Doesn’t Spectre just require speculative fetching? In which case in order is not sufficient as to guarantee immunity. It’s Meltdown that relies on out of order

Doesn’t Spectre just require speculative fetching? In which case in order is not sufficient as to guarantee immunity. It’s Meltdown that relies on out of order execution. https://meltdownattack.com/meltdown.pdf https://meltdownattack.com/meltdown.pdf https://spectreattack.com/spectre.pdf https://spectreattack.com/spectre.pdf