On Tue, May 22, 2018 at 04:06:46PM +0100, 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 ARC
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.
