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From: | Paolo Bonzini |
Subject: | Re: [Qemu-devel] [PATCH] target-i386: enable x2apic by default on more recent CPU models |
Date: | Tue, 21 Jan 2014 11:03:15 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130923 Thunderbird/17.0.9 |
Il 20/01/2014 23:13, Andreas Färber ha scritto: > I don't like the argument that we can put arbitrary stuff in our model > definitions and rely on TCG not having implemented it to make it > correct. Is x2apic something that TCG can never implement for some > reason? Then that needs a better explanation. Otherwise, is there no > criteria we can add this flag for when kvm_enabled()? We already do that for other bits (e.g. XSAVE/OSXSAVE), and in fact it is the same that we do for KVM: the KVM_GET_SUPPORTED_CPUID result is used to trim the generic feature bits. Paolo
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