From: Markus Armbruster <armbru@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Cornelia Huck" <cohuck@redhat.com>,
"Peter Maydell" <peter.maydell@linaro.org>,
"Thomas Huth" <thuth@redhat.com>,
"open list:RISC-V" <qemu-riscv@nongnu.org>,
"Eduardo Habkost" <ehabkost@redhat.com>,
"Sagar Karandikar" <sagark@eecs.berkeley.edu>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Helge Deller" <deller@gmx.de>,
"Palmer Dabbelt" <palmer@sifive.com>,
"Mark Cave-Ayland" <mark.cave-ayland@ilande.co.uk>,
"Collin Walling" <walling@linux.ibm.com>,
"QEMU Developers" <qemu-devel@nongnu.org>,
"open list:S390" <qemu-s390x@nongnu.org>,
qemu-arm <qemu-arm@nongnu.org>,
"Alistair Francis" <Alistair.Francis@wdc.com>,
"Gerd Hoffmann" <kraxel@redhat.com>,
"Artyom Tarasenko" <atar4qemu@gmail.com>,
qemu-ppc <qemu-ppc@nongnu.org>,
"David Gibson" <david@gibson.dropbear.id.au>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>,
"Aurelien Jarno" <aurelien@aurel32.net>,
"Richard Henderson" <rth@twiddle.net>
Subject: Re: [Qemu-riscv] [Qemu-devel] [qemu-s390x] [RFC PATCH 1/3] hw/Kconfig: PCI bus implies PCI_DEVICES
Date: Tue, 16 Jul 2019 15:06:58 +0200 [thread overview]
Message-ID: <87h87m2knh.fsf@dusky.pond.sub.org> (raw)
In-Reply-To: <799aa0f5-8850-5caa-5103-e1cf3cdb018f@redhat.com> (Paolo Bonzini's message of "Mon, 15 Jul 2019 20:22:41 +0200")
Paolo Bonzini <pbonzini@redhat.com> writes:
> On 15/07/19 18:12, Cornelia Huck wrote:
>>> Is it INTx vs. MSI vs. MSI-X?
>>
>> I think for s390x we need (INTx || MSI) vs MSI-X...
>
> I think MSI vs MSI-X is just how it's configured, not the actual
> behavior, so it should be irrelevant.
My best guesses from confusing information, please correct
misunderstandings:
1. PCI devices need to support MSI or MSI-X to work with s390x.
2. We want a way to Kconfig the PCI devices that work, i.e. only the
ones that support MSI or MSI-X.
I don't like calling devices without any MSI capability "classic" or
"conventional devices". I'd rather call them "MSI-capable" or
"MSI/MSI-X devices".
Since PCI-E devices must implement MSI or MSI-X, we could perhaps
configure just the PCI-E devices for s390x. No need to invent a new
name then. Do we even have device models that can do MSI but not E?
