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by drewg123 2767 days ago
FWIW, I'm currently running 3.2, and that's all I've ever run. I think there have been a few BIOSes since then, but I have not tried them. This bug is annoying, but manageable (esp. since the box is on a UPS), so I don't want to go through the hassle of an upgrade..
1 comments
washadjeffmad 2767 days ago
There are other benefits to using FW 3.30[1] over 3.2 wrt hardware support and features actually working (ie- IOMMU, PCI reset, ACS, etc).

[1] https://www.asrock.com/MB/AMD/X399%20Taichi/index.asp#BIOS

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drewg123 2767 days ago
All I see in 3.30 is "Update "MdeModulePkg" module to improve M.2 RAID compatibility." I'd be thrilled if IOMMU support got better, but how can I tell from that? Eg, why do you say IOMMU support will improve? Are there more detailed release notes hidden someplace?

FWIW, I'm typing this on chrome running in a bhyve VM, and I pass a USB controller through via PCI-passthru (using IOMMU) for webcam and U2F dongle use by chrome.. The FreeBSD IOMMU driver whines a bit, but I just assumed that was buggy FreeBSD IOMMU support. Eg: "ivhd0: Error: completion failed tail:0x7e0, head:0x0."

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