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[Qemu-devel] [RFC v5 0/4] vITS save/restore
From: |
Eric Auger |
Subject: |
[Qemu-devel] [RFC v5 0/4] vITS save/restore |
Date: |
Fri, 14 Apr 2017 14:46:31 +0200 |
This series allows ITS save/restore and migration use cases.
It relies on not upstreamed kernel series [1].
ITS tables are flushed into guest RAM on VM stop while registers
are save on pre_save() callback. Tables and registers are restored
on ITS post_load().
Redistributor pending tables also are flushed on VM stop, independently
on ITS tables.
That work was tested on Cavium ThunderX using virsh save/restore and
virt-manager live migration.
Best Regards
Eric
Host Kernel dependencies:
- [1] [PATCH v5 00/22] vITS save/restore
History:
v4 -> v5:
- adapt to the new user API
- new patch "hw/intc/arm_gicv3_kvm: Implement pending table save"
as the pending table save now is handled on GICV3 side.
v3 -> v4:
- oversight in v3, missed a last minute correction related to
reg useless declaration in kvm_arm_its_pre_save
v2 -> v3:
- GITS_IIDR is now saved and restored to check ABI revision.
- get/put functions renamed into pre_save/post_load
- unmigratable = false removed
- changed the migration blocker message
- remove the extract64 round s->ctlr
- reword some comments
v1 -> v2:
- rebase on 2.9 soft release code
- handle case where migrate_add_blocker fails
- add comments along with ITS and GICv3 migration priorities
Eric Auger (4):
linux-headers: Update for vITS save/restore
hw/intc/arm_gicv3_its: Implement state save/restore
hw/intc/arm_gicv3_kvm: Implement pending table save
hw/intc/arm_gicv3_its: Allow save/restore
hw/intc/arm_gicv3_common.c | 1 +
hw/intc/arm_gicv3_its_common.c | 11 ++-
hw/intc/arm_gicv3_its_kvm.c | 120 +++++++++++++++++++++++++++++----
hw/intc/arm_gicv3_kvm.c | 25 +++++++
include/hw/intc/arm_gicv3_its_common.h | 8 +++
include/migration/vmstate.h | 2 +
linux-headers/asm-arm/kvm.h | 6 +-
linux-headers/asm-arm64/kvm.h | 6 +-
8 files changed, 164 insertions(+), 15 deletions(-)
--
2.5.5
- [Qemu-devel] [RFC v5 0/4] vITS save/restore,
Eric Auger <=
- [Qemu-devel] [RFC v5 1/4] linux-headers: Update for vITS save/restore, Eric Auger, 2017/04/14
- [Qemu-devel] [RFC v5 2/4] hw/intc/arm_gicv3_its: Implement state save/restore, Eric Auger, 2017/04/14
- [Qemu-devel] [RFC v5 4/4] hw/intc/arm_gicv3_its: Allow save/restore, Eric Auger, 2017/04/14
- [Qemu-devel] [RFC v5 3/4] hw/intc/arm_gicv3_kvm: Implement pending table save, Eric Auger, 2017/04/14
- Re: [Qemu-devel] [RFC v5 0/4] vITS save/restore, Prakash B, 2017/04/26