Boris Derzhavets
2008-Jun-03 19:01 UTC
Re: [Xen-users] How to set up ''vmxassist=n'' when doing Xen 3.2 build on CentOS 5.1 ?
There is very easy way to find out vmxassist status :-
Try HVM Solaris 10 (05/08) DomU install
1. if it hangs vmxassist has not been disabled
2. if it goes vmxassist has been disabled.
Same way works test Free BSD 7 (i386).
--- On Tue, 6/3/08, Brian A. Seklecki
<bseklecki@collaborativefusion.com> wrote:
From: Brian A. Seklecki <bseklecki@collaborativefusion.com>
Subject: Re: [Xen-users] How to set up ''vmxassist=n'' when
doing Xen 3.2 build on CentOS 5.1 ?
To: bderzhavets@yahoo.com, helicoterus-elih@yahoo.it
Cc: xen-users@lists.xensource.com
Date: Tuesday, June 3, 2008, 1:32 PM
All:
Is there any way to tell if vmxassist has been disabled by examining the
binaries?
bash-3.2# strings /usr/pkg/libexec/qemu-dm|grep -i vmx
(HVMXen)
HVMXEN-
bash-3.2# gzcat /xen.gz |strings |grep -i vmx
vmx_intr_assist
vmx_vmexit_handler
vmx_do_invlpg
vmx_set_cr0
vmx_world_restore
vmx_io_instruction
vmx_do_msr_read
vmx_do_msr_write
vmx_restore_guest_msrs
vmx_vmcs_restore
vmx.c
VMXON failed
VMX disabled by Feature Control MSR.
VMX: MSR intercept bitmap enabled
<G><0>%s:%d:d%d vmx_vmcs restore failed!
[HVM:%d.%d] <%s> switching to vmxassist. use phys table
<G><0>%s:%d:d%d Failed to transfer to vmxassist
[HVM:%d.%d] <%s> Transfering control to vmxassist %%eip 0x%lx
tvmx
bash-3.2# strings /usr/pkg/lib/xen/boot/hvmloader |grep -i vmx
%05x-%05x: VMXAssist
Loading VMXAssist ...
VMX go ...
vmxassist returned
VMXAssist (%s)
On Sat, 2008-04-26 at 06:53 -0700, Boris Derzhavets wrote:
> I believe answer is:-
> # make world vmxassist=n
> # make install
>
>
> --- On Sat, 4/26/08, Boris Derzhavets
<bderzhavets@yahoo.com> wrote:
>
> > From: Boris Derzhavets <bderzhavets@yahoo.com>
> > Subject: [Xen-users] How to set up
''vmxassist=n'' when doing
Xen 3.2 build on CentOS 5.1 ?
> > To: xen-users@lists.xensource.com
> > Date: Saturday, April 26, 2008, 6:41 AM
> > Looking at :-
> >
> > http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=622
> >
> > I met a comment:-
> >
> > ------ Comment #16 From Keir Fraser 2008-04-04 06:58
> > [reply] -------
> >
> > This will work in xen-unstable, and also on 3.2 branch if
> > Xen is built with
> > build option ''vmxassist=n''. It will not be
fixed in
> > older Xen branches.
> > ****************
> > My question is:-
> > *****************
> > How to set up ''vmxassist=n'' when doing Xen
3.2
> > build on CentOS 5.1 ?
> >
> >
> >
> >
> >
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>
>
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--
Brian A. Seklecki <bseklecki@collaborativefusion.com>
Collaborative Fusion, Inc.
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