On 11/19/2015 02:21 AM, Gerd Hoffmann wrote: > 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.
That was indeed the ISR field. Fixing that makes seabios reach the same point as legacy virtio before failing. I don't see the original correspondence about seabios failures you've reported, if you want to forward them over we can look at it further. Thanks, Sasha _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
