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RE: [Xen-devel] TMEM + pv_ops kernel?



Hi Rick –

 

Tmem is primarily of use in PV guests, less so in dom0.  Are you putting pv_ops kernels in your PV guests (domUs)?

 

If so, Jeremy has been a big proponent of tmem and we can work together to get it into his pv_ops tree.   But I think most of the focus for the pv_ops work has been to provide dom0 support.  Upstream kernels already provide domU support, so I’ve been instead working on the linux-kernel-mailing-list toward getting tmem patches accepted upstream.

 

If not, just using a tmem-modified dom0 will probably not help you.   I have been working on tmem-modified rpm’s for various RedHat-ish kernels and I know Jan Beulich has been working on putting tmem support into various SuSE kernels.

 

I’d also be interested in more information about your planned usage model for tmem.

 

Thanks,

Dan

 

From: Rick Boone [mailto:rick@xxxxxxxxxxxxxx]
Sent: Thursday, May 13, 2010 4:17 PM
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] TMEM + pv_ops kernel?

 

Hey,

I'm building Jeremy's pv_ops dom0 kernel (2.6.32.12) for use with Xen 4.0 and it looks like the Transcendant Memory options arent in the kernel config. Is TMEM not available in pv_ops? I've been looking forward to using it with Xen4, but also really wanna work with pv_ops moving forward.

Thanks alot, 
-- Rick

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