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[Qemu-devel] [PATCH 0/6] virtio pci 1.0 optimizations and fixes
From: |
Jason Wang |
Subject: |
[Qemu-devel] [PATCH 0/6] virtio pci 1.0 optimizations and fixes |
Date: |
Fri, 21 Aug 2015 17:05:44 +0800 |
Hi all:
This series tries to fix the following issues:
- 1.0 mmio is slow. Fixing this by usinng wildcard mmio eventfd, then
we could get speed up through kernel fast mmio bus on ept capable
machine.
- 1.0 mmio is slow compared to pio. Fixing this by re-introducing pio
notification capability. This will be useful for the arch/setups
that fast mmio does not work.
- Some virtio pci 1.0 fields were not migrated. This will cause
unexpected behaviour if migrate during driver initialization. Fixing
this by introduce a transport specific callback and get/put
transport specific fields for virtio 1.0.
- queue_enable read was broken. Fixing by set the queue_enable to true
during guest write and clear it during reset.
Please review.
Thanks
Jason Wang (6):
pc: introduce 2.5 machine type
ppc: spapr: introduce 2.5 machine type
virtio-pci: fix 1.0 virtqueue migration
virtio-pci: use wildcard mmio eventfd for 1.0 notification cap
virtio-pci: introduce pio notification capability for modern device
virtio-pci: unbreak queue_enable read
hw/i386/pc_piix.c | 21 ++++-
hw/i386/pc_q35.c | 23 ++++-
hw/ppc/spapr.c | 40 +++++++-
hw/virtio/virtio-pci.c | 206 ++++++++++++++++++++++++++++++++++++-----
hw/virtio/virtio-pci.h | 30 ++++--
hw/virtio/virtio.c | 58 ++++++++++++
include/hw/compat.h | 7 ++
include/hw/i386/pc.h | 3 +
include/hw/virtio/virtio-bus.h | 3 +
9 files changed, 357 insertions(+), 34 deletions(-)
--
2.1.4
- [Qemu-devel] [PATCH 0/6] virtio pci 1.0 optimizations and fixes,
Jason Wang <=