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    SubjectRe: [PATCH v2 00/16] arm64: Add SMCCC v1.1 support and CVE-2017-5715 (Spectre variant 2) mitigation
    Hi Jon,

    On Sat, 09 Jun 2018 14:22:27 +0100,
    Jon Masters wrote:
    >
    > Hi Marc,
    >
    > On 01/29/2018 12:45 PM, Marc Zyngier wrote:
    >
    > > ARM has recently published a SMC Calling Convention (SMCCC)
    > > specification update[1] that provides an optimised calling convention
    > > and optional, discoverable support for mitigating CVE-2017-5715. ARM
    > > Trusted Firmware (ATF) has already gained such an implementation[2].
    >
    > Some questions:
    >
    > 1). What's the plan to implement the boot time on/off control for
    > spectre_v2 mitigations?

    None so far. It can only be disabled at compile time.

    > 2). What's the plan to handle live migration of VMs?

    [I assume that by "migration of VMs, you actually mean migration of
    the mitigation state]

    As I mentioned in response to your comment on the variant-4 series,
    this is a work in progress, and is mentioned in the cover letter of
    that series. Hopefully I'll find time to work on it next week.

    M.

    --
    Jazz is not dead, it just smell funny.

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