On Sun, Apr 26, 2020 at 01:17:11PM +0200, Thomas Gleixner wrote: > Fenghua Yu <[email protected]> writes: > > From: Yu-cheng Yu <[email protected]> > > > > The IA32_PASID MSR is used when a task submits work via the ENQCMD > > instruction. > > Is used? > > > The per task MSR is stored in the task's supervisor FPU > > per task MSR? Lot's of MSRs .... > > > PASID state and is context switched by XSAVES/XRSTORS. > >
Maybe change the commit messge to the following? ENQCMD instruction reads PASID from IA32_PASID MSR. The MSR is stored in the task's supervisor FPU PASID state and is context switched by XSAVES/XRSTORS. Thanks. -Fenghua _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
