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KVM: X86: Don't use PV TLB flush with dedicated physical CPUs
vCPUs are very unlikely to get preempted when they are the only task running on a CPU. PV TLB flush is slower that the native flush in that case, so disable it. Cc: Paolo Bonzini <[email protected]> Cc: Radim Krčmář <[email protected]> Cc: Eduardo Habkost <[email protected]> Signed-off-by: Wanpeng Li <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]> Signed-off-by: Radim Krčmář <[email protected]>
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