| Message ID | 20210909060613.2815-1-longpeng2@huawei.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | optimize the downtime for vfio migration | expand |
Hi guys, Ping... I just sent out V3, please review on V3, thanks! 在 2021/9/9 14:06, Longpeng(Mike) 写道: > Hi guys, > > In vfio migration resume phase, the cost would increase if the > vfio device has more unmasked vectors. We try to optimize it in > this series. > > You can see the commit message in PATCH 9 for details. > > Patch 1-5 are simple cleanups and fixup. > Patch 6-8 are the preparations for the optimization. > Patch 9 optimizes the vfio msix setup path. > > Changes v1->v2: > - fix several typos and grammatical errors [Alex, Philippe] > - split fixups and cleanups into separate patches [Alex, Philippe] > - introduce kvm_irqchip_add_deferred_msi_route to > minimize code changes [Alex] > - enable the optimization in msi setup path [Alex] > > Longpeng (Mike) (9): > vfio: simplify the conditional statements in vfio_msi_enable > vfio: move re-enabling INTX out of the common helper > vfio: simplify the failure path in vfio_msi_enable > msix: simplify the conditional in msix_set/unset_vector_notifiers > msix: reset poll_notifier to NULL if fail to set notifiers > kvm: irqchip: extract kvm_irqchip_add_deferred_msi_route > vfio: add infrastructure to commit the deferred kvm routing > Revert "vfio: Avoid disabling and enabling vectors repeatedly in VFIO > migration" > vfio: defer to commit kvm irq routing when enable msi/msix > > accel/kvm/kvm-all.c | 15 ++++++- > hw/pci/msix.c | 7 ++- > hw/vfio/pci.c | 125 +++++++++++++++++++++++++++++++++------------------ > hw/vfio/pci.h | 1 + > include/sysemu/kvm.h | 6 +++ > 5 files changed, 105 insertions(+), 49 deletions(-) >
Hi guys, In vfio migration resume phase, the cost would increase if the vfio device has more unmasked vectors. We try to optimize it in this series. You can see the commit message in PATCH 9 for details. Patch 1-5 are simple cleanups and fixup. Patch 6-8 are the preparations for the optimization. Patch 9 optimizes the vfio msix setup path. Changes v1->v2: - fix several typos and grammatical errors [Alex, Philippe] - split fixups and cleanups into separate patches [Alex, Philippe] - introduce kvm_irqchip_add_deferred_msi_route to minimize code changes [Alex] - enable the optimization in msi setup path [Alex] Longpeng (Mike) (9): vfio: simplify the conditional statements in vfio_msi_enable vfio: move re-enabling INTX out of the common helper vfio: simplify the failure path in vfio_msi_enable msix: simplify the conditional in msix_set/unset_vector_notifiers msix: reset poll_notifier to NULL if fail to set notifiers kvm: irqchip: extract kvm_irqchip_add_deferred_msi_route vfio: add infrastructure to commit the deferred kvm routing Revert "vfio: Avoid disabling and enabling vectors repeatedly in VFIO migration" vfio: defer to commit kvm irq routing when enable msi/msix accel/kvm/kvm-all.c | 15 ++++++- hw/pci/msix.c | 7 ++- hw/vfio/pci.c | 125 +++++++++++++++++++++++++++++++++------------------ hw/vfio/pci.h | 1 + include/sysemu/kvm.h | 6 +++ 5 files changed, 105 insertions(+), 49 deletions(-)