From: "Michael S. Tsirkin" <mst@redhat.com>
To: Sheng Yang <sheng@linux.intel.com>
Cc: Avi Kivity <avi@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
kvm@vger.kernel.org
Subject: Re: qemu/hw/device-assignment: questions about msix_table_page
Date: Tue, 5 May 2009 12:51:36 +0300 [thread overview]
Message-ID: <20090505095136.GA12797@redhat.com> (raw)
In-Reply-To: <200904272230.18253.sheng@linux.intel.com>
On Mon, Apr 27, 2009 at 10:30:17PM +0800, Sheng Yang wrote:
> > > > > If guest can write to the real device MSI-X table directly, it would
> > > > > cause chaos on interrupt delivery, for what guest see is totally
> > > > > different with what's host see...
> > > >
> > > > Obviously.
> > > >
> > > > Thanks,
>
What's the reason that this page is unmapped from the qemu memory space?
Specifically what do these lines do:
int offset = r_dev->msix_table_addr - real_region->base_addr;
ret = munmap(region->u.r_virtbase + offset, TARGET_PAGE_SIZE);
--
MST
next prev parent reply other threads:[~2009-05-05 9:52 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20090427104117.GB29082@redhat.com>
2009-04-27 13:16 ` Sheng Yang
2009-04-27 13:51 ` qemu/hw/device-assignment: questions about msix_table_page Michael S. Tsirkin
2009-04-27 14:03 ` Sheng Yang
2009-04-27 14:15 ` Michael S. Tsirkin
2009-04-27 14:30 ` Sheng Yang
2009-04-27 14:35 ` Michael S. Tsirkin
2009-05-05 9:51 ` Michael S. Tsirkin [this message]
2009-05-05 10:19 ` Marcelo Tosatti
2009-05-05 10:34 ` Michael S. Tsirkin
2009-05-05 10:49 ` Marcelo Tosatti
2009-05-05 11:45 ` Michael S. Tsirkin
2009-05-05 11:51 ` Marcelo Tosatti
2009-05-05 12:46 ` Michael S. Tsirkin
2009-05-06 2:35 ` Sheng Yang
2009-05-06 7:31 ` Michael S. Tsirkin
2009-05-06 8:17 ` Sheng Yang
2009-04-28 9:31 ` Avi Kivity
2009-04-27 13:13 Michael S. Tsirkin
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