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From: Thomas Gleixner <tglx@linutronix.de>
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To: Alexey Dobriyan <adobriyan@gmail.com>, Juergen Gross <jgross@suse.com>,
 Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] xen, pvh: fix unbootable VMs by inlining memset in
 xen_prepare_pvh
In-Reply-To: <3fe4502f-020e-46de-976a-b32a76de478a@p183>
References: <a9f505a6-fd31-4cfa-a193-d21638bb14f1@p183>
 <3fe4502f-020e-46de-976a-b32a76de478a@p183>
Date: Fri, 02 Aug 2024 14:57:38 +0200
Message-ID: <87cymr13r1.ffs@tglx>
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On Fri, Aug 02 2024 at 11:53, Alexey Dobriyan wrote:
> If this memset() is not inlined than PVH early boot code can call
> into KASAN-instrumented memset() which results in unbootable VMs.
>
> Ubuntu's 22.04.4 LTS gcc version 11.4.0 (Ubuntu 11.4.0-1ubuntu1~22.04)
> doesn't inline this memset but inlines __builtin_memset.

memset() ......