RE: [Qemu-devel] [Help] Windows2012 as Guest 64+cores on KVM Halts

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Hi Paolo,

> 
> 
> On 10/02/2017 10:31, Gonglei (Arei) wrote:
> > But We tested the same cases on Xen platform and VMware, and
> > the guest booted successfully.
> 
> Were these two also tested with enlightenments enabled?  TCG surely isn't.
> 
About TCG, I just remove ' accel=kvm,' and 'hy_releaxed' from the below QEMU
Command line, I thought the hyper-V enabled then. Sorry about that.

But for Xen, we set 'viridian=1' which be thought the Hyper-V is enabled.

For VMWare we also enabled the Hyper-V enlightenments.

Thanks,
-Gonglei

> Paolo
> 
> > Today I also tested on tcg, the guest also boots successfully.
> >
> > BTW, if we disable hyper-v, there isn't problem on boot for the case.
> >
> > QEMU command line (enable hyper-v with hv_relaxed):
> >
> > # ./qemu-system-x86_64 -name win2012 -machine accel=kvm,usb=off -cpu
> qemu64,hv_relaxed -m 4001 -realtime mlock=off -smp
> 68,sockets=1,cores=68,threads=1 \
> > -drive
> file=/mnt/sdb/gonglei/win2012_r2_dc_64_raw,if=none,id=drive-ide0-0-0
> -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \
> > -boot menu=on -device piix3-usb-uhci,id=uhci -chardev
> file,id=seabios,path=/home/seabios.log -device
> isa-debugcon,iobase=0x402,chardev=seabios \
> > -monitor stdio -device cirrus-vga,id=video0,vgamem_mb=16 -vnc 0.0.0.0:10
> >
> > So, I think it's possible a KVM bug on Hyper-V enlightenments support.
> >
> > Any help will be appreciated!
> >
> > CC'ing Paolo, Radim and Vadim.



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