QEMU's PIIX3 implementation actually models the real PIIX4, but with different PCI IDs. Usually, guests deal just fine with it. Still, in order to provide a more consistent illusion to guests, allow QEMU's PIIX4 implementation to be used in the PC machine. Signed-off-by: Bernhard Beschow <shentey@gmail.com> Message-Id: <20231007123843.127151-30-shentey@gmail.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
		
			
				
	
	
		
			82 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
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			82 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
The QEMU PC System emulator simulates the following peripherals:
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-  i440FX host PCI bridge and PIIX3 PCI to ISA bridge
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-  Cirrus CLGD 5446 PCI VGA card or dummy VGA card with Bochs VESA
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   extensions (hardware level, including all non standard modes).
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-  PS/2 mouse and keyboard
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-  2 PCI IDE interfaces with hard disk and CD-ROM support
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-  Floppy disk
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-  PCI and ISA network adapters
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-  Serial ports
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-  IPMI BMC, either and internal or external one
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-  Creative SoundBlaster 16 sound card
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-  ENSONIQ AudioPCI ES1370 sound card
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-  Intel 82801AA AC97 Audio compatible sound card
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-  Intel HD Audio Controller and HDA codec
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-  Adlib (OPL2) - Yamaha YM3812 compatible chip
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-  Gravis Ultrasound GF1 sound card
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-  CS4231A compatible sound card
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-  PC speaker
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-  PCI UHCI, OHCI, EHCI or XHCI USB controller and a virtual USB-1.1
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   hub.
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SMP is supported with up to 255 CPUs.
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QEMU uses the PC BIOS from the Seabios project and the Plex86/Bochs LGPL
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VGA BIOS.
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QEMU uses YM3812 emulation by Tatsuyuki Satoh.
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QEMU uses GUS emulation (GUSEMU32 http://www.deinmeister.de/gusemu/) by
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Tibor \"TS\" Schütz.
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Note that, by default, GUS shares IRQ(7) with parallel ports and so QEMU
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must be told to not have parallel ports to have working GUS.
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.. parsed-literal::
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   |qemu_system_x86| dos.img -device gus -parallel none
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Alternatively:
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.. parsed-literal::
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   |qemu_system_x86| dos.img -device gus,irq=5
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Or some other unclaimed IRQ.
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CS4231A is the chip used in Windows Sound System and GUSMAX products
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The PC speaker audio device can be configured using the pcspk-audiodev
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machine property, i.e.
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.. parsed-literal::
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   |qemu_system_x86| some.img \
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   -audiodev <backend>,id=<name> \
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   -machine pcspk-audiodev=<name>
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Machine-specific options
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~~~~~~~~~~~~~~~~~~~~~~~~
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It supports the following machine-specific options:
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- ``x-south-bridge=PIIX3|piix4-isa`` (Experimental option to select a particular
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  south bridge. Default: ``PIIX3``)
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