Re: [Xen-devel] Test report for xen-unstable and qemu-xen

["Ren, Yongjie" <yongjie.ren@xxxxxxxxx>]

> -----Original Message-----
> From: Fabio Fantoni [mailto:fabio.fantoni@xxxxxxx]
> Sent: Thursday, July 04, 2013 3:55 PM
> To: Ren, Yongjie
> Cc: xen-devel; Stefano Stabellini; Ian Campbell; Ian Jackson; Xu, Dongxiao;
> Jan Beulich
> Subject: Re: [Xen-devel] Test report for xen-unstable and qemu-xen
> 
> Il 03/07/2013 17:12, Ren, Yongjie ha scritto:
> >> -----Original Message-----
> >> From: xen-devel-bounces@xxxxxxxxxxxxx
> >> [mailto:xen-devel-bounces@xxxxxxxxxxxxx] On Behalf Of Fabio Fantoni
> >> Sent: Monday, July 01, 2013 9:20 PM
> >> To: xen-devel; Stefano Stabellini; Ian Campbell; Ian Jackson; Xu,
> Dongxiao;
> >> Jan Beulich
> >> Subject: [Xen-devel] Test report for xen-unstable and qemu-xen
> >>
> >> Dom0:
> >> Wheezy 64 bit with kernel from package linux-image-3.2.0-4-amd64
> >> version
> >> 3.2.41-2+deb7u2, package blktap-dkms and all dependency packages
> for
> >> xen, spice and usb redirection.
> >> Seabios 1.7.2-3 and latest spice and usbredir compiled from debian
> >> unstable sources.
> >> -------------------------
> >> /etc/modules
> >> ------------
> >> loop max_loop=64
> >> xenfs
> >> xen-evtchn
> >> blktap
> >> -------------------------
> >> git clone git://xenbits.xen.org/xen.git (in this build commit is
> >> bcb49301c21ed69b4e8c164fa215efe9db30621a)
> >> -------------------------
> >> Added some patches:
> >> - tools-configure-qemu-for-spice-and-usbredir
> >> - libxl-Add-spice-vdagent-support-for-upstream-qemu
> >> - tools-firmware-seabios-packaged
> >> - tools: Improve make deb
> >> - vgabios-stdvga.bin custom build from Frediano
> >> - qemu-xen change for support other resolutions:
> >> hw/vga.c: # from Frediano patch
> >>       - if ((val <= VBE_DISPI_MAX_XRES) && ((val & 7) == 0)) {
> >>       + if ((val <= VBE_DISPI_MAX_XRES) && ((val & 1) == 0)) {
> >> -------------------------
> >> ./configure --prefix=/usr
> >> -------------------------
> >> make debball
> >>
> >> -------------------------
> >> Issues solved from my previous test build report:
> >> -------------
> >> - nested hvm was bugged:
> >>
> >>     Before: started test it on windows 7 pro 64 domU on qemu-xen,
> >>     xpmode crashed on install without show error, no error on logs
> and
> >> havdetection works.
> >>
> >>     Now xpmode installs and starts correctly except integration
> features
> >>     (disks,printers,clipboard sharing) and usb passthrough (of
> xpmode)
> >> -------------------------
> >>
> > Hi Fabio,
> > I'm also testing Win7 XP mode in nested VMX environment, but I met
> some
> > problems. In the Windows 7 HVM guest, a tool from Microsoft showed
> > hardware-assisted virtualization is supported, but XP mode showed
> "hardware-
> > assisted virtualization is disabled" and it refused to boot XP.
> > (see the attached 2 pictures to get the two conflicting messages..)
> >
> > I followed the MS' below doc to set up XP mode.
> >
> http://windows.microsoft.com/en-us/windows7/install-and-use-windows-x
> p-mode-in-windows-7
> > And, used the tool http://go.microsoft.com/fwlink/p/?LinkId=163321 to
> check
> > whether hardware-assisted virtualization is enabled or not.
> >
> > Test environment:
> > hardware: Sandy Bridge - EP server
> > L0: latest Xen 4.3, Dom0 3.10.0, qemu-xen (not traditional)
> > L1: Windows 7 Enterprise
> > L2: XP mode
> >
> > my Win7 guest config file is below; can you give me any hints?
> > ----------------------
> > builder = "hvm"
> > name = "jay-hvm-1"
> > memory = 2048
> > vcpus = 2
> > vif = [ '' ]
> > disk = [ '/home/jay/win7-1.qcow2,qcow2,xvda,w' ]
> > vnc = 1
> > stdvga = 1
> > usb=1
> > usbdevice='tablet'
> > nestedhvm=1
> > ----------------------
> Have you tried with same xen commit?
> (bcb49301c21ed69b4e8c164fa215efe9db30621a) or atleast to this that
> probably have solved my problem: nested vmx: Fix the booting of L2 PAE
> guest - 49b55619e4923aa1a43b7c027dd3e352575e4e52
Yes, I tried that commit you mentioned. I also think Dongxiao's fix 
"nested vmx: Fix the booting of L2 PAE" can fix some issue as you tested.

But in my testing, with or without that fix, I met the same issue. I can't
even use 'XP mode' in Win7 guest. 'XP Moe' showed hardware VT is disabled;
while MS's another tool to check VT showed hardware VT is supported. 
I was confused and can't even start XP mode in Win7 HVM guest. 
(Before that fix, you can see your XP mode crash; but I can't start XP mode at 
all.)

thanks!  - Jay

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