Qdev status - Revision history

MarkusArmbruster: Update for v0.12.0-rc2

2009-12-15T13:04:00Z

Update for v0.12.0-rc2

← Older revision		Revision as of 09:04, 15 December 2009
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	** Host side: -chardev pty,id=<name>		** Host side: -chardev pty,id=<name>
	** Guest side: -device isa-serial,chardev=<name>		** Guest side: -device isa-serial,chardev=<name>
	** A few small issues remain, e.g. -device isa-serial still requires -serial none to work. See "default optional devices" below.

	* NICs done		* NICs done
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	* ISA FDC, PS/2 keyboard & mouse, RTC, serial, parallel done		* ISA FDC, PS/2 keyboard & mouse, RTC, serial, parallel done

	* VGA done (all variants, ISA & PCI), but:		* VGA done (all variants, ISA & PCI), but doesn't work, because it needs to be initialized before i440fx_init_memory_mappings() runs.
	** Still requires -vga none, see "default optional devices" below.
	** Doesn't work, because it needs to be initialized before i440fx_init_memory_mappings() runs.

	* NICs done, but see "default optional devices" below		* NICs done, but see "default optional devices" below
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	=== Default optional devices ===		=== Default optional devices ===

	QEMU creates a bunch of optional devices (NIC, CD-ROM, VGA, ...). ~~Some of them can be~~ suppressed~~, some not. Default devices get in the way~~ when you ~~work~~ with -device & friends. ~~For instance, ide1/master is untouchable, because QEMU insists on putting a~~ CD-ROM ~~there~~. ~~Patch posted~~.		QEMU creates a bunch of optional devices (NIC, CD-ROM, VGA, ...). They get automatically suppressed when you specify your own with -device & friends. Except NIC and CD-ROM (ide.1/master) don't. Work-around: suppress all optional devices with -nodefaults.

	=== Configuration file ===		=== Configuration file ===

MarkusArmbruster at 14:02, 24 November 2009

2009-11-24T14:02:11Z

← Older revision		Revision as of 10:02, 24 November 2009
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	* ISA FDC, PS/2 keyboard & mouse, RTC, serial, parallel done		* ISA FDC, PS/2 keyboard & mouse, RTC, serial, parallel done
	* Working on nicer defaults for -device serial and parallel

	* VGA done (all variants, ISA & PCI), ~~except for ROMs (~~see "~~option ROMs~~" below)		* VGA done (all variants, ISA & PCI), but:
			** Still requires -vga none, see "default optional devices" below.
			** Doesn't work, because it needs to be initialized before i440fx_init_memory_mappings() runs.

	* NICs ~~partly converted~~, ~~missing are host/guest split (see above) and boot ROMs (~~see "~~option ROMs~~" below)		* NICs done, but see "default optional devices" below

	* Audio done, except for a few rarely used ISA devices		* Audio done, except for a few rarely used ISA devices
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	* SCSI done		* SCSI done

	* USB HID (tablet, mouse, keyboard), storage, hub ~~done.~~		* USB HID (tablet, mouse, keyboard), storage, hub, host (pass-through), serial, braille done
	* USB serial, net, host (pass-through) serial ~~partly~~ converted.		* USB net patch posted
			* USB bt (Bluetooth) not converted
			* No way to ensure stable USB addresses

	* IDE disks done, but see "default optional devices" below		* IDE disks done, but see "default optional devices" below
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	* Bluetooth not converted		* Bluetooth not converted

	* Option ROMs ~~not~~ done~~, but getting very close~~		* Option ROMs done

	=== Default optional devices ===		=== Default optional devices ===

	QEMU creates a bunch of optional devices (NIC, CD-ROM, VGA, ...). Some of them can be suppressed, some not. Default devices get in the way when you work with -device & friends. For instance, ide1/master is untouchable, because QEMU insists on putting a CD-ROM there. ~~Being discussed upstream~~.		QEMU creates a bunch of optional devices (NIC, CD-ROM, VGA, ...). Some of them can be suppressed, some not. Default devices get in the way when you work with -device & friends. For instance, ide1/master is untouchable, because QEMU insists on putting a CD-ROM there. Patch posted.

			=== Configuration file ===

			qdev options (and many others) can be read from a configuration file. -FOO VAR="VAL" becomes
			[FOO]
			VAR = "VAL"
			Option -readconfig FILE reads configuration from FILE, and -writeconfig FILE writes the current configuration to FILE. Needs more testing.

