Date: Tue, 19 Dec 2017 16:46:15 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-ppc@FreeBSD.org Subject: [Bug 224437] [PATCH] powerpc64: Fix cookie verification on boot Message-ID: <bug-224437-21-BnzrMkkxHk@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-224437-21@https.bugs.freebsd.org/bugzilla/> References: <bug-224437-21@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D224437 --- Comment #1 from commit-hook@freebsd.org --- A commit references this bug: Author: nwhitehorn Date: Tue Dec 19 16:45:41 UTC 2017 New revision: 326981 URL: https://svnweb.freebsd.org/changeset/base/326981 Log: The highest-order bit of the bootloader cookie is 1, with the result that the 32-bit cookie can be sign-extended on its way out of the loader and through Open Firmware. If sign-extended, the in-kernel check of its value would fail on 64-bit systems, resulting in a mountroot prompt. Solve this by telling the kernel to ignore the high-order bits. PR: kern/224437 Submitted by: Gustavo Romero Changes: head/sys/powerpc/booke/booke_machdep.c head/sys/powerpc/powerpc/machdep.c --=20 You are receiving this mail because: You are the assignee for the bug.=
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