On Thu, Nov 12, 2015 at 11:56:12AM +0100, Borislav Petkov wrote:
> diff --git a/arch/x86/kernel/cpu/perf_event_intel_pt.c
> b/arch/x86/kernel/cpu/perf_event_intel_pt.c
> index 42169283448b..fa1262b025e7 100644
> --- a/arch/x86/kernel/cpu/perf_event_intel_pt.c
> +++ b/arch/x86/kernel/cpu/perf_event
From: Borislav Petkov
This keeps poking at MSR 0x570 when loading, i.e. MSR_IA32_RTIT_CTL,
which is most likely not present on other vendors. It is using the _safe
variant but there's no need to try it at all, really. Besides, it causes
unhandled rdmsr warnings when booting in a guest:
kvm [441
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