From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: "Cédric Le Goater" <clg@kaod.org>,
"David Gibson" <david@gibson.dropbear.id.au>
Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, Greg Kurz <groug@kaod.org>
Subject: Re: [Qemu-devel] [PATCH v2 02/19] spapr: introduce a skeleton for the XIVE interrupt controller
Date: Thu, 18 Jan 2018 08:27:52 +1100 [thread overview]
Message-ID: <1516224472.31850.193.camel@kernel.crashing.org> (raw)
In-Reply-To: <2226ed5e-f666-8060-2edd-998d2f5107ed@kaod.org>
On Wed, 2018-01-17 at 15:39 +0100, Cédric Le Goater wrote:
> Migration is a problem. We will need both backend QEMU objects to be
> available anyhow if we want to migrate. So we are back to the current
> solution creating both QEMU objects but we can try to defer some of the
> KVM inits and create the KVM device on demand at CAS time.
Do we have a way to migrate a piece of info from the machine *first*
that indicate what type of XICS/XIVE to instanciate ?
> The next problem is the ICP object that currently needs the KVM device
> fd to connect the vcpus ... So, we will need to change that also.
> That is probably the biggest problem today. We need a way to disconnect
> the vpcu from the KVM device and see how we can defer the connection.
> I need to make sure this is possible, I can check that without XIVE
Ben.
next prev parent reply other threads:[~2018-01-17 21:28 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-09 8:43 [Qemu-devel] [PATCH v2 00/19] spapr: Guest exploitation of the XIVE interrupt controller (POWER9) Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 01/19] dma-helpers: add a return value to store helpers Cédric Le Goater
2017-12-19 4:46 ` David Gibson
2017-12-19 6:43 ` Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 02/19] spapr: introduce a skeleton for the XIVE interrupt controller Cédric Le Goater
2017-12-09 14:06 ` Cédric Le Goater
2017-12-20 5:09 ` David Gibson
2017-12-20 7:38 ` Cédric Le Goater
2018-04-12 5:07 ` David Gibson
2018-04-12 8:18 ` Cédric Le Goater
2018-04-16 4:26 ` David Gibson
2018-04-19 17:40 ` Cédric Le Goater
2018-04-26 5:36 ` David Gibson
2018-04-26 8:17 ` Cédric Le Goater
2018-05-03 2:29 ` David Gibson
2018-05-03 8:43 ` Cédric Le Goater
2018-05-04 6:35 ` David Gibson
2018-05-04 15:35 ` Cédric Le Goater
2017-12-21 0:12 ` Benjamin Herrenschmidt
2017-12-21 9:16 ` Cédric Le Goater
2017-12-21 10:09 ` Cédric Le Goater
2017-12-21 22:53 ` Benjamin Herrenschmidt
2018-01-17 9:18 ` Cédric Le Goater
2018-01-17 11:10 ` Benjamin Herrenschmidt
2018-01-17 14:39 ` Cédric Le Goater
2018-01-17 17:57 ` Cédric Le Goater
2018-01-17 21:27 ` Benjamin Herrenschmidt [this message]
2018-01-18 13:27 ` Cédric Le Goater
2018-01-18 21:08 ` Benjamin Herrenschmidt
2018-02-11 8:08 ` David Gibson
2018-02-11 22:55 ` Benjamin Herrenschmidt
2018-02-12 2:02 ` Alexey Kardashevskiy
2018-02-12 12:20 ` [Qemu-devel] [Qemu-ppc] " Andrea Bolognani
2018-02-12 14:40 ` Benjamin Herrenschmidt
2018-02-13 1:11 ` Alexey Kardashevskiy
2018-02-13 7:40 ` Cédric Le Goater
2018-02-12 7:10 ` [Qemu-devel] " Cédric Le Goater
2018-04-12 5:16 ` David Gibson
2018-04-12 8:36 ` Cédric Le Goater
2018-04-16 4:29 ` David Gibson
2018-04-19 13:01 ` Cédric Le Goater
2018-04-12 5:15 ` David Gibson
2018-04-12 8:51 ` Cédric Le Goater
2018-04-12 5:10 ` David Gibson
2018-04-12 8:41 ` Cédric Le Goater
2018-04-12 5:08 ` David Gibson
2018-04-12 8:28 ` Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 03/19] spapr: introduce the XIVE interrupt sources Cédric Le Goater
2017-12-14 15:24 ` Cédric Le Goater
2017-12-18 0:59 ` Benjamin Herrenschmidt
2017-12-19 6:37 ` Cédric Le Goater
2017-12-20 5:13 ` David Gibson
2017-12-20 5:22 ` David Gibson
2017-12-20 7:54 ` Cédric Le Goater
2017-12-20 18:08 ` Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 04/19] spapr: add support for the LSI " Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 05/19] spapr: introduce a XIVE interrupt presenter model Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 06/19] spapr: introduce the XIVE Event Queues Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 07/19] spapr: push the XIVE EQ data in OS event queue Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 08/19] spapr: notify the CPU when the XIVE interrupt priority is more privileged Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 09/19] spapr: add support for the SET_OS_PENDING command (XIVE) Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 10/19] spapr: introduce a 'xive_exploitation' boolean to enable XIVE Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 11/19] spapr: add a sPAPRXive object to the machine Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 12/19] spapr: add hcalls support for the XIVE exploitation interrupt mode Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 13/19] spapr: add device tree support for the XIVE " Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 14/19] spapr: introduce a helper to map the XIVE memory regions Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 15/19] spapr: add XIVE support to spapr_qirq() Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 16/19] spapr: introduce a spapr_icp_create() helper Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 17/19] spapr: toggle the ICP depending on the selected interrupt mode Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 18/19] spapr: add support to dump XIVE information Cédric Le Goater
2017-12-09 8:43 ` [Qemu-devel] [PATCH v2 19/19] spapr: advertise XIVE exploitation mode in CAS Cédric Le Goater
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1516224472.31850.193.camel@kernel.crashing.org \
--to=benh@kernel.crashing.org \
--cc=clg@kaod.org \
--cc=david@gibson.dropbear.id.au \
--cc=groug@kaod.org \
--cc=qemu-devel@nongnu.org \
--cc=qemu-ppc@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.