From: Thomas Gleixner <tglx@linutronix.de>
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
Date: Fri, 02 Aug 2024 14:57:38 +0200 [thread overview]
Message-ID: <87cymr13r1.ffs@tglx> (raw)
In-Reply-To: <3fe4502f-020e-46de-976a-b32a76de478a@p183>
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() ......
prev parent reply other threads:[~2024-08-02 12:57 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-01 19:16 [PATCH 1/3] xen, pvh: fix unbootable VMs (PVH + KASAN) Alexey Dobriyan
2024-08-02 5:44 ` Jürgen Groß
2024-08-02 8:50 ` [PATCH 2/3] x86/cpu: fix unbootable VMs by inlining memcmp in hypervisor_cpuid_base Alexey Dobriyan
2024-08-02 12:56 ` Thomas Gleixner
2024-08-02 13:25 ` Nikolay Borisov
2024-08-02 13:29 ` Thomas Gleixner
2024-08-02 8:53 ` [PATCH 3/3] xen, pvh: fix unbootable VMs by inlining memset in xen_prepare_pvh Alexey Dobriyan
2024-08-02 12:57 ` Thomas Gleixner [this message]
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