Messages in this thread | | | Date | Thu, 06 Mar 2014 21:03:50 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [qemu64,+smep,+smap] WARNING: CPU: 1 PID: 0 at arch/x86/kernel/cpu/amd.c:220 init_amd() |
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On 03/06/2014 05:58 PM, Fengguang Wu wrote: > Hi all, > > I find the below WARNING shows up only in > > qemu-system-x86_64 -cpu qemu64,+smep,+smap >
Yes, it is because Qemu doesn't show the AMD-specific SMP CPUID bit. It's harmless in that sense.
Unfortunately these things are hard to fix in Qemu.
-hpa
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