From: Marcelo Tosatti <mtosatti@redhat.com>
To: Jan Kiszka <jan.kiszka@web.de>
Cc: Gleb Natapov <gleb@redhat.com>, kvm <kvm@vger.kernel.org>,
"Nakajima, Jun" <jun.nakajima@intel.com>,
"Ren, Yongjie" <yongjie.ren@intel.com>
Subject: Re: [PATCH] KVM: x86: Rework request for immediate exit
Date: Thu, 2 May 2013 22:20:39 -0300 [thread overview]
Message-ID: <20130503012039.GD5467@amt.cnet> (raw)
In-Reply-To: <517CE2EC.5010901@web.de>
On Sun, Apr 28, 2013 at 10:50:52AM +0200, Jan Kiszka wrote:
> From: Jan Kiszka <jan.kiszka@siemens.com>
>
> 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>
Please rebase against "KVM: x86: Account for failing enable_irq_window
for NMI window request".
next prev parent reply other threads:[~2013-05-03 1:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-28 7:23 [PATCH] KVM: x86: Check KVM_REQ_IMMEDIATE_EXIT after enable_irq_window Jan Kiszka
2013-04-28 8:29 ` Gleb Natapov
2013-04-28 8:50 ` [PATCH] KVM: x86: Rework request for immediate exit Jan Kiszka
2013-05-03 1:20 ` Marcelo Tosatti [this message]
2013-05-03 5:33 ` Gleb Natapov
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