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7524cd893e
This reverts commit 5ac846e42e.
After further discussions with Alon Levy, I learned the following:
The use of '-vga qxl' vs. '-device qxl-vga' is completely orthogonal
to whether ram_size can be exposed. Downstream distros are interested
in backporting support for multi-head qxl, but this can be done in
one of two ways:
1. Support one head per PCI device. If you do this, then it makes
sense to have full control over the PCI address of each device. For
full control, you need '-device qxl-vga' instead of '-vga qxl'.
2. Support multiple heads through a single PCI device. If you do
this, then you need to allocate more RAM to that PCI device (enough
ram to cover the multiple screens). Here, the device is hard-coded
to 0:0:2.0, both in qemu and libvirt code.
Apparently, backporting ram_size changes to allow multiple heads in
a single device is much easier than backporting multiple device
support. Furthermore, the presence or absence of qxl-vga.surfaces
is no different than the presence or absence of qxl-vga.ram_size;
both properties can be applied regardless of whether you have one
PCI device (-vga qxl) or multiple (-device qxl-vga), so this property
is NOT a good witness of whether '-device qxl-vga' support has been
backported.
Downstream RHEL will NOT be using this patch; and worse, leaving this
patch in risks doing the wrong thing if compiling upstream libvirt
on RHEL, so the best course of action is to revert it. That means
that libvirt will go back to only using '-device qxl-vga' for qemu
>= 1.2, but this is just fine because we know of no distros that plan
on backporting multiple PCI address support to any older version of
qemu. Meanwhile, downstream can still use ram_size to pack multiple
heads through a single PCI device.
223 lines
7.9 KiB
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223 lines
7.9 KiB
Plaintext
name "VGA", bus PCI
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name "usb-storage", bus usb-bus
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name "scsi-hd", bus SCSI, desc "virtual SCSI disk"
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name "i82559a", bus PCI, desc "Intel i82559A Ethernet"
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name "i82559b", bus PCI, desc "Intel i82559B Ethernet"
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name "i82559c", bus PCI, desc "Intel i82559C Ethernet"
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name "esp", bus System
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name "sysbus-ohci", bus System, desc "OHCI USB Controller"
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name "virtio-blk-pci", bus PCI, alias "virtio-blk"
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name "usb-uas", bus usb-bus
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name "qxl-vga", bus PCI, desc "Spice QXL GPU (primary, vga compatible)"
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name "ide-drive", bus IDE, desc "virtual IDE disk or CD-ROM (legacy)"
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name "x3130-upstream", bus PCI, desc "TI X3130 Upstream Port of PCI Express Switch"
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name "cirrus-vga", bus PCI, desc "Cirrus CLGD 54xx VGA"
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name "ide-hd", bus IDE, desc "virtual IDE disk"
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name "ES1370", bus PCI, desc "ENSONIQ AudioPCI ES1370"
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name "ioh3420", bus PCI, desc "Intel IOH device id 3420 PCIE Root Port"
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name "sga", bus ISA, desc "Serial Graphics Adapter"
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name "scsi-block", bus SCSI, desc "SCSI block device passthrough"
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name "usb-serial", bus usb-bus
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name "pc-sysfw", bus System, desc "PC System Firmware"
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name "usb-mouse", bus usb-bus
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name "usb-net", bus usb-bus
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name "usb-hub", bus usb-bus
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name "ccid-card-emulated", bus ccid-bus, desc "emulated smartcard"
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name "ne2k_isa", bus ISA
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name "pci-assign", bus PCI
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name "scsi-generic", bus SCSI, desc "pass through generic scsi device (/dev/sg*)"
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name "pcnet", bus PCI
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name "lsi53c895a", bus PCI, alias "lsi"
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name "scsi-disk", bus SCSI, desc "virtual SCSI disk or CD-ROM (legacy)"
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name "hda-micro", bus HDA, desc "HDA Audio Codec, duplex (speaker, microphone)"
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name "pci-ohci", bus PCI, desc "Apple USB Controller"
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name "nec-usb-xhci", bus PCI
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name "xio3130-downstream", bus PCI, desc "TI X3130 Downstream Port of PCI Express Switch"
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name "virtserialport", bus virtio-serial-bus
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name "usb-redir", bus usb-bus
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name "usb-braille", bus usb-bus
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name "scsi-cd", bus SCSI, desc "virtual SCSI CD-ROM"
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name "usb-wacom-tablet", bus usb-bus, desc "QEMU PenPartner Tablet"
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name "isa-serial", bus ISA
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name "i82550", bus PCI, desc "Intel i82550 Ethernet"
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name "i82551", bus PCI, desc "Intel i82551 Ethernet"
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name "isa-debugcon", bus ISA
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name "ide-cd", bus IDE, desc "virtual IDE CD-ROM"
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name "SUNW,fdtwo", bus System
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name "ich9-usb-uhci2", bus PCI
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name "ich9-usb-uhci3", bus PCI
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name "ich9-usb-uhci1", bus PCI
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name "isa-parallel", bus ISA
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name "virtconsole", bus virtio-serial-bus
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name "ne2k_pci", bus PCI
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name "virtio-serial-pci", bus PCI, alias "virtio-serial"
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name "hda-duplex", bus HDA, desc "HDA Audio Codec, duplex (line-out, line-in)"
