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[Xen-users] XenLinux and hypervisor compatibility (XEN_COMPAT_xxx)

To: xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-users] XenLinux and hypervisor compatibility (XEN_COMPAT_xxx)
From: Luca Lesinigo <luca@xxxxxxxxxxxxx>
Date: Wed, 9 Sep 2009 15:24:12 +0200
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I took the latest Linux kernel tarball from xen.org and wondering about HV compatibility:

- if I choose to enable compatibility with an older hypervisor (atm, 3.0.2, 3.0.4 or 3.1.0) will I loose any functionality/performance/ whatever when running that kernel on a newer one (say, 3.3.x or 3.4.x)? - what does "no compatibility code (XEN_COMPAT_LATEST_ONLY)" actually mean? will this kernel run only on 3.4.1? or >=3.4.0? or 3.2.x / 3.3.x onwards?

it would probably be good to include the answers in the kernel config "help strings"....

Thank you everyone,
Luca Lesinigo

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