From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Sun, 28 Apr 2013 08:50:52 +0000 (+0200)
Subject: KVM: x86: Rework request for immediate exit
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~32^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=730dca42c1d363c939da18c1499c7327c66e2b37;p=pandora-kernel.git

KVM: x86: Rework request for immediate exit

The VMX implementation of enable_irq_window raised
KVM_REQ_IMMEDIATE_EXIT after we checked it in vcpu_enter_guest. This
caused infinite loops on vmentry. Fix it by letting enable_irq_window
signal the need for an immediate exit via its return value and drop
KVM_REQ_IMMEDIATE_EXIT.

This issue only affects nested VMX scenarios.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
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