Messages in this thread |  | | Date | Sat, 09 Jun 2018 15:06:41 +0100 | From | Marc Zyngier <> | Subject | Re: [PATCH v2 00/16] arm64: Add SMCCC v1.1 support and CVE-2017-5715 (Spectre variant 2) mitigation |
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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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