From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Sat, 4 Jan 2014 17:47:16 +0000 (+0100)
Subject: KVM: SVM: Fix reading of DR6
X-Git-Tag: v3.14-rc1~127^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=73aaf249ee2287b4686ff079dcbdbbb658156e64;p=pandora-kernel.git

KVM: SVM: Fix reading of DR6

In contrast to VMX, SVM dose not automatically transfer DR6 into the
VCPU's arch.dr6. So if we face a DR6 read, we must consult a new vendor
hook to obtain the current value. And as SVM now picks the DR6 state
from its VMCB, we also need a set callback in order to write updates of
DR6 back.

Fixes a regression of 020df0794f.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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