From: Thomas Huth <1630527@bugs.launchpad.net>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [Bug 1630527] Re: qemu/hw/i386/amd_iommu.c:188: possible bad shift ?
Date: Mon, 16 Jan 2017 11:45:06 -0000 [thread overview]
Message-ID: <20170116114506.20360.54852.malone@wampee.canonical.com> (raw)
In-Reply-To: 20161005105036.22226.42277.malonedeb@soybean.canonical.com
Released with v2.8
** Changed in: qemu
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1630527
Title:
qemu/hw/i386/amd_iommu.c:188: possible bad shift ?
Status in QEMU:
Fix Released
Bug description:
qemu/hw/i386/amd_iommu.c:188]: (error) Shifting 32-bit value by 64
bits is undefined behaviour
Source code is
uint64_t mask = ((1 << length) - 1) << bitpos;
Maybe better code
uint64_t mask = ((1ULL << length) - 1) << bitpos;
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prev parent reply other threads:[~2017-01-16 11:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-05 10:50 [Qemu-devel] [Bug 1630527] [NEW] qemu/hw/i386/amd_iommu.c:188: possible bad shift ? dcb
2016-10-12 14:54 ` [Qemu-devel] [Bug 1630527] " T. Huth
2017-01-16 11:45 ` Thomas Huth [this message]
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