Wanpeng Li 4abaffce4d KVM: LAPIC: Recalculate apic map in batch ... In the vCPU reset and set APIC_BASE MSR path, the apic map will be recalculated several times, each time it will consume 10+ us observed by ftrace in my non-overcommit environment since the expensive memory allocate/mutex/rcu etc operations. This patch optimizes it by recaluating apic map in batch, I hope this can benefit the serverless scenario which can frequently create/destroy VMs. Before patch: kvm_lapic_reset ~27us After patch: kvm_lapic_reset ~14us Observed by ftrace, improve ~48%. Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2020-03-16 17:57:39 +01:00
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asm	KVM: LAPIC: Recalculate apic map in batch	2020-03-16 17:57:39 +01:00
uapi/asm	KVM: nVMX: Emulate MTF when performing instruction emulation	2020-02-23 09:36:23 +01:00