From: Radim Krčmář <rkrcmar@redhat.com>
Date: Fri, 22 May 2015 16:45:11 +0000 (+0200)
Subject: KVM: x86: use correct APIC ID on x2APIC transition
X-Git-Tag: omap-for-v4.3/legacy-v2-signed~167^2~56
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=257b9a5faab5849fa61f1a523b429dc279d33cc3;p=pandora-kernel.git

KVM: x86: use correct APIC ID on x2APIC transition

SDM April 2015, 10.12.5 State Changes From xAPIC Mode to x2APIC Mode
• Any APIC ID value written to the memory-mapped local APIC ID register
  is not preserved.

Fix it by sourcing vcpu_id (= initial APIC ID) instead of memory-mapped
APIC ID.  Proper use of apic functions would result in two calls to
recalculate_apic_map(), so this patch makes a new helper.

Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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