On Wed, Nov 20, 2019 at 06:57:20PM +0100, Paolo Bonzini wrote:
> On 20/11/19 18:50, Daniel P. Berrangé wrote:
> > On Wed, Nov 20, 2019 at 06:37:53PM +0100, Paolo Bonzini wrote:
> >> This allows using "-cpu Haswell,+vmx", which we did not really want to
> >> support in QEMU but was produced by Libvirt when using the "host-model"
> >> CPU model.
> > Can you say what is currently broken ? If I launch my current QEMU (I have
> > 4.1.1 on Fedora 31):
> >
> > qemu-system-x86_64 -cpu Haswell,+vmx
> >
> > ... I don't get any reported errors.
> >
>
> KVM does not load in the guest, though?
Indeed it doesn't:
$> ./min-qemu.sh
qemu-system-x86_64: warning: host doesn't support requested feature:
CPUID.01H:ECX.vmx [bit 5]
[...]
cirros login: cirros
Password:
[cirros] $ cat /proc/cpuinfo | grep vmx
[cirros] $ echo $?
1
Where `cat min-qemu.sh` is:
------------------------------------------------------------------------
#!/usr/bin/env bash
args=(
-display none
-cpu Haswell,+vmx
-no-user-config
-machine q35,accel=kvm
-nodefaults
-m 2048
-serial stdio
-drive file=/export/vm1.qcow2,format=qcow2,if=virtio
)
~/build/qemu/x86_64-softmmu/qemu-system-x86_64 "${args[@]}"
------------------------------------------------------------------------
[...]
--
/kashyap
