Problem with Ubuntu Edgy and AMD X2

Problem with Ubuntu Edgy and AMD X2

[Franco Spinelli]

I am testing kvm on my new PC
MB is Asus M2NPV-VM with AMD CPU X2.
Installed OS is Ubuntu Edgy

I get kvm tarball and compiled it.

After installing gcc 3.4 I begin compile step

On Ubuntu Edgy there is no uuid/uuid.h file so I have grab it from tar 
file at Ubuntu repository and put it in qemu subdir of kvm

On Ubuntu Edgy libuuid is in /lib/libuuid.so.1 so I make a link from it 
to /lib/libuuid.so

After this, I got kvm compile and install.
I modprobe new module without any problem, create a disk image and 
begint to install Windows XP on that.
At formatting step it take a long time (about 25 min for a 6Gb of disk) 
with 90% of CPU and only very little i/o activity.At about 99%, exit 
from install with a message "impossible to format".

Using dmesg command I geta lot of this error:

[17192500.496000] kvm: unhandled rdmsr: 0xc0000081

I have also tried a workaround necessary for Xen on my MB. In install 
procedure of XP I hit F5 key and used "Standard PC" from menu choice, 
without any change


Booting with -no-acpi flag an image file made by qemu (for first install 
step) and by Xen (for install completition)  boot and work but I am not 
able to activate network connection. I find a network adapter, I can 
configure it but I have no response pinging other LAN PC.

Regards

Franco Spinelli



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Re: Problem with Ubuntu Edgy and AMD X2

[Avi Kivity]

Franco Spinelli wrote:
> I am testing kvm on my new PC
> MB is Asus M2NPV-VM with AMD CPU X2.
> Installed OS is Ubuntu Edgy
>
> I get kvm tarball and compiled it.
>
> After installing gcc 3.4 I begin compile step
>
> On Ubuntu Edgy there is no uuid/uuid.h file so I have grab it from tar 
> file at Ubuntu repository and put it in qemu subdir of kvm
>
> On Ubuntu Edgy libuuid is in /lib/libuuid.so.1 so I make a link from it 
> to /lib/libuuid.so
>   

You're probably missing a package.  On Fedora Core, e2fsprogs-devel 
contains both libuuid.so and uuid.h.

> After this, I got kvm compile and install.
> I modprobe new module without any problem, create a disk image and 
> begint to install Windows XP on that.
> At formatting step it take a long time (about 25 min for a 6Gb of disk) 
> with 90% of CPU and only very little i/o activity.At about 99%, exit 
> from install with a message "impossible to format".
>
> Using dmesg command I geta lot of this error:
>
> [17192500.496000] kvm: unhandled rdmsr: 0xc0000081
>   

What cpu is this? A 32-bit Intel Core?


> I have also tried a workaround necessary for Xen on my MB. In install 
> procedure of XP I hit F5 key and used "Standard PC" from menu choice, 
> without any change
>
>
> Booting with -no-acpi flag an image file made by qemu (for first install 
> step) and by Xen (for install completition)  boot and work but I am not 
> able to activate network connection. I find a network adapter, I can 
> configure it but I have no response pinging other LAN PC.
>   

Unless you use ethernet bridging, ping will not work.  TCP from the 
guest to the outside world should work, but not from outside into the 
guest (in effect the guest is NATed by qemu).

See also http://compsoc.dur.ac.uk/~djw/qemu.html.

-- 
error compiling committee.c: too many arguments to function


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Re: Problem with Ubuntu Edgy and AMD X2

[Dor Laor]

> Franco Spinelli wrote:
> > I am testing kvm on my new PC
> > MB is Asus M2NPV-VM with AMD CPU X2.
> > Installed OS is Ubuntu Edgy
> >
> > I get kvm tarball and compiled it.
> >
> > After installing gcc 3.4 I begin compile step
> >
> > On Ubuntu Edgy there is no uuid/uuid.h file so I have grab it from
tar
> > file at Ubuntu repository and put it in qemu subdir of kvm
> >
> > On Ubuntu Edgy libuuid is in /lib/libuuid.so.1 so I make a link from
it
> > to /lib/libuuid.so
> >
> 
> You're probably missing a package.  On Fedora Core, e2fsprogs-devel
> contains both libuuid.so and uuid.h.
> 
> > After this, I got kvm compile and install.
> > I modprobe new module without any problem, create a disk image and
> > begint to install Windows XP on that.
> > At formatting step it take a long time (about 25 min for a 6Gb of
disk)
> > with 90% of CPU and only very little i/o activity.At about 99%, exit
> > from install with a message "impossible to format".
> >
> > Using dmesg command I geta lot of this error:
> >
> > [17192500.496000] kvm: unhandled rdmsr: 0xc0000081
> >
> 
> What cpu is this? A 32-bit Intel Core?

