Re: [PATCH v4 00/17] arm64: Add SMCCC v1.1 support and CVE-2017-5715 (Spectre variant 2) mitigation

From: Jon Masters
Date: Thu Feb 15 2018 - 15:59:39 EST


Hi Marc, all,

On 02/06/2018 12:56 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].

I'm probably just missing something, but does this end up reported
somewhere conveniently user visible? In particular, if the new SMC is
*not* provided, does the user end up easily seeing this?

Jon.

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