![]() split-wx=on|off Controls the use of split w^x mapping for the TCG code generationīuffer. kvm-shadow-mem=size Defines the size of the KVM shadow MMU. Is not recommended except for debugging purposes. Disabling the in-kernel irqchip completely Reduces the kernel attack surface, at a performance cost for The default is fullĪcceleration of the interrupt controllers. (default=off) kernel-irqchip=on|off|split Controls KVM in-kernel irqchip support. Integrated graphics devices can be passed through to the guest igd-passthru=on|off When Xen is in use, this option controls whether Intel Depending on the targetĪrchitecture, kvm, xen, hax, hvf, nvmm, whpx or tcg can be available. cpu model Select CPU model ( -cpu help for list and additional feature This feature can be used to disable hardware virtual assists interleave - granularity = 512 k zpcii-disable=on|off Disables zPCI interpretation facilties on s390-ccw hosts. Interleave-granularity=granularity sets the granularity of The region will be aligned to 256MiB but the location is The fixed memory window represents interleaved memory. Multiple entries are needed to specify all the targets when Which may be identified by the id provied in the -device entry. Targets.X=target provides the mapping to CXL host bridges Interleave requirements before enabling the memory devices. In root ports, switch ports and devices appropriately to meet the Software will assign particular devices into these windows andĬonfigure the downstream Host-managed Device Memory (HDM) decoders May be interleaved across one or more CXL host bridges. They are regions of Host Physical Addresses (HPA) on a system which ram - m 512 M cxl-fmw.0.targets.0=firsttarget,cxl-fmw.0.targets.1=secondtarget,cxl-fmw.0.size=sizeĭescribed in the CXL 2.0 ECN: CEDT CFMWS & QTG _DSM. ram, size = 512 M, x - use - canonical - path - for - ramblock - id = off - machine memory - backend = pc. object memory - backend - ram, id = pc. memory-backend='id'Īn alternative to legacy -mem-path and mem-prealloc options.Īllows to use a memory backend as main RAM. hmat=on|off Enables or disables ACPI Heterogeneous Memory Attribute Table memory-encryption= Memory encryption object to use. nvdimm=on|off Enables or disables NVDIMM support. To allow execution of DEA cryptographic functions. This feature controls whether DEA wrapping keys will be created dea-key-wrap=on|off Enables or disables DEA key wrapping support on s390-ccw hosts. To allow execution of AES cryptographic functions. This feature controls whether AES wrapping keys will be created aes-key-wrap=on|off Enables or disables AES key wrapping support on s390-ccw hosts. Supported by the host, de-duplicates identical memory pagesĪmong VMs instances (enabled by default). mem-merge=on|off Enables or disables memory merge support. dump-guest-core=on|off Include guest memory in a core dump. vmport=on|off|auto Enables emulation of VMWare IO port, for vmmouse etc. Specified, the next one is used if the previous one fails to Depending on the targetĪrchitecture, kvm, xen, hax, hvf, nvmm, whpx or tcg can be available.īy default, tcg is used. Supported machine properties are: accel=accels1] This is used to enable an accelerator. QEMU will support machine types from many previous versions. Skip multiple intermediate releases when upgrading, new releases of ![]() To allow live migration of guests from QEMU version 2.8.0, to QEMU For example, the 2.8.0 release introduced machine types Use -machine help to listįor architectures which aim to support live migration compatibilityĪcross releases, each release will introduce a new versioned machine Standard options ¶ -h Display help and exit -version Display version information and exit -machine name]
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