Re: [Qemu-discuss] Best Intel hardware for qemu

2019-04-10 Thread Friedrich Oslage
These are the "compatibility" lists I know of: - https://passthroughpo.st/vfio-increments/ - https://docs.google.com/spreadsheets/d/1LnGpTrXalwGVNy0PWJDURhyxa3sgqkGXmvNCIvIMenk/view#gid=2 They are focused on desktop hardware and GPU passthrough, because that's what most people use VFIO for s

Re: [Qemu-discuss] Best Intel hardware for qemu

2019-04-10 Thread Lars Bonnesen
Yes, I get it, thanks. Any way to find out if a given hardware supports VFIO? regards, Lars On Wed, Apr 10, 2019, 20:56 Jakob Bohm wrote: > As I wrote, qemu can pass disks (and disk partitions) through without > passing the disk controller through. To qemu, a physical disk is just > another vi

Re: [Qemu-discuss] Best Intel hardware for qemu

2019-04-10 Thread Jakob Bohm
As I wrote, qemu can pass disks (and disk partitions) through without passing the disk controller through. To qemu, a physical disk is just another virtual disk storage format. But if you want to pass through an entire PCI disk controller (with all its disks) for faster I/O, then VFIO is needed.

Re: [Qemu-discuss] Best Intel hardware for qemu

2019-04-10 Thread Lars Bonnesen
I want to pass local disks to a VM in order to run freenas or similar. Regards, Lars. On Wed, Apr 10, 2019, 20:20 Jakob Bohm wrote: > If you pass through the disk access to your SAN partitions as disk > accesses to block devices (such as SAN client drivers) in the host > machine, you don't need

Re: [Qemu-discuss] Best Intel hardware for qemu

2019-04-10 Thread Jakob Bohm
If you pass through the disk access to your SAN partitions as disk accesses to block devices (such as SAN client drivers) in the host machine, you don't need VFIO for that.  This can handle nearly unlimited number of virtual machines without running out of PCI slots in the host machine.  This is t

Re: [Qemu-discuss] Best Intel hardware for qemu

2019-04-10 Thread Lars Bonnesen
But for sure I want passthru - for running virtualized SAN and such Any unofficial list? Regards, Lars. On Wed, Apr 10, 2019, 18:58 Friedrich Oslage wrote: > As long as it's VT-x capable and can run Linux, you're good to go. > > It only gets tricky once you start using VFIO (direct passthrough

Re: [Qemu-discuss] Best Intel hardware for qemu

2019-04-10 Thread Friedrich Oslage
As long as it's VT-x capable and can run Linux, you're good to go. It only gets tricky once you start using VFIO (direct passthrough of host PCI devices to a VM, such as GPUs, NICs or NVMes for instance). You need VT-d support for that and both the CPU and mainboard have to support it. And not

[Qemu-discuss] Best Intel hardware for qemu

2019-04-10 Thread Lars Bonnesen
So I am coming from the VMware world (with comprehensive compatibillity lists) but about to start a project with KVM/Qemu and I would like to setup an inexpensive test setup for this purpose. I am thinking of buying one of SuperMicros IoT-servers like https://www.supermicro.com/products/system/Min