From: Jag Raman <jag.raman@oracle.com>
To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: "Elena Ufimtseva" <elena.ufimtseva@oracle.com>,
"John Johnson" <john.g.johnson@oracle.com>,
"thuth@redhat.com" <thuth@redhat.com>,
"swapnil.ingle@nutanix.com" <swapnil.ingle@nutanix.com>,
"john.levon@nutanix.com" <john.levon@nutanix.com>,
"philmd@redhat.com" <philmd@redhat.com>,
qemu-devel <qemu-devel@nongnu.org>,
"Alex Williamson" <alex.williamson@redhat.com>,
"Marc-André Lureau" <marcandre.lureau@gmail.com>,
"thanos.makatos@nutanix.com" <thanos.makatos@nutanix.com>,
"alex.bennee@linaro.org" <alex.bennee@linaro.org>
Subject: Re: [PATCH RFC server v2 02/11] vfio-user: define vfio-user object
Date: Fri, 10 Sep 2021 14:04:53 +0000 [thread overview]
Message-ID: <E6C1C362-D681-4DC9-B107-43CBB0D235DA@oracle.com> (raw)
In-Reply-To: <YTiuih20Ka5yPPF/@stefanha-x1.localdomain>
> On Sep 8, 2021, at 8:37 AM, Stefan Hajnoczi <stefanha@redhat.com> wrote:
>
> On Fri, Aug 27, 2021 at 01:53:21PM -0400, Jagannathan Raman wrote:
>> Define vfio-user object which is remote process server for QEMU. Setup
>> object initialization functions and properties necessary to instantiate
>> the object
>>
>> Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
>> Signed-off-by: John G Johnson <john.g.johnson@oracle.com>
>> Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
>> ---
>> qapi/qom.json | 20 ++++++-
>> hw/remote/vfio-user-obj.c | 145 ++++++++++++++++++++++++++++++++++++++++++++++
>> MAINTAINERS | 1 +
>> hw/remote/meson.build | 1 +
>> hw/remote/trace-events | 3 +
>> 5 files changed, 168 insertions(+), 2 deletions(-)
>> create mode 100644 hw/remote/vfio-user-obj.c
>>
>> diff --git a/qapi/qom.json b/qapi/qom.json
>> index a25616b..3e941ee 100644
>> --- a/qapi/qom.json
>> +++ b/qapi/qom.json
>> @@ -689,6 +689,20 @@
>> 'data': { 'fd': 'str', 'devid': 'str' } }
>>
>> ##
>> +# @VfioUserProperties:
>> +#
>> +# Properties for vfio-user objects.
>> +#
>> +# @socket: path to be used as socket by the libvfiouser library
>> +#
>> +# @devid: the id of the device to be associated with the file descriptor
>> +#
>> +# Since: 6.0
>> +##
>> +{ 'struct': 'VfioUserProperties',
>> + 'data': { 'socket': 'str', 'devid': 'str' } }
>
> Please use 'SocketAddress' for socket instead of 'str'. That way file
> descriptor passing is easy to support and additional socket address
> families can be supported in the future.
OK, will do.
>
>> +
>> +##
>> # @RngProperties:
>> #
>> # Properties for objects of classes derived from rng.
>> @@ -812,7 +826,8 @@
>> 'tls-creds-psk',
>> 'tls-creds-x509',
>> 'tls-cipher-suites',
>> - 'x-remote-object'
>> + 'x-remote-object',
>> + 'vfio-user'
>> ] }
>>
>> ##
>> @@ -868,7 +883,8 @@
>> 'tls-creds-psk': 'TlsCredsPskProperties',
>> 'tls-creds-x509': 'TlsCredsX509Properties',
>> 'tls-cipher-suites': 'TlsCredsProperties',
>> - 'x-remote-object': 'RemoteObjectProperties'
>> + 'x-remote-object': 'RemoteObjectProperties',
>> + 'vfio-user': 'VfioUserProperties'
>
> "vfio-user" doesn't communicate whether this is a client or server. Is
> "vfio-user-server" clearer?
“vfio-user-server” sounds better.
>
>> } }
>>
>> ##
>> diff --git a/hw/remote/vfio-user-obj.c b/hw/remote/vfio-user-obj.c
>> new file mode 100644
>> index 0000000..4a1e297
>> --- /dev/null
>> +++ b/hw/remote/vfio-user-obj.c
>> @@ -0,0 +1,145 @@
>> +/**
>> + * QEMU vfio-user server object
>> + *
>> + * Copyright © 2021 Oracle and/or its affiliates.
>> + *
>> + * This work is licensed under the terms of the GNU GPL-v2, version 2 or later.
>> + *
>> + * See the COPYING file in the top-level directory.