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name "intel-hda", bus PCI, desc "Intel HD Audio Controller"
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name "megasas", bus PCI, desc "LSI MegaRAID SAS 1078"
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name "i82559er", bus PCI, desc "Intel i82559ER Ethernet"
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name "hda-output", bus HDA, desc "HDA Audio Codec, output-only (line-out)"
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name "i82562", bus PCI, desc "Intel i82562 Ethernet"
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name "sysbus-ahci", bus System
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name "usb-ccid", bus usb-bus, desc "CCID Rev 1.1 smartcard reader"
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name "ivshmem", bus PCI
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name "AC97", bus PCI, desc "Intel 82801AA AC97 Audio"
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name "e1000", bus PCI, desc "Intel Gigabit Ethernet"
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name "sysbus-fdc", bus System
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name "usb-bt-dongle", bus usb-bus
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name "usb-tablet", bus usb-bus
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name "isa-vga", bus ISA
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name "usb-kbd", bus usb-bus
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name "isa-applesmc", bus ISA
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name "rtl8139", bus PCI
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name "qxl", bus PCI, desc "Spice QXL GPU (secondary)"
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name "i82557a", bus PCI, desc "Intel i82557A Ethernet"
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name "i82557c", bus PCI, desc "Intel i82557C Ethernet"
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name "usb-audio", bus usb-bus
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name "ib700", bus ISA
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name "piix3-usb-uhci", bus PCI
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name "i82557b", bus PCI, desc "Intel i82557B Ethernet"
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name "piix4-usb-uhci", bus PCI
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name "ccid-card-passthru", bus ccid-bus, desc "passthrough smartcard"
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name "i82801", bus PCI, desc "Intel i82801 Ethernet"
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name "smbus-eeprom", bus i2c-bus
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name "vmware-svga", bus PCI
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name "dc390", bus PCI, desc "Tekram DC-390 SCSI adapter"
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name "isa-cirrus-vga", bus ISA
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name "sb16", bus ISA, desc "Creative Sound Blaster 16"
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name "am53c974", bus PCI, desc "AMD Am53c974 PCscsi-PCI SCSI adapter"
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name "pci-bridge", bus PCI, desc "Standard PCI Bridge"
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name "i82558a", bus PCI, desc "Intel i82558A Ethernet"
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name "i82558b", bus PCI, desc "Intel i82558B Ethernet"
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name "virtio-net-pci", bus PCI, alias "virtio-net"
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name "virtio-balloon-pci", bus PCI, alias "virtio-balloon"
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name "ich9-usb-ehci1", bus PCI
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name "isa-ide", bus ISA
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name "usb-host", bus usb-bus
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name "ich9-ahci", bus PCI, alias "ahci"
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name "vt82c686b-usb-uhci", bus PCI
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name "usb-ehci", bus PCI
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name "testdev", bus ISA
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name "i6300esb", bus PCI
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name "virtio-scsi-pci", bus PCI
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pci-assign.host=pci-host-devaddr
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pci-assign.prefer_msi=on/off
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pci-assign.share_intx=on/off
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pci-assign.bootindex=int32
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pci-assign.configfd=string
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pci-assign.addr=pci-devfn
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pci-assign.romfile=string
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pci-assign.rombar=uint32
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pci-assign.multifunction=on/off
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pci-assign.command_serr_enable=on/off
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virtio-blk-pci.class=hex32
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virtio-blk-pci.drive=drive
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virtio-blk-pci.logical_block_size=blocksize
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virtio-blk-pci.physical_block_size=blocksize
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virtio-blk-pci.min_io_size=uint16
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virtio-blk-pci.opt_io_size=uint32
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virtio-blk-pci.bootindex=int32
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virtio-blk-pci.discard_granularity=uint32
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virtio-blk-pci.cyls=uint32
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virtio-blk-pci.heads=uint32
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virtio-blk-pci.secs=uint32
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virtio-blk-pci.serial=string
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virtio-blk-pci.scsi=on/off
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virtio-blk-pci.config-wce=on/off
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virtio-blk-pci.ioeventfd=on/off
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virtio-blk-pci.vectors=uint32
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virtio-blk-pci.indirect_desc=on/off
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virtio-blk-pci.event_idx=on/off
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virtio-blk-pci.config-wce=on/off
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virtio-blk-pci.addr=pci-devfn
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virtio-blk-pci.romfile=string
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virtio-blk-pci.rombar=uint32
