From: Gerd Hoffmann <kraxel@redhat.com>
To: Sasha Levin <sasha.levin@oracle.com>
Cc: kvm@vger.kernel.org, andre.przywara@arm.com, will.deacon@arm.com,
josh@joshtriplett.org, penberg@kernel.org, asias.hejun@gmail.com,
virtualization@lists.linux-foundation.org, mst@redhat.com,
rusty@rustcorp.com.au
Subject: Re: [RFC] kvmtool: add support for modern virtio-pci
Date: Thu, 19 Nov 2015 08:21:10 +0100 [thread overview]
Message-ID: <1447917670.25140.3.camel@redhat.com> (raw)
In-Reply-To: <564D49A7.30400@oracle.com>
On Mi, 2015-11-18 at 23:01 -0500, Sasha Levin wrote:
> On 11/18/2015 11:00 PM, Sasha Levin wrote:
> > Anyways, I debugged it for a bit a found that seabios attempts to write to
> > the notification BAR, I look further tomorrow to narrow it down and fix it.
>
> Err, *read*, obviously.
>
> I've never implemented that because the kernel doesn't try to do that (it doesn't
> make much sense, I think...).
It doesn't make sense indeed (kvmtool still shouldn't segfault though),
and on a quick look I can't spot a place in seabios doing that ...
It's reading ISR, as part of device reset, to make sure any pending
interrupts are cleared.
cheers,
Gerd
next prev parent reply other threads:[~2015-11-19 7:21 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-18 5:11 [RFC] kvmtool: add support for modern virtio-pci Sasha Levin
2015-11-18 8:22 ` Gerd Hoffmann
2015-11-18 8:22 ` Gerd Hoffmann
2015-11-18 15:23 ` Sasha Levin
2015-11-18 17:52 ` Gerd Hoffmann
2015-11-18 17:52 ` Gerd Hoffmann
2015-11-19 4:00 ` Sasha Levin
2015-11-19 4:01 ` Sasha Levin
2015-11-19 7:21 ` Gerd Hoffmann [this message]
2015-11-19 13:41 ` Sasha Levin
2015-11-19 14:55 ` Gerd Hoffmann
2015-11-19 14:55 ` Gerd Hoffmann
2015-11-19 7:21 ` Gerd Hoffmann
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