https://community.intel.com/t5/Intel-Software-Guard-Extensions/SGX-and-hyperthreading-with-executors/m-p/1211956#M3989 <P>Hello Edwardbr,</P><P><BR /></P><P><SPAN style="font-family: Calibri, sans-serif; font-size: 11pt;">Unfortunately, I have not been able to get a response from engineering. If I get a response, I will update this thread.</SPAN></P><BR /> Wed, 23 Sep 2020 17:50:22 GMT JesusG_Intel 2020-09-23T17:50:22Z https://community.intel.com/t5/Intel-Software-Guard-Extensions/SGX-and-hyperthreading-with-executors/m-p/1199364#M3873 <P>Hi I am interested in running executors inside enclaves.&nbsp; This is a piece of code that runs permanently in a loop picking up pieces of work and executing them.&nbsp;</P> <P>Currently I have hyperthreading turned off due to spectre concerns.&nbsp; If I were to have them enabled and if both threads in that core were running the same executor loop in the same enclave, and if they were never leaving the enclave in a return or an ocall.&nbsp; Would the recommendations on disabling hyperthreading because of hardware attacks no longer apply?</P> <P>If so how would I know that both hyperthreads are running in the same enclave before I started executing sensitive data?</P> <P>Regards</P> <P>Edward</P> Tue, 11 Aug 2020 11:31:07 GMT https://community.intel.com/t5/Intel-Software-Guard-Extensions/SGX-and-hyperthreading-with-executors/m-p/1199364#M3873 Edwardbr 2020-08-11T11:31:07Z https://community.intel.com/t5/Intel-Software-Guard-Extensions/SGX-and-hyperthreading-with-executors/m-p/1201803#M3881 <P>Hello Edwardbr,</P><P><BR /></P><P>We are looking into your issue and will respond as soon as we have an answer.</P><BR /> Wed, 19 Aug 2020 19:41:56 GMT https://community.intel.com/t5/Intel-Software-Guard-Extensions/SGX-and-hyperthreading-with-executors/m-p/1201803#M3881 JesusG_Intel 2020-08-19T19:41:56Z https://community.intel.com/t5/Intel-Software-Guard-Extensions/SGX-and-hyperthreading-with-executors/m-p/1211956#M3989 <P>Hello Edwardbr,</P><P><BR /></P><P><SPAN style="font-family: Calibri, sans-serif; font-size: 11pt;">Unfortunately, I have not been able to get a response from engineering. If I get a response, I will update this thread.</SPAN></P><BR /> Wed, 23 Sep 2020 17:50:22 GMT https://community.intel.com/t5/Intel-Software-Guard-Extensions/SGX-and-hyperthreading-with-executors/m-p/1211956#M3989 JesusG_Intel 2020-09-23T17:50:22Z