On 11/15/18 06:58, A Z wrote: > This is an issue that involves a combination of different software > packages, so my apologies in advance if this is the wrong list to post on. > > I'm experiencing terrible boot times when I assign a large amount of RAM to > a VM when used in combination with VIFO/PCI-passthrough. > > On a VM with a Nvidia GTX 970 + USB controller and 24GiB of RAM assigned, > the time to the TianoCore splash screen is ~5 minutes. It's then ~30 > seconds before Windows 10 begins to boot (spinning dots). During this time, > the QEMU CPU core threads are 100% busy. > > According to `perf`, the QMU CPU core threads are spending most of their > time waiting on a spinlock over kvm->mmu_lock that's created by > kvm_zap_gfn_range. > > I'm fairly certain that ~1 year ago (if not longer) the same configuration > didn't take this long to boot.
I see you posted this to vfio-users as well -- that would have been my recommendation anyway. I'll follow up there briefly. Thanks Laszlo _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