	=== Hot plug ===		=== Hot plug ===
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	Still need equivalents to -chardev and future -netdev (what drive_add is to -drive).		Still need equivalents to -chardev and future -netdev (what drive_add is to -drive).

			Nice to have, perhaps: info config like -writeconfig.

	=== Resources ===		=== Resources ===

	Gerd's [http://repo.or.cz/w/qemu/kraxel.git git tree]		Gerd's [http://repo.or.cz/w/qemu/kraxel.git git tree]

MarkusArmbruster: NIC host/guest split update

2009-10-26T12:19:08Z

NIC host/guest split update

← Older revision		Revision as of 08:19, 26 October 2009
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	** A few small issues remain, e.g. -device isa-serial still requires -serial none to work. See "default optional devices" below.		** A few small issues remain, e.g. -device isa-serial still requires -serial none to work. See "default optional devices" below.

	* NICs ~~are still in RFC stage. Gerd and Mark posted patches for discussion. Mark proposed~~ -netdev, ~~similar in spirit to~~ -~~chardev.~~		* NICs done
			** Host side: -netdev type=tap,id=<name>,fd=<tapfd>
			** Guest side: -device virtio-net-pci,netdev=<name>
			** Note that -netdev doesn't support VLANs

	=== PC driver conversion status ===		=== PC driver conversion status ===

MarkusArmbruster: Fix typo

2009-10-22T16:42:34Z

Fix typo

← Older revision		Revision as of 12:42, 22 October 2009
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	* Character devices done		* Character devices done
	** Host side: -chardev pty,id=<name>		** Host side: -chardev pty,id=<name>
	** Guest side: -device isa-serial,~~chr~~=<name>		** Guest side: -device isa-serial,chardev=<name>
	** A few small issues remain, e.g. -device isa-serial still requires -serial none to work. See "default optional devices" below.		** A few small issues remain, e.g. -device isa-serial still requires -serial none to work. See "default optional devices" below.

MarkusArmbruster: qdev status as of 2009-10-14

2009-10-21T12:02:29Z

qdev status as of 2009-10-14

New page

= qdev Status =

qdev is a QEMU-internal API for device configuration and creation. It's the machinery that makes -device and device_add / device_del possible. Devices are being converted to qdev, and qdev evolves along with that. This page tracks how far we got, and what's still left to do.

=== Host/guest split ===

* Drives done
** Host side: -drive if=none,id=<name>,<parameters>
** Guest side: -device virtio-blk-pci,drive=<name>

* Character devices done
** Host side: -chardev pty,id=<name>
** Guest side: -device isa-serial,chr=<name>
** A few small issues remain, e.g. -device isa-serial still requires -serial none to work. See "default optional devices" below.

* NICs are still in RFC stage. Gerd and Mark posted patches for discussion. Mark proposed -netdev, similar in spirit to -chardev.

=== PC driver conversion status ===

* PIC, APIC, CPUs, memory not converted
* i440FX/PIIX3 done (host bridge, ISA bridge, USB, IDE) except for ACPI (PIIX3 function 3)

* ISA FDC, PS/2 keyboard & mouse, RTC, serial, parallel done
* Working on nicer defaults for -device serial and parallel

* VGA done (all variants, ISA & PCI), except for ROMs (see "option ROMs" below)

* NICs partly converted, missing are host/guest split (see above) and boot ROMs (see "option ROMs" below)

* Audio done, except for a few rarely used ISA devices

* Virtio done, except virtio-console still needs chardev hooked up (Amit's working on it as part of vmchannel)

* SCSI done

* USB HID (tablet, mouse, keyboard), storage, hub done.
* USB serial, net, host (pass-through) serial partly converted.

* IDE disks done, but see "default optional devices" below

* Watchdogs done

* Bluetooth not converted

* Option ROMs not done, but getting very close

=== Default optional devices ===

QEMU creates a bunch of optional devices (NIC, CD-ROM, VGA, ...). Some of them can be suppressed, some not. Default devices get in the way when you work with -device & friends. For instance, ide1/master is untouchable, because QEMU insists on putting a CD-ROM there. Being discussed upstream.

=== Hot plug ===

device_add / device_del are on par with -device: Any device you can create with -device you can hot-plug with device_add / device_del. As long as it's hot-pluggable, of course.

drive_add is on par with -drive. May still need drive_del.

Still need equivalents to -chardev and future -netdev (what drive_add is to -drive).

=== Resources ===

Gerd's [http://repo.or.cz/w/qemu/kraxel.git git tree]