hi, I am using libvirt tool to create instance like below virt-install --virt-type kvm --name compute-0 --cpu host --ram=61440 ....
And when i check the KVM process under host this which is doing this Job ..it as as below usr/libexec/qemu-kvm -name compute-0 -S -machine pc-i440fx-rhel7.0.0,accel=kvm,usb=off -cpu SandyBridge,+vme,+ds,+acpi,+ss,+ht,+tm,+pbe,+dtes64,+monitor,+ds_cpl,+vmx,+smx,+est,+tm2,+xtpr,+pdcm,+pcid,+dca,+osxsave,+arat,+xsaveopt,+pdpe1gb -m 61440 On Mon, Feb 6, 2017 at 4:59 PM, Narcis Garcia <[email protected]> wrote: > How did you get that translation from "qemu -cpu host" to "...-cpu > SandyBridge,+vme,+ds,+acpi,+ss,..." ? > > > El 06/02/17 a les 12:15, akhilesh rawat ha escrit: > > thanks , but if you see the guest which was run as > > > > > > qemu -cpu host > > > > > > has auto generated model as SandyBridge in KVM process. > > > > usr/libexec/qemu-kvm -name compute-0 -S -machine > > pc-i440fx-rhel7.0.0,accel=kvm,usb=off -cpu > > SandyBridge,+vme,+ds,+acpi,+ss,+ht,+tm,+pbe,+dtes64,+ > monitor,+ds_cpl,+vmx,+smx,+est,+tm2,+xtpr,+pdcm,+pcid,+ > dca,+osxsave,+arat,+xsaveopt,+pdpe1gb > > -m 61440 > > > > So now running "--cpu SandyBridge" will make any difference > > > > > > > > > > On Mon, Feb 6, 2017 at 4:28 PM, Vincenzo Romano > > <[email protected] <mailto:[email protected]>> > wrote: > > > > 2017-02-06 11:36 GMT+01:00 akhilesh rawat > > <[email protected] <mailto:[email protected]>>: > > > > > > processor : 19 > > > vendor_id : GenuineIntel > > > cpu family : 6 > > > model : 42 > > > > Hmmm. your guest CPU is a different model form the host one. > > > > Would you please: > > > > - try forcing "SandyBridge" cpu (that'd be your Intel Xeon E312xx) > > instead of host and > > - check the "Recognized CPUID flags" from the output of > > "qemu-system-x86_64 -cpu help" ? > > > > -- > > Vincenzo Romano - NotOrAnd.IT > > Information Technologies > > -- > > NON QVIETIS MARIBVS NAVTA PERITVS > > > > > >
