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Re: [Qemu-devel] Re: [PATCH 0/7] KVM SMP support, early version

From: Avi Kivity
Subject: Re: [Qemu-devel] Re: [PATCH 0/7] KVM SMP support, early version
Date: Mon, 30 Nov 2009 18:50:41 +0200
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On Mon, Nov 30, 2009 at 2:40 PM, Avi Kivity <address@hidden> wrote:
On 11/30/2009 05:55 PM, Glauber Costa wrote:

reset code is responsible for most remote calls in qemu. One of the
only ones we still
have left is the gdb stuff. Do you have any suggestion to do that
without the current
on_vcpu mechanism?

No.  But what's wrong with on_vcpu?

intrinsically racy. signal passing slow down things, etc.

That said, as I've stated many times: I don't believe there's anything
fundamentally wrong with on_vcpu. But we might get benefits from a re-design
of things to avoid it whenever possible. (just like the vcpu_reset()
I've just posted)

Glauber  Costa.
"Free as in Freedom"

"The less confident you are, the more serious you have to act."

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