[Bug 288122] msi_map: unsupported destination APIC ID 257

In reply to: bugzilla-noreply_a_freebsd.org: "[Bug 288122] msi_map: unsupported destination APIC ID 257"
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From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 30 Jul 2025 14:03:24 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=288122

--- Comment #15 from dwmw2@infradead.org ---
(In reply to John Baldwin from comment #11)
> Can you point to public documentation for the 15-bit APIC ID field in MSI and I/O APIC entries?

I've sent private email asking for feedback especially with FreeBSD specifics
(and for help with the whole problem of getting FreeBSD to boot on
high-cpu-count VMs in general), but for the record:
http://david.woodhou.se/ExtDestId.pdf

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