linux-kernel - Re: [PATCH 2/2] KVM: X86: Add per-VM no-HLT-exiting capability

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Date:   Fri, 2 Feb 2018 20:02:43 +0100
From:   Radim Krčmář <rkrcmar@...hat.com>
To:     Wanpeng Li <kernellwp@...il.com>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        Paolo Bonzini <pbonzini@...hat.com>
Subject: Re: [PATCH 2/2] KVM: X86: Add per-VM no-HLT-exiting capability

2018-02-01 23:11-0800, Wanpeng Li:
> From: Wanpeng Li <wanpengli@...cent.com>
> 
> If host CPUs are dedicated to a VM, we can avoid VM exits on HLT.
> This patch adds the per-VM non-HLT-exiting capability.
> 
> Cc: Paolo Bonzini <pbonzini@...hat.com>
> Cc: Radim Krčmář <rkrcmar@...hat.com>
> Signed-off-by: Wanpeng Li <wanpengli@...cent.com>
> ---

SMM handling needs more work: I think we should vmx_clear_hlt() upon SMI
and RSM needs to implement auto halt restart (AMD might differ).

And also look if we don't need vmx_clear_hlt() around INIT handling,
thanks.