linux-kernel - Re: [RFC v3 09/10] KVM: arm64: Add the EL1 physical timer access handler

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Date:   Thu, 2 Feb 2017 11:31:03 +0100
From:   Christoffer Dall <cdall@...aro.org>
To:     Jintack Lim <jintack@...columbia.edu>
Cc:     pbonzini@...hat.com, rkrcmar@...hat.com,
        christoffer.dall@...aro.org, marc.zyngier@....com,
        linux@...linux.org.uk, catalin.marinas@....com,
        will.deacon@....com, andre.przywara@....com, kvm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC v3 09/10] KVM: arm64: Add the EL1 physical timer access
 handler

On Wed, Feb 01, 2017 at 12:43:09PM -0500, Jintack Lim wrote:
> KVM traps on the EL1 phys timer accesses from VMs, but it doesn't handle
> those traps. This results in terminating VMs. Instead, set a handler for
> the EL1 phys timer access, and inject an undefined exception as an
> intermediate step.
> 
> Signed-off-by: Jintack Lim <jintack@...columbia.edu>

Reviewed-by: Christoffer Dall <christoffer.dall@...aro.org>