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[PATCH 0/6] virtio-scsi: fix 100% CPU consumption in IOThread


From: Stefan Hajnoczi
Subject: [PATCH 0/6] virtio-scsi: fix 100% CPU consumption in IOThread
Date: Wed, 27 Apr 2022 15:35:35 +0100

Nir Soffer reported that virtio-scsi,iothread=... consumes 100% CPU in QEMU
7.0. This patch series addresses two bugs in hw/scsi/virtio-scsi.c (see patches
1 & 2) and follows up with code cleanups.

Stefan Hajnoczi (6):
  virtio-scsi: fix ctrl and event handler functions in dataplane mode
  virtio-scsi: don't waste CPU polling the event virtqueue
  virtio-scsi: clean up virtio_scsi_handle_event_vq()
  virtio-scsi: clean up virtio_scsi_handle_ctrl_vq()
  virtio-scsi: clean up virtio_scsi_handle_cmd_vq()
  virtio-scsi: move request-related items from .h to .c

 include/hw/virtio/virtio-scsi.h |  43 --------------
 include/hw/virtio/virtio.h      |   1 +
 hw/scsi/virtio-scsi-dataplane.c |   2 +-
 hw/scsi/virtio-scsi.c           | 101 ++++++++++++++++++++++----------
 hw/virtio/virtio.c              |  13 ++++
 5 files changed, 86 insertions(+), 74 deletions(-)

-- 
2.35.1




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