distance is the NUMAĭistance from source to destination. Source and destination are NUMA node IDs. numa node,nodeid=1,memdev=m1,initiator=0 \ object memory-backend-ram,size=1G,id=m1 \ object memory-backend-ram,size=1G,id=m0 \ If ' cpus' is omitted onĪll nodes, VCPUs are automatically split between them.įor example, the following option assigns VCPUs 0, 1, 2 and 5 A non-contiguous set of VCPUs can be represented by Represent a contiguous range of CPU indexes (or a single VCPU if lastcpu Legacy VCPU assignment uses ' cpus' option whereįirstcpu and lastcpu are CPU indexes. Set the NUMA distanceįrom a source node to a destination node. Hmat-cache,node-id=node,size=size,level=level Define a NUMA node and assign RAM and VCPUs to it. Hmat-lb,initiator=node,target=node,hierarchy=hierarchy,data-type=tpye Node]ĭist,src=source,dst=destination,val=distanceĬpu,node-id=node Is given, the total number of CPUs n can be omitted.
Qemu system arm no output Pc#
On Sparc32 target, Linux limits the number of usable CPUs to 4.įor the PC target, the number of cores per die, the number of threads perĬores, the number of dies per packages and the total number of sockets canīe specified. The default is to enable multi-threading where both the back-endĪnd front-ends support it and no incompatible TCG features have been When the TCG is multi-threaded there willīe one thread per vCPU therefore taking advantage of additional hostĬores. thread=single|multi Controls number of TCG threads. tb-size=n Controls the size (in MiB) of the TCG translation block cache. kvm-shadow-mem=size Defines the size of the KVM shadow MMU. The in-kernel irqchip completely is not recommended except for debugging On x86, split irqchip reduces the kernelĪttack surface, at a performance cost for non-MSI interrupts. Igd-passthru=on|off When Xen is in use, this option controls whether Intel integrated graphicsĭevices can be passed through to the guest (default=off) kernel-irqchip=on|off|split Controls KVM in-kernel irqchip support.
Next one is used if the previous one fails to initialize.
Name] This is used to enable an accelerator. Model Select CPU model ( -cpu help for list and additional feature hmat=on|off Enables or disables ACPI Heterogeneous Memory Attribute Table (HMAT) memory-encryption= Memory encryption object to use. nvdimm=on|off Enables or disables NVDIMM support. Thisįeature controls whether DEA wrapping keys will be created to allowĮxecution of DEA cryptographic functions. dea-key-wrap=on|off Enables or disables DEA key wrapping support on s390-ccw hosts. Thisįeature controls whether AES wrapping keys will be created to allowĮxecution of AES cryptographic functions. aes-key-wrap=on|off Enables or disables AES key wrapping support on s390-ccw hosts.
The host, de-duplicates identical memory pages among VMs instances mem-merge=on|off Enables or disables memory merge support. dump-guest-core=on|off Include guest memory in a core dump. For accel=xen the default is off otherwise theĭefault is on. vmport=on|off|auto Enables emulation of VMWare IO port, for vmmouse etc. If there is more than one accelerator specified, the Depending on the targetĪrchitecture, kvm, xen, hax, hvf, whpx or tcg can be available. So QEMU must be told to not have parallel ports to have working GUS.Īccel=accels1] This is used to enable an accelerator. Note that, by default, GUS shares IRQ(7) with parallel ports and QEMU uses YM3812 emulation by Tatsuyuki Satoh. QEMU uses the PC BIOS from the Seabios project and the PCI UHCI, OHCI, EHCI or XHCI USB controller and a virtual USB-1.1.Adlib (OPL2) - Yamaha YM3812 compatible chip.Intel HD Audio Controller and HDA codec.Intel 82801AA AC97 Audio compatible sound card.IPMI BMC, either and internal or external one.2 PCI IDE interfaces with hard disk and CD-ROM support.(hardware level, including all non standard modes). Cirrus CLGD 5446 PCI VGA card or dummy VGA card with Bochs VESA extensions.i440FX host PCI bridge and PIIX3 PCI to ISA bridge.
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