JEP: 342: Limit Speculative Execution

Tue Nov 20 22:07:53 UTC 2018

Hi Derek,

I've updated the JEP to clarify which platforms are covered.

Thanks,
/Jesper

> On 20 Nov 2018, at 22:42, White, Derek <Derek.White at cavium.com> wrote:
> 
> Hi Jesper,
> 
> [Sorry for the "timely" response.]
> 
> Although the mechanisms for managing and identifying an alternative JVM are not platform-specific, the mitigation strategy proposed (e.g. the specific gcc options) are x86-specific.
> 
> I suggest adding a note in the JEP that the specific mitigations proposed are x86 specific, and that other ports will need to identify what mitigations are appropriate (if any).
> 
> I'll start up a discussion in the aarch64 list on what we should do about limiting speculative execution, and we may link aarch64-specific enhancements to this JEP.  This needs to be looked at for both C++ options and JIT implementation on aarch64.
> 
> Thanks,
> 
> - Derek
> 
>> -----Original Message-----
>> From: jdk-dev <jdk-dev-bounces at openjdk.java.net> On Behalf Of
>> mark.reinhold at oracle.com
>> Sent: Friday, September 07, 2018 1:53 PM
>> To: jesper.wilhelmsson at oracle.com
>> Cc: jdk-dev at openjdk.java.net
>> Subject: New candidate JEP: 342: Limit Speculative Execution
>> 
>> External Email
>> 
>> http://openjdk.java.net/jeps/342
>> 
>> - Mark