From mboxrd@z Thu Jan  1 00:00:00 1970
From: jcm@jonmasters.org (Jon Masters)
Date: Sat, 9 Jun 2018 09:09:35 -0400
Subject: [PATCH v2 12/17] arm64: KVM: Add ARCH_WORKAROUND_2 support for
 guests
In-Reply-To: <20180529121121.24927-13-marc.zyngier@arm.com>
References: <20180529121121.24927-1-marc.zyngier@arm.com>
 <20180529121121.24927-13-marc.zyngier@arm.com>
Message-ID: <98318e6c-adcd-ddb8-ad92-e7c1fa771c84@jonmasters.org>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On 05/29/2018 08:11 AM, Marc Zyngier wrote:
> In order to offer ARCH_WORKAROUND_2 support to guests, we need
> a bit of infrastructure.
> 
> Let's add a flag indicating whether or not the guest uses
> SSBD mitigation. Depending on the state of this flag, allow
> KVM to disable ARCH_WORKAROUND_2 before entering the guest,
> and enable it when exiting it.

...Live migration?

Jon.