Thanks for the suggestions, Gerd. > '-global ICH9-LPC.acpi-pci-hotplug-with-bridge-support=off'
Unfortunatly, this did not result in any change in boot time. > '-cpu $name,host-phys-bits=on,host-phys-bits-limit=$bits' -cpu host,host-phys-bits=on,host-phys-bits-limit=40 does result in the desired very fast boot time, but I get errors when I try to load the GPU driver: NVRM: BAR0 is 0M @ 0x0 (PCI:0000:06:00.0) NVRM: This PCI I/O region assigned to your NVIDIA device is invalid: ** *This is the same thing I see when trying to load the driver on OVMF versions without the DynamicMMIOWindowSize patch as well, but with those versions, I don't get the errors and everything works if I boot with `pci=realloc pci=nocrs`. That is not the case here, when I just override the physbits.* *Two possible workarounds come to mind:* * *Is there some command line option that would allow me to override the MMIO window size? (basically bypassing the DynamicMMIOWindowSize heuristic without having to switch OVMF versions)* * *Alternatively, is there a way to override the virtual address bits in the same way as we can for the physical bits, via some command line option?* * *I ask this because I notice that when I disable host passthrough *(which works with my GPUs and results in a fast boot if `pci=realloc pci=nocrs` are used)* , my VM shows "Address sizes: 40 bits physical, 48 bits virtual", but when I use host passthrough and only override the physbits (which fails as described above), my VM shows "Address sizes: 40 bits physical, 57 bits virtual". (so I'm wondering if that could be a factor here.)* * *(context: we do need CPU host passthrough for our use case)* Thanks, Mitchell Augustin -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#120814): https://edk2.groups.io/g/devel/message/120814 Mute This Topic: https://groups.io/mt/109651206/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
