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x86/vmware: Avoid TSC recalibration when frequency is known
When the TSC frequency is known because it is retrieved from the hypervisor, skip TSC refined calibration by setting X86_FEATURE_TSC_KNOWN_FREQ. Signed-off-by: Alexey Makhalov <amakhalov@vmware.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210105004752.131069-1-amakhalov@vmware.com
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@ -378,6 +378,8 @@ static void __init vmware_set_capabilities(void)
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{
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setup_force_cpu_cap(X86_FEATURE_CONSTANT_TSC);
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setup_force_cpu_cap(X86_FEATURE_TSC_RELIABLE);
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if (vmware_tsc_khz)
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setup_force_cpu_cap(X86_FEATURE_TSC_KNOWN_FREQ);
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if (vmware_hypercall_mode == CPUID_VMWARE_FEATURES_ECX_VMCALL)
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setup_force_cpu_cap(X86_FEATURE_VMCALL);
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else if (vmware_hypercall_mode == CPUID_VMWARE_FEATURES_ECX_VMMCALL)
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