On Fri, Jul 10, 2020 at 10:10:34AM -0600, Alex Williamson wrote: > On Fri, 10 Jul 2020 10:44:33 -0500 > Bjorn Helgaas <helgaas@xxxxxxxxxx> wrote: > > > On Fri, Jul 10, 2020 at 10:37:45AM -0500, Bjorn Helgaas wrote: > > > On Fri, Jul 10, 2020 at 04:08:19PM +0100, Giovanni Cabiddu wrote: > > > > On Wed, Jul 01, 2020 at 04:28:12PM -0500, Bjorn Helgaas wrote: > > > > > On Wed, Jul 01, 2020 at 12:03:00PM +0100, Giovanni Cabiddu wrote: > > > > > > The current generation of Intel® QuickAssist Technology devices > > > > > > are not designed to run in an untrusted environment because of the > > > > > > following issues reported in the release notes in > > > > > > https://01.org/intel-quickassist-technology: > > > > > > > > > > It would be nice if this link were directly clickable, e.g., if there > > > > > were no trailing ":" or something. > > > > > > > > > > And it would be even better if it went to a specific doc that > > > > > described these issues. I assume these are errata, and it's not easy > > > > > to figure out which doc mentions them. > > > > Sure. I will fix the commit message in the next revision and point to the > > > > actual document: > > > > https://01.org/sites/default/files/downloads/336211-015-qatsoftwareforlinux-rn-hwv1.7-final.pdf > > > > > > Since URLs tend to go stale, please also include the Intel document > > > number and title. > > > > Oh, and is "01.org" really the right place for that? It looks like an > > Intel document, so I'd expect it to be somewhere on intel.com. > > > > I'm still a little confused. That doc seems to be about *software* > > and Linux software in particular. But when you said these "devices > > are not designed to run in an untrusted environment", I thought you > > meant there was some *hardware* design issue that caused a problem. Yes, the problem is in hardware. > There seems to be a fair bit of hardware errata in the doc too, see: > > 3.1.2 QATE-7495 - GEN - An incorrectly formatted request to Intel® QAT can > hang the entire Intel® QAT Endpoint > > 3.1.9 QATE-39220 - GEN - QAT API submissions with bad addresses that > trigger DMA to invalid or unmapped addresses can cause a platform > hang > > 3.1.17 QATE-52389 - SR-IOV -Huge pages may not be compatible with QAT > VF usage > > 3.1.19 QATE-60953 - GEN – Intel® QAT API submissions with bad addresses > that trigger DMA to invalid or unmapped addresses can impact QAT > service availability Correct, that document contains errata for both the QAT HW and the current software. Regards, -- Giovanni
