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Integrating the following commit(s) to linux-yocto/6.6: 1/1 [ Author: Bruce Ashfield Email: bruce.ashfield@gmail.com Subject: cpu/amd: inhibit SMP check for qemux86 Date: Fri, 28 Jun 2024 12:55:18 -0400 When booting with kvm enabled on a AMD host, the following trace is thrown: [ 0.084519] ------------[ cut here ]------------ [ 0.084519] WARNING: This combination of AMD processors is not suitable for SMP. [ 0.084519] WARNING: CPU: 1 PID: 0 at /arch/x86/kernel/cpu/amd.c:341 init_amd+0xaee/0xbcc [ 0.084519] Modules linked in: [ 0.084519] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.6.32-yocto-standard #1 [ 0.084519] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 This warning is not valid in our configuration and is unnecesarily causing issue with debug. This has been know for some time (10+ years), but no acceptable solutioon has been found upstream: https://lists.gnu.org/archive/html/qemu-devel/2010-03/msg01428.html https://lkml.org/lkml/2010/3/30/397 We have a configuration CONFIG_QEMUX86 that has been added for situations like this. When that value is defined, we inhibit the warning, but leave it as-is for other BSPs. Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com> ] (From OE-Core rev: f05ba46c06514ffaa3426cee9f1169c66a423cb5) Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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