From: "Marek Marczykowski-Górecki" <marmarek@invisiblethingslab.com>
To: "Roger Pau Monné" <roger.pau@citrix.com>
Cc: James McKenzie <james.mckenzie@bromium.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Jason Andryuk <jandryuk@gmail.com>,
qemu-devel@nongnu.org, Paul Durrant <paul.durrant@citrix.com>,
Anthony Perard <anthony.perard@citrix.com>,
xen-devel@lists.xenproject.org
Subject: Re: [PATCH 5/6] xen-pt: Hide MSI-X from xen stubdoms
Date: Tue, 12 Mar 2019 13:38:08 +0100 [thread overview]
Message-ID: <20190312123808.GG1208@mail-itl> (raw)
In-Reply-To: <20190312120419.2fdqh3atomnafvby@Air-de-Roger>
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On Tue, Mar 12, 2019 at 01:04:19PM +0100, Roger Pau Monné wrote:
> On Mon, Mar 11, 2019 at 02:02:15PM -0400, Jason Andryuk wrote:
> > MSI-X is not supported in Xen stubdoms, so it must be disabled. Use the
> > existing xen_pt_hide_dev_cap to hide when running under -xen-stubdom.
>
> I'm afraid this requires some more context. What's the actual issue
> that prevents MSI-X from working?
At least missing "Fix PCI passthrough for HVM with stubdomain" series,
but that's mostly on Xen side (+ one change how QEMU enable MSI-X in
config space).
Some of it can be worked around by enabling permissive mode. Jason, did
you had a chance to test it with any MSI-X device?
I'm not aware of anything thing particular that breaks MSI-X but not
MSI. Besides much less devices lying around to test MSI-X...
--
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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next prev parent reply other threads:[~2019-03-12 12:38 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-11 18:02 [Qemu-devel] [PATCH 0/6] Xen stubdom support Jason Andryuk
2019-03-11 18:02 ` Jason Andryuk
2019-03-11 18:02 ` [Qemu-devel] [PATCH 1/6] xen: Introduce -xen-stubdom option Jason Andryuk
2019-03-11 18:02 ` Jason Andryuk
2019-03-11 18:06 ` [Qemu-devel] " Paolo Bonzini
2019-03-11 18:06 ` Paolo Bonzini
2019-03-11 19:46 ` [Qemu-devel] " Jason Andryuk
2019-03-11 19:46 ` Jason Andryuk
2019-03-11 18:02 ` [Qemu-devel] [PATCH 2/6] xen: Move xenstore initialization to common location Jason Andryuk
2019-03-11 18:02 ` Jason Andryuk
2019-03-13 15:01 ` Paul Durrant
2019-03-13 18:11 ` Jason Andryuk
2019-03-14 14:00 ` Paul Durrant
2019-03-11 18:02 ` [Qemu-devel] [PATCH 3/6] xen: Skip backend initialization for stubdom Jason Andryuk
2019-03-11 18:02 ` Jason Andryuk
2019-03-13 15:04 ` Paul Durrant
2019-03-11 18:02 ` [Qemu-devel] [PATCH 4/6] xen: Set HVM_PARAM_DM_DOMAIN for stubdom on older Xen Jason Andryuk
2019-03-11 18:02 ` Jason Andryuk
2019-03-11 18:02 ` [Qemu-devel] [PATCH 5/6] xen-pt: Hide MSI-X from xen stubdoms Jason Andryuk
2019-03-11 18:02 ` Jason Andryuk
2019-03-12 12:04 ` Roger Pau Monné
2019-03-12 12:38 ` Marek Marczykowski-Górecki [this message]
2019-03-12 13:58 ` Jason Andryuk
2019-03-12 14:13 ` Roger Pau Monné
2019-03-12 15:15 ` Jason Andryuk
2019-03-13 2:15 ` Jason Andryuk
2019-03-12 14:29 ` Marek Marczykowski-Górecki
2019-03-11 18:02 ` [Qemu-devel] [PATCH 6/6] xen-pt: Round pci regions sizes to XEN_PAGE_SIZE Jason Andryuk
2019-03-11 18:02 ` Jason Andryuk
2019-03-13 15:09 ` Paul Durrant
2019-03-14 18:15 ` Jason Andryuk
2019-03-14 19:22 ` Simon Gaiser
2019-03-14 19:37 ` Andrew Cooper
2019-03-15 9:12 ` Paul Durrant
2019-03-14 20:45 ` Simon Gaiser
2019-03-15 9:17 ` Paul Durrant
2019-03-15 16:28 ` Andrew Cooper
2019-03-20 17:28 ` Jason Andryuk
2019-03-22 3:09 ` Roger Pau Monné
2019-03-22 19:43 ` Jason Andryuk
2020-01-13 19:01 ` [Xen-devel] " Jason Andryuk
2020-01-13 19:01 ` Jason Andryuk
2020-01-14 10:04 ` Roger Pau Monné
2020-01-14 10:04 ` Roger Pau Monné
2020-01-14 14:41 ` Jason Andryuk
2020-01-14 14:41 ` Jason Andryuk
2020-01-14 18:04 ` Roger Pau Monné
2020-01-14 18:04 ` Roger Pau Monné
2020-01-15 8:33 ` Durrant, Paul
2020-01-15 8:33 ` Durrant, Paul
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