From: Avi Kivity <avi@redhat.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: kvm-devel <kvm@vger.kernel.org>
Subject: Re: KVM: PIC: enhance IPI avoidance
Date: Wed, 24 Sep 2008 17:49:37 +0300 [thread overview]
Message-ID: <48DA5381.6030301@redhat.com> (raw)
In-Reply-To: <20080924144038.GA5991@dmt.cnet>
Marcelo Tosatti wrote:
>
>> and by register load from userspace, no?
>>
>
> Isnt that responsability of the guest?
I'm talking about a restore to previous state scenario. In this case we
want to disable any IPI avoidance in case it avoids a needed IPI.
> Unacked IOAPIC interrupts are not
> cleared on register load, are they?
>
>
Good question. I don't know if they should or shouldn't. But that's a
different question. isr_ack is not guest visible, so nothing is lost
from clearing it, but we can fail if we don't clear it.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2008-09-24 14:49 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-22 16:57 KVM: PIC: enhance IPI avoidance Marcelo Tosatti
2008-09-24 3:05 ` David S. Ahern
2008-09-24 12:19 ` Avi Kivity
2008-09-24 14:40 ` Marcelo Tosatti
2008-09-24 14:49 ` Avi Kivity [this message]
2008-09-24 23:28 ` Marcelo Tosatti
2008-09-25 10:18 ` Avi Kivity
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