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Re: [Qemu-devel] Re: [PATCH 0/8] kvm: Fixes, cleanups and live migratio

From: Avi Kivity
Subject: Re: [Qemu-devel] Re: [PATCH 0/8] kvm: Fixes, cleanups and live migration
Date: Sun, 03 May 2009 10:36:54 +0300
User-agent: Thunderbird (X11/20090320)

Gleb Natapov wrote:
I don't think it's necessary. We can record the software interrupt at the end of the instruction that generated it, and give it higher priority than a pending external interrupt. On vmx, decrement RIP and set entry instruction length = 1 before injection.
And get wrong error value when exception happens during soft interrupt
delivery? I don't like all those tricks. They work only if everything
happens like you expected and breaks completely when it is not.

Er, yes.

On svm, use EVENTINJ and forget about the instruction length.

On SVM we do not re-inject soft int/exception at all, but re-execute the
offending instruction.

Maybe we should unexecute the software interrupt instruction on Intel and get the same effect.

error compiling committee.c: too many arguments to function

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