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virtio-blk-pci.multifunction=on/off
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virtio-blk-pci.command_serr_enable=on/off
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virtio-net-pci.ioeventfd=on/off
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virtio-net-pci.vectors=uint32
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virtio-net-pci.indirect_desc=on/off
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virtio-net-pci.event_idx=on/off
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virtio-net-pci.csum=on/off
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virtio-net-pci.guest_csum=on/off
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virtio-net-pci.gso=on/off
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virtio-net-pci.guest_tso4=on/off
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virtio-net-pci.guest_tso6=on/off
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virtio-net-pci.guest_ecn=on/off
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virtio-net-pci.guest_ufo=on/off
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virtio-net-pci.host_tso4=on/off
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virtio-net-pci.host_tso6=on/off
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virtio-net-pci.host_ecn=on/off
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virtio-net-pci.host_ufo=on/off
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virtio-net-pci.mrg_rxbuf=on/off
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virtio-net-pci.status=on/off
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virtio-net-pci.ctrl_vq=on/off
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virtio-net-pci.ctrl_rx=on/off
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virtio-net-pci.ctrl_vlan=on/off
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virtio-net-pci.ctrl_rx_extra=on/off
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virtio-net-pci.mac=macaddr
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virtio-net-pci.vlan=vlan
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virtio-net-pci.netdev=netdev
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virtio-net-pci.bootindex=int32
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virtio-net-pci.x-txtimer=uint32
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virtio-net-pci.x-txburst=int32
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virtio-net-pci.tx=string
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virtio-net-pci.addr=pci-devfn
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virtio-net-pci.romfile=string
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virtio-net-pci.rombar=uint32
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virtio-net-pci.multifunction=on/off
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virtio-net-pci.command_serr_enable=on/off
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scsi-disk.drive=drive
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scsi-disk.logical_block_size=blocksize
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scsi-disk.physical_block_size=blocksize
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scsi-disk.min_io_size=uint16
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scsi-disk.opt_io_size=uint32
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scsi-disk.bootindex=int32
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scsi-disk.discard_granularity=uint32
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scsi-disk.ver=string
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scsi-disk.serial=string
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scsi-disk.vendor=string
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scsi-disk.product=string
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scsi-disk.removable=on/off
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scsi-disk.dpofua=on/off
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scsi-disk.wwn=hex64
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scsi-disk.channel=uint32
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scsi-disk.scsi-id=uint32
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scsi-disk.lun=uint32
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PIIX4_PM.smb_io_base=uint32
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PIIX4_PM.disable_s3=uint8
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PIIX4_PM.disable_s4=uint8
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PIIX4_PM.s4_val=uint8
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PIIX4_PM.addr=pci-devfn
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PIIX4_PM.romfile=string
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PIIX4_PM.rombar=uint32
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PIIX4_PM.multifunction=on/off
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PIIX4_PM.command_serr_enable=on/off
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usb-redir.chardev=chr
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usb-redir.debug=uint8
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usb-redir.filter=string
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usb-redir.bootindex=int32
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usb-redir.port=string
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usb-redir.full-path=on/off
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ide-drive.drive=drive
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ide-drive.logical_block_size=blocksize
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ide-drive.physical_block_size=blocksize
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ide-drive.min_io_size=uint16
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ide-drive.opt_io_size=uint32
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ide-drive.bootindex=int32
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ide-drive.discard_granularity=uint32
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ide-drive.ver=string
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ide-drive.wwn=hex64
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ide-drive.serial=string
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ide-drive.model=string
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ide-drive.unit=uint32
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usb-host.hostbus=uint32
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usb-host.hostaddr=uint32
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usb-host.hostport=string
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usb-host.vendorid=hex32
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usb-host.productid=hex32
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usb-host.isobufs=uint32
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usb-host.bootindex=int32
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usb-host.pipeline=on/off
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usb-host.port=string
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usb-host.full-path=on/off
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