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Re: [Xen-devel] status of PV drivers in Xen 4.0

To: Guillaume Rousse <Guillaume.Rousse@xxxxxxxx>
Subject: Re: [Xen-devel] status of PV drivers in Xen 4.0
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Tue, 30 Mar 2010 09:04:11 +0300
Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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On Mon, Mar 29, 2010 at 11:02:09PM +0200, Guillaume Rousse wrote:
> Hello.
> The directory 'unmodified_drivers', in Xen-4.0rc8, seems to still
> requires a 2.6.18 XenLinux kernel to build. For instance, overrides.mk
> still refers to $(objtree)/include/linux/autoconf.h, instead of
> $(objtree)/include/generated/autoconf.h in recent kernels.

I believe it should compile with 2.6.27 aswell.. or if it doesn't,
please let us know.

See here for PV-on-HVM drivers building instructions for SLES11 2.6.27:

If the unmodified_drivers from Xen 4.0 doesn't build for 2.6.27,
then we should definitely add the (possible) patches from Novell.

Does anyone know if the 2.6.3x Novell xenified kernels have PV-on-HVM drivers? 

> Is there any plan to update it to a more recent kernel, as xen 4.0 has
> switched to a newer pvops tree ?

There's ongoing work to get the PV-on-HVM drivers accepted to upstream 
Linux kernel.

-- Pasi

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