If the above is correct it's AMD.
On 32-bit host it shouldn't matter.
On 64 bit we are handling it, so it's important to know the host OS
type.

> 
> 
> > I have also tried a workaround necessary for Xen on my MB. In
install
> > procedure of XP I hit F5 key and used "Standard PC" from menu
choice,
> > without any change
> >
> >
> > Booting with -no-acpi flag an image file made by qemu (for first
install
> > step) and by Xen (for install completition)  boot and work but I am
not
> > able to activate network connection. I find a network adapter, I can
> > configure it but I have no response pinging other LAN PC.
> >
> 
> Unless you use ethernet bridging, ping will not work.  TCP from the
> guest to the outside world should work, but not from outside into the
> guest (in effect the guest is NATed by qemu).
> 
> See also http://compsoc.dur.ac.uk/~djw/qemu.html.

If you want a script that build a software bridge automatically use
download the code from 'svn checkout svn://kvm.qumranet.com/kvm/trunk
dirname'
Take the dirname/scripts/kvm and put it in /etc/init.d + chkconfig it +
service kvm start.
The script add sw0 bridge and switches IP with eth0.

Now you can run qemu with a tap - use arguments
Qemu ..... -net nic -net tap,script=dirname/scripts/qemu-ifup

After that you could ping/tcp the guest from outside.
> 
> --
> error compiling committee.c: too many arguments to function
> 
> 
>
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Re: Problem with Ubuntu Edgy and AMD X2

[Avi Kivity]

[-- Attachment #1: Type: text/plain, Size: 281 bytes --]

Franco Spinelli wrote:
> Using dmesg command I geta lot of this error:
>
> [17192500.496000] kvm: unhandled rdmsr: 0xc0000081
>   

The attached patch should fix it (we didn't handle MSR_STAR on 32-bit 
AMD hosts)


-- 
error compiling committee.c: too many arguments to function


[-- Attachment #2: amd-msr-star.patch --]
[-- Type: text/x-patch, Size: 1087 bytes --]

Index: kernel/svm.c
===================================================================
--- kernel/svm.c	(revision 4096)
+++ kernel/svm.c	(revision 4097)
@@ -402,11 +402,11 @@
 	set_msr_interception(msrpm_va, MSR_GS_BASE, 1, 1);
 	set_msr_interception(msrpm_va, MSR_FS_BASE, 1, 1);
 	set_msr_interception(msrpm_va, MSR_KERNEL_GS_BASE, 1, 1);
-	set_msr_interception(msrpm_va, MSR_STAR, 1, 1);
 	set_msr_interception(msrpm_va, MSR_LSTAR, 1, 1);
 	set_msr_interception(msrpm_va, MSR_CSTAR, 1, 1);
 	set_msr_interception(msrpm_va, MSR_SYSCALL_MASK, 1, 1);
 #endif
+	set_msr_interception(msrpm_va, MSR_K6_STAR, 1, 1);
 	set_msr_interception(msrpm_va, MSR_IA32_SYSENTER_CS, 1, 1);
 	set_msr_interception(msrpm_va, MSR_IA32_SYSENTER_ESP, 1, 1);
 	set_msr_interception(msrpm_va, MSR_IA32_SYSENTER_EIP, 1, 1);
@@ -1098,10 +1098,10 @@
 	case MSR_IA32_APICBASE:
 		*data = vcpu->apic_base;
 		break;
-#ifdef CONFIG_X86_64
-	case MSR_STAR:
+	case MSR_K6_STAR:
 		*data = vcpu->svm->vmcb->save.star;
 		break;
+#ifdef CONFIG_X86_64
 	case MSR_LSTAR:
 		*data = vcpu->svm->vmcb->save.lstar;
 		break;

[-- Attachment #3: Type: text/plain, Size: 347 bytes --]

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