>> + *
>> + */
>> +
>> +/**
>> + * Usage: add options:
>> + * -machine x-remote
>> + * -device <PCI-device>,id=<pci-dev-id>
>> + * -object vfio-user,id=<id>,socket=<socket-path>,devid=<pci-dev-id>
>
> I suggest renaming devid= to device= or pci-device= (similar to drive=
> and netdev=) for consistency and to avoid confusion with PCI Device IDs.
OK, will do.
>
>> diff --git a/hw/remote/meson.build b/hw/remote/meson.build
>> index fb35fb8..cd44dfc 100644
>> --- a/hw/remote/meson.build
>> +++ b/hw/remote/meson.build
>> @@ -6,6 +6,7 @@ remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('message.c'))
>> remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('remote-obj.c'))
>> remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('proxy.c'))
>> remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('iohub.c'))
>> +remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('vfio-user-obj.c'))
>
> If you use CONFIG_VFIO_USER_SERVER then it's easier to separate mpqemu
> from vfio-user. Sharing CONFIG_MULTIPROCESS could become messy later.
OK, got it.
--
Jag
next prev parent reply other threads:[~2021-09-10 14:07 UTC|newest]
Thread overview: 108+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-16 16:42 [PATCH RFC v2 00/16] vfio-user implementation Elena Ufimtseva
2021-08-16 16:42 ` [PATCH RFC v2 01/16] vfio-user: introduce vfio-user protocol specification Elena Ufimtseva
2021-08-17 23:04 ` Alex Williamson
2021-08-19 9:28 ` Swapnil Ingle
2021-08-19 15:32 ` John Johnson
2021-08-19 16:26 ` Alex Williamson
2021-08-16 16:42 ` [PATCH RFC v2 02/16] vfio-user: add VFIO base abstract class Elena Ufimtseva
2021-08-16 16:42 ` [PATCH RFC v2 03/16] vfio-user: Define type vfio_user_pci_dev_info Elena Ufimtseva
2021-08-24 13:52 ` Stefan Hajnoczi
2021-08-16 16:42 ` [PATCH RFC v2 04/16] vfio-user: connect vfio proxy to remote server Elena Ufimtseva
2021-08-18 18:47 ` Alex Williamson
2021-08-19 14:10 ` John Johnson
2021-08-24 14:15 ` Stefan Hajnoczi
2021-08-30 3:00 ` John Johnson
2021-09-07 13:21 ` Stefan Hajnoczi
2021-09-09 5:11 ` John Johnson
2021-09-09 6:29 ` Stefan Hajnoczi
2021-09-10 5:25 ` John Johnson
2021-09-13 12:35 ` Stefan Hajnoczi
2021-09-13 17:23 ` John Johnson
2021-09-14 13:06 ` Stefan Hajnoczi
2021-09-15 0:21 ` John Johnson
2021-09-15 13:04 ` Stefan Hajnoczi
2021-09-15 19:14 ` John Johnson
2021-09-16 11:49 ` Stefan Hajnoczi
2021-08-16 16:42 ` [PATCH RFC v2 05/16] vfio-user: define VFIO Proxy and communication functions Elena Ufimtseva
2021-08-24 15:14 ` Stefan Hajnoczi
2021-08-30 3:04 ` John Johnson
2021-09-07 13:35 ` Stefan Hajnoczi
2021-08-16 16:42 ` [PATCH RFC v2 06/16] vfio-user: negotiate version with remote server Elena Ufimtseva
2021-08-24 15:59 ` Stefan Hajnoczi
2021-08-30 3:08 ` John Johnson
2021-09-07 13:52 ` Stefan Hajnoczi
2021-08-16 16:42 ` [PATCH RFC v2 07/16] vfio-user: get device info Elena Ufimtseva
2021-08-24 16:04 ` Stefan Hajnoczi
2021-08-30 3:11 ` John Johnson
2021-09-07 13:54 ` Stefan Hajnoczi
2021-08-16 16:42 ` [PATCH RFC v2 08/16] vfio-user: get region info Elena Ufimtseva
2021-09-07 14:31 ` Stefan Hajnoczi
2021-09-09 5:35 ` John Johnson
2021-09-09 5:59 ` Stefan Hajnoczi
2021-08-16 16:42 ` [PATCH RFC v2 09/16] vfio-user: region read/write Elena Ufimtseva
2021-09-07 14:41 ` Stefan Hajnoczi
2021-09-07 17:24 ` John Levon
2021-09-09 6:00 ` John Johnson
2021-09-09 12:05 ` John Levon
