Hi Zhang,
No I haven't seen such problem
Which kernel version are you running?
Does it include the latest lazy eli changes?
Btw, hv_spinlocks=0xfff is a pretty huge value.
Best regards,
Vadim.
- Original Message -
From: Zhang Haoyu zhan...@sangfor.com
To: Vadim Rozenfeld vroze...@redhat.com
Cc: Jidong Xiao jidong.x...@gmail.com, qemu-devel
qemu-de...@nongnu.org, kvm kvm@vger.kernel.org
Sent: Monday, August 4, 2014 12:17:41 PM
Subject: Re: Re: [Qemu-devel] [questions] about KVM as
aMicrosoft-compatiblehypervisor
Hi, Vadim
I start a vm(windows server 2008 64bit) with below qemu command, get stuck with
black screen during boot stage,
no error report by qemu and kvm hypervisor, but if I remove the item
hv_vapic, then start and run the VM successfully.
/var/run/qemu-server/5195516385344.pid -daemonize -name win2008_iotest -smp
sockets=1,cores=1 -cpu core2duo,hv_spinlocks=0xfff,hv_relaxed,hv_vapic
-nodefaults -vga cirrus -no-hpet -k en-us -boot menu=on,splash-time=8000 -m
2048 -usb -drive if=none,id=drive-ide0,media=cdrom,aio=native,forecast=disable
-device ide-cd,bus=ide.0,unit=0,drive=drive-ide0,id=ide0,bootindex=200 -drive
file=/sf/data/3600605b006c126da1b0cde571ba48d0d_00e0ed2d202e/images/host-00e0ed2d202e/win2008_iotest.vm/vm-disk-1.qcow2,if=none,id=drive-virtio1,cache=writethrough,aio=native,forecast=disable
-device virtio-blk-pci,drive=drive-virtio1,id=virtio1,bus=pci.0,addr=0xb
-drive
file=/sf/data/local/images/host-00e0ed2d202e/win2008_iotest.vm/vm-disk-1.qcow2,if=none,id=drive-virtio2,cache=writethrough,aio=native,forecast=disable
-device
virtio-blk-pci,drive=drive-virtio2,id=virtio2,bus=pci.0,addr=0xc,bootindex=101
-netdev
type=tap,id=net0,ifname=519551638534400,script=/sf/etc/kvm/vtp-bridge,vhost=on,vhostforc
e=on -device
virtio-net-pci,mac=FE:FC:FE:58:E0:81,netdev=net0,bus=pci.0,addr=0x12,id=net0,bootindex=300
-rtc driftfix=slew,clock=rt,base=localtime -global
kvm-pit.lost_tick_policy=discard -global PIIX4_PM.disable_s3=1 -global
PIIX4_PM.disable_s4=1 -post win2008_iotest -enable-kvm -L /boot/pc-bios
Seen similar problem before?
Any ideas?
Thanks,
Zhang Haoyu
Hi, Vadim
I read the kvm-2012-forum paper KVM as a Microsoft-compatible
hypervisor,
Any update and other references, please?
Thanks,
Zhang Haoyu
Unfortunately, not too much.
From the the most recent, we have lazy eoi implemented by
MST and reference time counter.
How to get the source of windows pv-eoi?
I'll be referencing to git://git.kernel.org/pub/scm/virt/kvm/kvm.git
for lazy eoi please take a look at commit:
b63cf42fd1d8c18fab71222321aaf356f63089c9
And what is reference time counter, could you provide some references or
code, please?
Take a look at commit:
e984097b553ed2d6551c805223e4057421370f00
I also suggest reading Hypervisor Functional Specification 3.0a provided
by Microsoft and available for downloading
from http://www.microsoft.com/en-au/download/details.aspx?id=39289
Best regards,
Vadim.
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