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From: Paolo Bonzini <pbonzini@redhat.com>
To: Lai Jiangshan <laijs@linux.alibaba.com>,
	Lai Jiangshan <jiangshanlai@gmail.com>,
	linux-kernel@vger.kernel.org
Cc: Sean Christopherson <seanjc@google.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	Wanpeng Li <wanpengli@tencent.com>,
	Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
	kvm@vger.kernel.org
Subject: Re: [PATCH V2 3/3] KVM: X86: Reset DR6 only when KVM_DEBUGREG_WONT_EXIT
Date: Tue, 10 Aug 2021 12:41:03 +0200	[thread overview]
Message-ID: <3cfedf5c-e901-c65c-b654-4d004e79b6b9@redhat.com> (raw)
In-Reply-To: <7a1ca89f-7b4e-7df2-e47a-ac5207137a05@linux.alibaba.com>

On 10/08/21 12:34, Lai Jiangshan wrote:
>>
>> +     * do_debug expects dr6 to be cleared after it runs, avoid that 
>> it sees
>> +     * a stale dr6 from the guest.
>> +     */
> 
> 
> do_debug() is renamed. Maybe you can use "The host kernel #DB handler".

Or exc_debug.

Paolo


  reply	other threads:[~2021-08-10 10:41 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-08 23:29 [PATCH] KVM: X86: Don't reset dr6 unconditionally when the vcpu being scheduled out Lai Jiangshan
2021-08-09 16:54 ` Sean Christopherson
2021-08-09 17:43   ` [PATCH V2 1/3] KVM: X86: Remove unneeded KVM_DEBUGREG_RELOAD Lai Jiangshan
2021-08-09 17:43     ` [PATCH V2 2/3] KVM: X86: Set the hardware DR6 only when KVM_DEBUGREG_WONT_EXIT Lai Jiangshan
2021-08-10 10:07       ` Paolo Bonzini
2021-08-10 10:30         ` Lai Jiangshan
2021-08-10 10:35           ` Paolo Bonzini
2021-08-10 10:46             ` Lai Jiangshan
2021-08-10 12:49               ` Paolo Bonzini
2021-08-09 17:43     ` [PATCH V2 3/3] KVM: X86: Reset " Lai Jiangshan
2021-08-10  9:42       ` Paolo Bonzini
2021-08-10 10:14       ` Paolo Bonzini
2021-08-10 10:34         ` Lai Jiangshan
2021-08-10 10:41           ` Paolo Bonzini [this message]
2021-08-10  9:59   ` [PATCH] KVM: X86: Don't reset dr6 unconditionally when the vcpu being scheduled out Paolo Bonzini

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