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Re: [Qemu-devel] Qemu deadlocks in tb_lock when using SVM+SoftMMU

From: Richard Henderson
Subject: Re: [Qemu-devel] Qemu deadlocks in tb_lock when using SVM+SoftMMU
Date: Tue, 7 Mar 2017 06:21:34 +1100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0 
On 03/07/2017 03:58 AM, Paolo Bonzini wrote:

On 06/03/2017 02:34, Richard Henderson wrote:

My guess is that everything from cpu_svm_check_intercept_param on should
be done from do_interrupt instead of during raise_interrupt.



From cpu_svm_check_intercept_param, or from cpu_vmexit?  The former seems

to be too early because it will usually not even do anything, but treating
cpu_vmexit like an exception is a very good idea indeed.  This is my
uncompiled take.


I hadn't considered that approach.  But it looks very plausible.


r~
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