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7b6702d516
qemu supports this enlightenment since version 7.10.
From the qemu commit:
Hyper-V specification allows to pass parameters for certain hypercalls
using XMM registers ("XMM Fast Hypercall Input"). When the feature is
in use, it allows for faster hypercalls processing as KVM can avoid
reading guest's memory.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
52 lines
1.5 KiB
XML
52 lines
1.5 KiB
XML
<domain type='qemu'>
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<name>QEMUGuest1</name>
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<uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
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<memory unit='KiB'>219100</memory>
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<currentMemory unit='KiB'>219100</currentMemory>
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<vcpu placement='static'>6</vcpu>
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<os>
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<type arch='x86_64' machine='pc'>hvm</type>
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<boot dev='network'/>
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</os>
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<features>
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<acpi/>
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<hyperv mode='custom'>
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<relaxed state='on'/>
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<vapic state='on'/>
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<spinlocks state='on' retries='12287'/>
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<vpindex state='on'/>
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<runtime state='on'/>
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<synic state='on'/>
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<stimer state='on'/>
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<reset state='on'/>
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<vendor_id state='on' value='KVM Hv'/>
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<frequencies state='on'/>
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<reenlightenment state='on'/>
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<tlbflush state='on'/>
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<ipi state='on'/>
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<evmcs state='on'/>
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<avic state='on'/>
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<emsr_bitmap state='on'/>
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<xmm_input state='on'/>
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</hyperv>
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</features>
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<cpu mode='custom' match='exact' check='none'>
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<model fallback='forbid'>qemu64</model>
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</cpu>
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<clock offset='utc'/>
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<on_poweroff>destroy</on_poweroff>
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<on_reboot>restart</on_reboot>
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<on_crash>destroy</on_crash>
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<devices>
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<emulator>/usr/bin/qemu-system-x86_64</emulator>
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<controller type='usb' index='0' model='piix3-uhci'>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
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</controller>
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<controller type='pci' index='0' model='pci-root'/>
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<input type='mouse' bus='ps2'/>
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<input type='keyboard' bus='ps2'/>
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<audio id='1' type='none'/>
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<memballoon model='none'/>
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</devices>
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</domain>
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