linux-kernel - Re: [PATCH 7/8] KVM: x86: avoid logical

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Message-ID: <54CB4CAE.2080200@redhat.com>
Date:	Fri, 30 Jan 2015 10:19:42 +0100
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Radim Krčmář <rkrcmar@...hat.com>,
	linux-kernel@...r.kernel.org
CC:	kvm@...r.kernel.org, Nadav Amit <namit@...technion.ac.il>,
	Gleb Natapov <gleb@...nel.org>
Subject: Re: [PATCH 7/8] KVM: x86: avoid logical_map when it is invalid



On 29/01/2015 22:48, Radim Krčmář wrote:
> We want to support mixed modes and the easiest solution is to avoid
> optimizing those weird and unlikely scenarios.

Hmm, what happens if use maxcpus to disable some CPUs at startup?  Could
the disabled CPUs remain in xapic mode while the others move to x2apic?

Paolo
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