4 ms·
Modern drives are directly connected to the PCIe bus (over NVMe) and even have DMA access IIRC, which potentially enables them to do much more than just store b
by necovek 2y ago
Modern drives are directly connected to the PCIe bus (over NVMe) and even have DMA access IIRC, which potentially enables them to do much more than just store bits of data.
FWIW, even external drives connected through TB have similar level of access.
- mindslight 2y agoThat's a great point - modern drives are actual PCIe devices themselves, not the more restricted SATA protocol. The librebooted machine that I was talking about has a properly situated IOMMU that should protect it against rogue PCIe devices (otherwise this same point applies to things like network card firmware). But it's important to keep in mind that many motherboards do not.