75ebec11af
This patch adds a new internal "x-mtu-bypass-backend" property to bypass backends for MTU feature negotiation. When this property is set, the MTU feature is negotiated as soon as supported by the guest and a MTU value is set via the host_mtu parameter. In case the backend advertises the feature (e.g. DPDK's vhost-user backend), the feature negotiation is propagated down to the backend. When this property is not set, the backend has to support the MTU feature for its negotiation to succeed. For compatibility purpose, this property is disabled for machine types v2.9 and older. Cc: Aaron Conole <aconole@redhat.com> Suggested-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com> Reviewed-by: Vlad Yasevich <vyasevic@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
217 lines
5.4 KiB
C
217 lines
5.4 KiB
C
#ifndef HW_COMPAT_H
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#define HW_COMPAT_H
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#define HW_COMPAT_2_9 \
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{\
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.driver = "pci-bridge",\
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.property = "shpc",\
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.value = "off",\
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},{\
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.driver = "intel-iommu",\
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.property = "pt",\
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.value = "off",\
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},{\
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.driver = "virtio-net-device",\
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.property = "x-mtu-bypass-backend",\
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.value = "off",\
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},
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#define HW_COMPAT_2_8 \
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{\
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.driver = "fw_cfg_mem",\
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.property = "x-file-slots",\
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.value = stringify(0x10),\
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},{\
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.driver = "fw_cfg_io",\
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.property = "x-file-slots",\
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.value = stringify(0x10),\
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},{\
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.driver = "pflash_cfi01",\
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.property = "old-multiple-chip-handling",\
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.value = "on",\
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},{\
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.driver = "pci-bridge",\
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.property = "shpc",\
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.value = "on",\
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},{\
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.driver = TYPE_PCI_DEVICE,\
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.property = "x-pcie-extcap-init",\
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.value = "off",\
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},{\
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.driver = "virtio-pci",\
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.property = "x-pcie-deverr-init",\
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.value = "off",\
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},{\
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.driver = "virtio-pci",\
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.property = "x-pcie-lnkctl-init",\
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.value = "off",\
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},{\
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.driver = "virtio-pci",\
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.property = "x-pcie-pm-init",\
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.value = "off",\
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},{\
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.driver = "cirrus-vga",\
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.property = "vgamem_mb",\
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.value = "8",\
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},{\
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.driver = "isa-cirrus-vga",\
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.property = "vgamem_mb",\
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.value = "8",\
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},
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#define HW_COMPAT_2_7 \
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{\
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.driver = "virtio-pci",\
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.property = "page-per-vq",\
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.value = "on",\
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},{\
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.driver = "virtio-serial-device",\
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.property = "emergency-write",\
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.value = "off",\
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},{\
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.driver = "ioapic",\
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.property = "version",\
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.value = "0x11",\
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},{\
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.driver = "intel-iommu",\
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.property = "x-buggy-eim",\
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.value = "true",\
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},{\
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.driver = "virtio-pci",\
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.property = "x-ignore-backend-features",\
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.value = "on",\
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},
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#define HW_COMPAT_2_6 \
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{\
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.driver = "virtio-mmio",\
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.property = "format_transport_address",\
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.value = "off",\
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},{\
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.driver = "virtio-pci",\
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.property = "disable-modern",\
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.value = "on",\
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},{\
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.driver = "virtio-pci",\
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.property = "disable-legacy",\
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.value = "off",\
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},
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#define HW_COMPAT_2_5 \
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{\
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.driver = "isa-fdc",\
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.property = "fallback",\
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.value = "144",\
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},{\
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.driver = "pvscsi",\
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.property = "x-old-pci-configuration",\
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.value = "on",\
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},{\
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.driver = "pvscsi",\
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.property = "x-disable-pcie",\
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.value = "on",\
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},\
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{\
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.driver = "vmxnet3",\
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.property = "x-old-msi-offsets",\
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.value = "on",\
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},{\
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.driver = "vmxnet3",\
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.property = "x-disable-pcie",\
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.value = "on",\
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},
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#define HW_COMPAT_2_4 \
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{\
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.driver = "virtio-blk-device",\
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.property = "scsi",\
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.value = "true",\
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},{\
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.driver = "e1000",\
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.property = "extra_mac_registers",\
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.value = "off",\
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},{\
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.driver = "virtio-pci",\
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.property = "x-disable-pcie",\
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.value = "on",\
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},{\
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.driver = "virtio-pci",\
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.property = "migrate-extra",\
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.value = "off",\
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},{\
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.driver = "fw_cfg_mem",\
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.property = "dma_enabled",\
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.value = "off",\
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},{\
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.driver = "fw_cfg_io",\
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.property = "dma_enabled",\
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.value = "off",\
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},{\
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.driver = "vmgenid",\
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.property = "x-write-pointer-available",\
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.value = "off",\
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},
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#define HW_COMPAT_2_3 \
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{\
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.driver = "virtio-blk-pci",\
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.property = "any_layout",\
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.value = "off",\
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},{\
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.driver = "virtio-balloon-pci",\
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.property = "any_layout",\
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.value = "off",\
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},{\
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.driver = "virtio-serial-pci",\
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.property = "any_layout",\
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.value = "off",\
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},{\
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.driver = "virtio-9p-pci",\
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.property = "any_layout",\
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.value = "off",\
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},{\
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.driver = "virtio-rng-pci",\
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.property = "any_layout",\
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.value = "off",\
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},{\
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.driver = TYPE_PCI_DEVICE,\
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.property = "x-pcie-lnksta-dllla",\
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.value = "off",\
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},
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#define HW_COMPAT_2_2 \
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/* empty */
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#define HW_COMPAT_2_1 \
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{\
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.driver = "intel-hda",\
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.property = "old_msi_addr",\
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.value = "on",\
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},{\
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.driver = "VGA",\
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.property = "qemu-extended-regs",\
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.value = "off",\
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},{\
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.driver = "secondary-vga",\
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.property = "qemu-extended-regs",\
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.value = "off",\
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},{\
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.driver = "virtio-scsi-pci",\
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.property = "any_layout",\
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.value = "off",\
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},{\
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.driver = "usb-mouse",\
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.property = "usb_version",\
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.value = stringify(1),\
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},{\
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.driver = "usb-kbd",\
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.property = "usb_version",\
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.value = stringify(1),\
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},{\
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.driver = "virtio-pci",\
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.property = "virtio-pci-bus-master-bug-migration",\
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.value = "on",\
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},
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#endif /* HW_COMPAT_H */
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