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There is one test that tests `IOMMUPlatform` for `FSDevice`: https://github.com/kata-containers/govmm/blob/263136e69ac80bf0a0136b26e82b8dcbe3328d6a/qemu/qemu_s390x_test.go#L84
but that's 25 lines for…
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How do we take advantage of this feature? Does it buy us anything performance wise? Setup wise?
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- Several requirements appear to be duplicative of requirements in other specifications - in
particular, the PCIe Specification. Consider removing these requirements from the
RISC-V Server SoC S…
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Does RISC-V support guest interrupt pass-through, and how can MSI interrupts be directly sent to a guest?
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## Main idea
IOMMU成为IO的bottleneck,这篇文章找到了两个当前IOMMU使用上的两个bottlenecks: IOVA分配与IOMMU 的iotlb。
## Key insight
## My comments
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Reference: https://lists.riscv.org/g/tech-ap-tee-io/topic/103498833#47
> The IDE link initial setup must go through the following steps:
It is not stated that IOMMU-MTT must also be enforced for…
jyao1 updated
3 months ago
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Booting a powernv box with `iommu=nobypass` dmesg says:
```
[ 0.000000] PowerNV: IOMMU bypass window disabled.
...
[ 2.723971] pci 0001:08 : [PE# fd] Using 64-bit DMA iommu bypass (thr…
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Trying to pass an amd radeon 6800 and it doesn't work cpu is amd ryzen 7 5700g and motherboard is gigabyte b550 gaming x v2 the distro I am using is archcraft.
The modules in /etc/mkinitcpio.conf are…
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Drop `iommu=no-igfx` option.
See https://github.com/QubesOS/qubes-issues/issues/2836#issuecomment-305780009
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alsa-info: http://alsa-project.org/db/?f=4c40d6b4f04981eab230e4425cef7aabfeffac44
After applying patch from https://github.com/thesofproject/linux/issues/5038, the speakers really started working, …