Re: [Xen-devel] Re: cs 23453:4f4970d2848d beaks Win 7

[Tobias Geiger <tobias.geiger@xxxxxxxxx>]

Hallo List!,

To bring even more confusion to this:


W7 64bit (prof) HVM guest works fine here (i.e. no BSOD like the ones described 
here) with:

xen_changeset          : Thu Aug 25 12:03:14 2011 +0100 23791:227130622561

Standard qemu, no seabios/upstreamqemu.

OTOH - see the screenshot here: 
http://img199.imagevenue.com/img.php?image=84661_win64_strange_cpus_122_233lo.jpg

This "behaviour" is normal here - since Win7_64, in Win7_32 and WinXP_32 this 
was no the case iirc.
Windows7_64 seems to have Problems "to start" the CPU (Code: 10) - but with no 
visible consquences besides this funny looking devicemanager... 
Here's the xen cfg for this guest:

acpi=1
apic=1
boot="c"
builder = 'hvm'
cpus = [ "2", "3", "4", "5", "6", "7" ]
disk = ['tap:qcow2:/home/kaeptnb/.kvm/windows7.qcow2,ioemu:hda,w' ]
gfx_passthru=0
hpet=1
keymap = "de"
memory = '4900'
monitor=1
name = 'win'
on_crash = "preserve"
on_poweroff = "preserve"
on_reboot = "preserve"
on_xend_stop = "shutdown"
pae=1
pci = [ '08:00.0' , '08:00.1'  , '00:1a.7' ]
pci_msitranslate=1
pci_power_mgmt = 1
sdl=0
serial = 'pty'
shadow_memory=32
stdvga=1
uuid = "someuuid :)"
vcpus = 6
vif = ['type=ioemu, bridge=br0, mac=anymac:), model=e1000' ]
viridian=1
vnc=1
vncconsole=0
vncpasswd=""
xen_platform_pci=1



Greetings
Tobias

Am Donnerstag, 1. September 2011, 11:45:03 schrieb Christoph Egger:
> On 09/01/11 11:32, Ian Campbell wrote:
> > On Thu, 2011-09-01 at 10:08 +0100, Christoph Egger wrote:
> >> On 09/01/11 10:50, Ian Campbell wrote:
> >>> On Thu, 2011-09-01 at 09:36 +0100, Christoph Egger wrote:
> >>>> cs 23453:4f4970d2848d breaks Win 7. It fails to initialize the CPUs
> >>>> as shown in the device manager and this causes a BSOD on shutdown.
> >>> 
> >>> Are you 100% sure it's that cset?
> >> 
> >> Yes, I am. I found that c/s by bisecting. I used the latest xen-kernel
> >> and toolchain, just replaced the hvmloader binary and booted a
> >> Win7 guest (both 32bit and 64bit) with one vcpu.
> >> 
> >> An hvmloader binary built from c/s 23452 works.
> >> BTW: I use the rombios.
> >> 
> >>   >  It moves a few things around but it doesn't actually remove
> >>   >  anything.
> >>   
> >>   From a first glance, bios_info_setup() is called earlier with this
> >>   c/s.
> > 
> > I guess something could be clobbering that datastructure but there isn't
> > much of interest in it now anyway. This stuff has subsequently been
> > reorganised even more and moved around etc. I presume it is broken even
> > for xen-unstable.hg 23809:85b29185c911?
> 
> Yes, it is.
> 
> > I'll see if I can repro. Can you post your guest cfg file please?
> 
> builder="hvm"
> memory=2048
> name="win7"
> vcpus=1
> acpi=1
> apic=1
> vif = [ 'type=ioemu, model=e1000' ]
> disk = [ 'file:/hvm-guest/win7.img,ioemu:hda,w' ]
> sdl=0
> vnc=1
> stdvga=1
> usb=1
> usbdevice='tablet'


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