Messages in this thread | | | Date | Wed, 12 Jul 2017 15:47:06 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH] x86/kernel/cpu/amd.c: don't apply the lahf_lm workaround in a hypervisor |
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On Wed, Jul 12, 2017 at 03:19:56AM -0400, Mikulas Patocka wrote: > When I start a virtual machine, kvm complains about accesses to an unknown > MSR ("vcpu0 unhandled rdmsr: 0xc001100d"). This is caused by the code in > init_amd_k8 that tries to work around a BIOS bug that incorrectly sets > lahf_lm.
No need - there are a lot of qemu configurations which cause the unhandled MSR warning so no need to pollute the kernel unnecessarily. The warning is harmless at that.
-- Regards/Gruss, Boris.
ECO tip #101: Trim your mails when you reply. --
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