2021-09-10 6:07 ` John Johnson
2021-09-10 12:16 ` John Levon
2021-08-16 16:42 ` [PATCH RFC v2 10/16] vfio-user: pci_user_realize PCI setup Elena Ufimtseva
2021-09-07 15:00 ` Stefan Hajnoczi
2021-08-16 16:42 ` [PATCH RFC v2 11/16] vfio-user: get and set IRQs Elena Ufimtseva
2021-09-07 15:14 ` Stefan Hajnoczi
2021-09-09 5:50 ` John Johnson
2021-09-09 13:50 ` Stefan Hajnoczi
2021-08-16 16:42 ` [PATCH RFC v2 12/16] vfio-user: proxy container connect/disconnect Elena Ufimtseva
2021-09-08 8:30 ` Stefan Hajnoczi
2021-08-16 16:42 ` [PATCH RFC v2 13/16] vfio-user: dma map/unmap operations Elena Ufimtseva
2021-09-08 9:16 ` Stefan Hajnoczi
2021-08-16 16:42 ` [PATCH RFC v2 14/16] vfio-user: dma read/write operations Elena Ufimtseva
2021-09-08 9:51 ` Stefan Hajnoczi
2021-09-08 11:03 ` John Levon
2021-08-16 16:42 ` [PATCH RFC v2 15/16] vfio-user: pci reset Elena Ufimtseva
2021-09-08 9:56 ` Stefan Hajnoczi
2021-08-16 16:42 ` [PATCH RFC v2 16/16] vfio-user: migration support Elena Ufimtseva
2021-09-08 10:04 ` Stefan Hajnoczi
2021-08-27 17:53 ` [PATCH RFC server v2 00/11] vfio-user server in QEMU Jagannathan Raman
2021-08-27 17:53 ` [PATCH RFC server v2 01/11] vfio-user: build library Jagannathan Raman
2021-08-27 18:05 ` Jag Raman
2021-09-08 12:25 ` Stefan Hajnoczi
2021-09-10 15:21 ` Philippe Mathieu-Daudé
2021-09-13 12:15 ` Stefan Hajnoczi
2021-09-10 15:20 ` Philippe Mathieu-Daudé
2021-09-10 17:08 ` Jag Raman
2021-09-11 22:29 ` John Levon
2021-09-13 10:19 ` Philippe Mathieu-Daudé
2021-08-27 17:53 ` [PATCH RFC server v2 02/11] vfio-user: define vfio-user object Jagannathan Raman
2021-09-08 12:37 ` Stefan Hajnoczi
2021-09-10 14:04 ` Jag Raman [this message]
2021-08-27 17:53 ` [PATCH RFC server v2 03/11] vfio-user: instantiate vfio-user context Jagannathan Raman
2021-09-08 12:40 ` Stefan Hajnoczi
2021-09-10 14:58 ` Jag Raman
2021-08-27 17:53 ` [PATCH RFC server v2 04/11] vfio-user: find and init PCI device Jagannathan Raman
2021-09-08 12:43 ` Stefan Hajnoczi
2021-09-10 15:02 ` Jag Raman
2021-08-27 17:53 ` [PATCH RFC server v2 05/11] vfio-user: run vfio-user context Jagannathan Raman
2021-09-08 12:58 ` Stefan Hajnoczi
2021-09-08 13:37 ` John Levon
2021-09-08 15:02 ` Stefan Hajnoczi
2021-09-08 15:21 ` John Levon
2021-09-08 15:46 ` Stefan Hajnoczi
2021-08-27 17:53 ` [PATCH RFC server v2 06/11] vfio-user: handle PCI config space accesses Jagannathan Raman
2021-09-09 7:27 ` Stefan Hajnoczi
2021-09-10 16:22 ` Jag Raman
2021-09-13 12:13 ` Stefan Hajnoczi
2021-08-27 17:53 ` [PATCH RFC server v2 07/11] vfio-user: handle DMA mappings Jagannathan Raman
2021-09-09 7:29 ` Stefan Hajnoczi
2021-08-27 17:53 ` [PATCH RFC server v2 08/11] vfio-user: handle PCI BAR accesses Jagannathan Raman
2021-09-09 7:37 ` Stefan Hajnoczi
2021-09-10 16:36 ` Jag Raman
2021-08-27 17:53 ` [PATCH RFC server v2 09/11] vfio-user: handle device interrupts Jagannathan Raman
2021-09-09 7:40 ` Stefan Hajnoczi
2021-08-27 17:53 ` [PATCH RFC server v2 10/11] vfio-user: register handlers to facilitate migration Jagannathan Raman
2021-09-09 8:14 ` Stefan Hajnoczi
2021-08-27 17:53 ` [PATCH RFC server v2 11/11] vfio-user: acceptance test Jagannathan Raman
2021-09-08 10:08 ` [PATCH RFC server v2 00/11] vfio-user server in QEMU Stefan Hajnoczi
2021-09-08 12:06 ` Jag Raman
2021-09-09 8:17 ` Stefan Hajnoczi
2021-09-10 14:02 ` Jag Raman
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