Date: Wed, 09 Aug 2023 18:17:48 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 273022] MSI/MSI-X assignment fails if APIC ID > 255 Message-ID: <bug-273022-227-nqGQLD8YaI@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-273022-227@https.bugs.freebsd.org/bugzilla/> References: <bug-273022-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D273022 --- Comment #2 from commit-hook@FreeBSD.org --- A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=3Dcbf845052f1c2862a64e66dbaf38e887a= 7592474 commit cbf845052f1c2862a64e66dbaf38e887a7592474 Author: Ed Maste <emaste@FreeBSD.org> AuthorDate: 2023-08-08 23:42:09 +0000 Commit: Ed Maste <emaste@FreeBSD.org> CommitDate: 2023-08-09 17:52:43 +0000 msi: report error for attempt to use APIC ID > 255 The MSI/MSI-X address includes 8 bits to encode the Destination ID. Previously IDs over 255 overlapped with the fixed portion of the address, resulting in an invalid value (and a nonfunctional interrupt). Instead, print an error message and return EINVAL. The interrupt will still not work, but the user will have a clue as to why. PR: 273022 Reviewed by: jhb Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D41395 sys/x86/x86/msi.c | 5 +++++ 1 file changed, 5 insertions(+) --=20 You are receiving this mail because: You are the assignee for the bug.=
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