach_cb opaques'. This new patch removes the need for the detach_cb_opaques inside the removal callback functions. See the commit message of the patch for more info. v7: - removed the first patch. DRC registration is now done by vmstate_register in patch 2. - added a new patch that changes spapr_dr_connector_new to receive as argument the detach_cb. - removed the callback logic of patch 2 since there is no need to restore the detach_cb on post-load due to the detach_cb on spapr_dr_connector_new change. - added word separators in the VMSD names of patch 3 and 4. v6: - Rebased with QEMU master after 6+ months. - Simplified the logic in patch 1. - Reworked patch 2: added CPU DRC migration, removed a function pointer from DRC class and minor improvements. - Added clarifications from the previous v5 discussions in the commit messages. v5: - Rebased to David's ppc-for-2.8. v4: - Introduce a way to set customized instance_id in SaveStateEntry. Use it to set instance_id for DRC using its unique index to address David Gibson's concern. - Rename VMS_CSTM to VMS_LINKED based on Paolo Bonzini's suggestions. - Clean up qjson stuff in put_qtailq. - Add trace for put_qtailq and get_qtailq based on David Gilbert's suggestion. - Based on David's ppc-for-2.7. v3: - Simplify overall design followng discussion with Paolo. No longer need metadata to migrate QTAILQ. - Extend VMStateInfo instead of adding similar fields to VMStateField. - Clean up macros in qemu/queue.h. (link: https://lists.nongnu.org/archive/html/qemu-devel/2016-05/msg05695.html) v2: - Introduce a general approach to migrate QTAILQ in qemu/queue.h. - Migrate signalled field in the DRC state. - Put the newly added migrating fields in subsections so that backward migration is not broken. - Set detach_cb field right after migration so that a migrated hot-unplug event could finish its course. (link: https://lists.nongnu.org/archive/html/qemu-devel/2016-05/msg04188.html) v1: - Inital version. (link: https://lists.nongnu.org/archive/html/qemu-devel/2016-04/msg02601.html) To make guest devices (PCI, CPU and memory) hotplug work together with guest migration, spapr drc state needs be transmitted in migration. This patch defines the VMStateDescription struct for spapr drc state to enable it. To fix the potential racing between hotplug events on guest and guest migration and ccs_list of spapr state need be transmitted in migration. This patch set also takes care of it. Daniel Henrique Barboza (4): hw/ppc/spapr.c: adding pending_dimm_unplugs to sPAPRMachineState hw/ppc: removing drc->detach_cb and drc->detach_cb_opaque hw/ppc: migrating the DRC state of hotplugged devices hw/ppc/spapr.c: recover pending LMB unplug info in spapr_lmb_release Jianjun Duan (1): migration: spapr: migrate ccs_list in spapr state hw/ppc/spapr.c | 138 ++++++++++++++++++++++++++++++++++++++++---- hw/ppc/spapr_drc.c | 88 +++++++++++++++++++++++----- hw/ppc/spapr_pci.c | 5 +- include/hw/pci-host/spapr.h | 3 + include/hw/ppc/spapr.h | 8 +++ include/hw/ppc/spapr_drc.h | 8 +-- 6 files changed, 215 insertions(+), 35 deletions(-) -- 2.9.4