linux-kernel - Re: [PATCH 0/7] KVM: x86: Let the guest write to multiple debug registers with one vmexit

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Message-ID: <531C26C4.2090205@redhat.com>
Date:	Sun, 09 Mar 2014 09:31:00 +0100
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Jan Kiszka <jan.kiszka@....de>, linux-kernel@...r.kernel.org
CC:	kvm@...r.kernel.org, alex.williamson@...hat.com,
	mtosatti@...hat.com, gleb@...nel.org
Subject: Re: [PATCH 0/7] KVM: x86: Let the guest write to multiple debug registers
 with one vmexit

Il 09/03/2014 09:15, Jan Kiszka ha scritto:
>> > This looks good now to me from KVM perspective. I was just wondering how
>> > the case is handled that the host used debug registers on the thread the
>> > runs a VCPU? What if I set a hw breakpoint on its userspace path e.g.?
>> > What if I debug the kernel side with kgdb?
> Ah, this part didn't change, we still switch between host and guest
> state on vmentries/exits. All fine!

Yes, that's why sync_dirty_debug_regs is added so early.  Thanks for the 
review.

Paolo
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