-Original Message-
From: Wood Scott-B07421
Sent: Thursday, May 17, 2012 3:37 AM
To: Sethi Varun-B16395
Cc: Alexander Graf; Bhushan Bharat-R65777; kvm-ppc@vger.kernel.org
Subject: Re: [PATCH] KVM: PPC: Not optimizing MSR_CE and MSR_DE with
paravirt.
On 05/16/2012 10:13 AM, Sethi
-Original Message-
From: kvm-ppc-ow...@vger.kernel.org [mailto:kvm-ppc-ow...@vger.kernel.org] On
Behalf Of Alexander Graf
Sent: Tuesday, May 15, 2012 8:01 PM
To: Bhushan Bharat-R65777
Cc: kvm-ppc@vger.kernel.org; Bhushan Bharat-R65777
Subject: Re: [PATCH] KVM: PPC: Not optimizing
-Original Message-
From: kvm-ppc-ow...@vger.kernel.org [mailto:kvm-ppc-
ow...@vger.kernel.org] On Behalf Of Alexander Graf
Sent: Wednesday, May 16, 2012 2:42 PM
To: Bhushan Bharat-R65777
Cc: kvm-ppc@vger.kernel.org
Subject: Re: [PATCH] KVM: PPC: Not optimizing MSR_CE and MSR_DE
On 05/16/2012 02:27 PM, Sethi Varun-B16395 wrote:
-Original Message-
From: kvm-ppc-ow...@vger.kernel.org [mailto:kvm-ppc-
ow...@vger.kernel.org] On Behalf Of Alexander Graf
Sent: Wednesday, May 16, 2012 2:42 PM
To: Bhushan Bharat-R65777
Cc: kvm-ppc@vger.kernel.org
Subject: Re: [PATCH]
-Original Message-
From: kvm-ppc-ow...@vger.kernel.org [mailto:kvm-ppc-
ow...@vger.kernel.org] On Behalf Of Alexander Graf
Sent: Wednesday, May 16, 2012 6:18 PM
To: Sethi Varun-B16395
Cc: Bhushan Bharat-R65777; kvm-ppc@vger.kernel.org
Subject: Re: [PATCH] KVM: PPC: Not optimizing
On 05/16/2012 10:13 AM, Sethi Varun-B16395 wrote:
Why is MSR[CE] unsafe?
MSR=0
* critical interrupt comes in *
mtmsr(MSR_CE)
-- MSR == MSR_CE
* interrupt should be delivered, but host doesn't get notified that
MSR_CE is changing *
However, we completely ignore critical interrupts in KVM
On 05/15/2012 09:37 AM, Bharat Bhushan wrote:
From: Bhushan Bharat-R65777r65...@freescale.com
If there is pending critical or machine check interrupt then guest
would like to capture it when guest enable MSR.CE and MSR_ME respectively.
Also as mostly MSR_CE and MSR_ME are updated with
