Re: [PATCH 0 of 2] Support for Paging/Sharing on AMD

["Andres Lagar-Cavilla" <andres@lagarcavilla.org>]

> On Thu, Mar 29, Andres Lagar-Cavilla wrote:
>
>> The question now is what to do for AMD+paging in Xen 4.2. It works
>> partially, there are still VMEXIT_shutdown hvm crashes happening with pv
>> drivers.
>
> I tested it with openSuSE 11.4 and the kernel-xen shipped with it and a
> sles11sp2 guest. paging works in that combination, I did a fresh
> installation in the guest and went half way through it. The cfg is
> below, in case it matters.
>
> Its possible that a pvops kernel in host or guest triggers some issues.
>
> Thanks anyway for doing that work, Andres!

Not a problem. Very glad it's working nicely.

It's Windows PV drivers on the guest, during resume, that trigger the
issue. Not easiest to track. Wei and his colleagues at AMD have been
lending a a very helpful hand.

If you have time, could you add the following data point: Linux guest with
PV drivers? (hit the network hard, balloon, etc)

Thanks!
Andres
>
> Olaf
>
>
> # /etc/xen/vm/hvm1
> builder='hvm'
> memory = 512
> name = "ExampleHVMDomain1"
> disk = [ 'file:/dev/shm/loopfile,hda,w',
> 'file:/dist/iso/sles11/cdn.novell.com/prot/sles11sp2-x86_64/SLES-11-SP2-DVD-x86_64-GM-DVD1.iso,hdc:cdrom,r'
> ]
> sdl=0
> opengl=1
> vnc=1
> vncpasswd=''
> stdvga=0
> serial='pty'
> tsc_mode=0
> mem_target_paging=123
> xenpaging_extra=[ '-f' , '/dev/shm/pagingfile', '-v' ]
>
>