On 2013-05-15 16:59, Paolo Bonzini wrote: > Il 15/05/2013 03:24, Ren, Yongjie ha scritto: >>> -----Original Message----- >>> From: kvm-owner@xxxxxxxxxxxxxxx [mailto:kvm-owner@xxxxxxxxxxxxxxx] >>> On Behalf Of Alex Palesandro >>> Sent: Tuesday, May 14, 2013 10:51 PM >>> To: kvm@xxxxxxxxxxxxxxx >>> Subject: Fwd: Xen as L1 support >>> >>> Hi, >>> I'm new to KVM. I'm doing some test on nested Virtualization with Xen >>> and KVM. I tried to test the Xen hypervisor as L1 over KVM ( Linux >>> 3.9.0) and I found this in >>> "xm dmesg" log ( for the complete log, see the attached file). >>> -------------------------------------------- >>> (XEN) VMX: CPU0 has insufficent VMExit Control (00036fff but requires >>> min 00008200) >>> (XEN) VMX: failed to initialise. >>> -------------------------------------------- > > This is the "Acknowledge interrupt on exit" control. It shouldn't be > hard to implement it. Isn't this a pretty recent feature Xen should be able to live without - if it finds itself on a (virtually) older CPU? Jan
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