Re: [GPU pass-through] no compatible bridge window for claimed BAR

2020-03-12 Thread Alex Erley
Hello Peter, Many thanks for your insight! Changing PCI_EMUL_MEMBASE64 from 0xD0 to 0x044000 (16Gb guest memory limit) and PCI_EMUL_MEMLIMIT64 from 0xFD to 0x07 (32Gb host memory limit) still fails. From guest dmesg: ... [mem 0xc000-0x] available for P

Re: [GPU pass-through] no compatible bridge window for claimed BAR

2020-03-14 Thread Alex Erley
Hello, Some new findings to share. 1) Changing PCI_EMUL_MEMBASE64 from 0xD0 to any value *below 0x044000* makes bhyve fail when starting VM with message: bhyve: failed to initialize BARs for PCI 1/0/0 device emulation initialization error: Cannot allocate memory 2) Having PCI_EM

Re: [GPU pass-through] no compatible bridge window for claimed BAR

2020-03-18 Thread Alex Erley
blem---if you want to use proprietary drivers---is that access to the ROM BAR is not supported or emulated. If that could be fixed, it would be a big step forwards. ‐‐‐ Original Message ‐‐‐ On Saturday, 14 March 2020 12:50, Alex Erley wrote: Hello, Some new findings to share.

Re: [GPU pass-through] no compatible bridge window for claimed BAR

2020-03-19 Thread Alex Erley
Hi, > > Do we have already some code for ROM BAR somewhere? > Henrik Gulbrandsen was working on expansion ROM support last July > (CC'd). > He posted his work up on https://www.gulbra.net/freebsd-bhyve/. Wow! Great news, this is definitely good source to accelerate things! Have to look at these