3 ms·
How do you disable TSX? I don't see a control register flag or an MSR.
by strstr 7y ago
How do you disable TSX? I don't see a control register flag or an MSR.
- GranPC 7y agoMSR IA32_TSX_CTRL, introduced with a microcode update a while back.
- strstr 7y agoWow, it's not even in the SDM. Only docs I can find are: https://software.intel.com/security-software-guidance/insights/deep-dive-intel-transactional-synchronization-extensions-intel-tsx-asynchronous-abort https://software.intel.com/security-software-guidance/insigh... Glad it's possible to do this in virt now: used to be impossible to disable TSX (you could avoid advertising it via cpuid, but you couldn't actually prevent usage of the instructions).