Messages in this thread | | | Subject | Re: [PATCH v1 4/4] x86/msr: Do not allow writes to MSR_IA32_ENERGY_PERF_BIAS | From | Shuah Khan <> | Date | Fri, 30 Oct 2020 11:12:50 -0600 |
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On 10/29/20 1:02 PM, Borislav Petkov wrote: > From: Borislav Petkov <bp@suse.de> > > Now that all in-kernel-tree users are converted to using the sysfs file, > remove the MSR from the "allowlist". > > Signed-off-by: Borislav Petkov <bp@suse.de> > --- > arch/x86/kernel/msr.c | 3 --- > 1 file changed, 3 deletions(-) > > diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c > index c0d409810658..b1147862730c 100644 > --- a/arch/x86/kernel/msr.c > +++ b/arch/x86/kernel/msr.c > @@ -99,9 +99,6 @@ static int filter_write(u32 reg) > if (!__ratelimit(&fw_rs)) > return 0; > > - if (reg == MSR_IA32_ENERGY_PERF_BIAS) > - return 0; > - > pr_err("Write to unrecognized MSR 0x%x by %s (pid: %d). Please report to x86@kernel.org.\n", > reg, current->comm, current->pid); > >
Thanks. Looks good to me.
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
thanks, -- Shuah
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