[Bug 288122] msi_map: unsupported destination APIC ID 257
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Date: Sun, 22 Feb 2026 14:44:59 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=288122 --- Comment #17 from dwmw2@infradead.org --- There's mojibake in the patch cherry picked from Xen. And is the change to MSI composition sufficient to make the I/O APIC work too? In an ideal design it should be as the I/O APIC RTE is just a bit-shuffled version of the MSI address/data bits, so you can compose the "upstream" MSI message according to the IOMMU or direct 8-bit or 15-bit mode, and have no special cases in your I/O APIC driver for those modes; just shift the bits around. -- You are receiving this mail because: You are the assignee for the bug.