WARNING: multiple messages have this Message-ID (diff)
From: Markus Armbruster <armbru@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Collin Walling" <walling@linux.ibm.com>,
"Sagar Karandikar" <sagark@eecs.berkeley.edu>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Palmer Dabbelt" <palmer@sifive.com>,
"Mark Cave-Ayland" <mark.cave-ayland@ilande.co.uk>,
"QEMU Developers" <qemu-devel@nongnu.org>,
"Alistair Francis" <Alistair.Francis@wdc.com>,
"Gerd Hoffmann" <kraxel@redhat.com>,
"Helge Deller" <deller@gmx.de>,
"David Gibson" <david@gibson.dropbear.id.au>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>,
"Artyom Tarasenko" <atar4qemu@gmail.com>,
"Thomas Huth" <thuth@redhat.com>,
"Eduardo Habkost" <ehabkost@redhat.com>,
"open list:S390" <qemu-s390x@nongnu.org>,
qemu-arm <qemu-arm@nongnu.org>,
"Richard Henderson" <rth@twiddle.net>,
"open list:RISC-V" <qemu-riscv@nongnu.org>,
"Cornelia Huck" <cohuck@redhat.com>,
qemu-ppc <qemu-ppc@nongnu.org>,
"Aurelien Jarno" <aurelien@aurel32.net>
Subject: Re: [Qemu-arm] [Qemu-devel] [qemu-s390x] [RFC PATCH 1/3] hw/Kconfig: PCI bus implies PCI_DEVICES
Date: Tue, 16 Jul 2019 15:06:58 +0200 [thread overview]
Message-ID: <87h87m2knh.fsf@dusky.pond.sub.org> (raw)
In-Reply-To: <799aa0f5-8850-5caa-5103-e1cf3cdb018f@redhat.com> (Paolo Bonzini's message of "Mon, 15 Jul 2019 20:22:41 +0200")
Paolo Bonzini <pbonzini@redhat.com> writes:
> On 15/07/19 18:12, Cornelia Huck wrote:
>>> Is it INTx vs. MSI vs. MSI-X?
>>
>> I think for s390x we need (INTx || MSI) vs MSI-X...
>
> I think MSI vs MSI-X is just how it's configured, not the actual
> behavior, so it should be irrelevant.
My best guesses from confusing information, please correct
misunderstandings:
1. PCI devices need to support MSI or MSI-X to work with s390x.
2. We want a way to Kconfig the PCI devices that work, i.e. only the
ones that support MSI or MSI-X.
I don't like calling devices without any MSI capability "classic" or
"conventional devices". I'd rather call them "MSI-capable" or
"MSI/MSI-X devices".
Since PCI-E devices must implement MSI or MSI-X, we could perhaps
configure just the PCI-E devices for s390x. No need to invent a new
name then. Do we even have device models that can do MSI but not E?
WARNING: multiple messages have this Message-ID (diff)
From: Markus Armbruster <armbru@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Collin Walling" <walling@linux.ibm.com>,
"Sagar Karandikar" <sagark@eecs.berkeley.edu>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Palmer Dabbelt" <palmer@sifive.com>,
"Mark Cave-Ayland" <mark.cave-ayland@ilande.co.uk>,
"QEMU Developers" <qemu-devel@nongnu.org>,
"Alistair Francis" <Alistair.Francis@wdc.com>,
"Gerd Hoffmann" <kraxel@redhat.com>,
"Helge Deller" <deller@gmx.de>,
"David Gibson" <david@gibson.dropbear.id.au>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>,
"Artyom Tarasenko" <atar4qemu@gmail.com>,
"Thomas Huth" <thuth@redhat.com>,
"Eduardo Habkost" <ehabkost@redhat.com>,
"open list:S390" <qemu-s390x@nongnu.org>,
qemu-arm <qemu-arm@nongnu.org>,
"Richard Henderson" <rth@twiddle.net>,
"open list:RISC-V" <qemu-riscv@nongnu.org>,
"Cornelia Huck" <cohuck@redhat.com>,
qemu-ppc <qemu-ppc@nongnu.org>,
"Aurelien Jarno" <aurelien@aurel32.net>
Subject: Re: [Qemu-devel] [qemu-s390x] [RFC PATCH 1/3] hw/Kconfig: PCI bus implies PCI_DEVICES
Date: Tue, 16 Jul 2019 15:06:58 +0200 [thread overview]
Message-ID: <87h87m2knh.fsf@dusky.pond.sub.org> (raw)
In-Reply-To: <799aa0f5-8850-5caa-5103-e1cf3cdb018f@redhat.com> (Paolo Bonzini's message of "Mon, 15 Jul 2019 20:22:41 +0200")
Paolo Bonzini <pbonzini@redhat.com> writes:
> On 15/07/19 18:12, Cornelia Huck wrote:
>>> Is it INTx vs. MSI vs. MSI-X?
>>
>> I think for s390x we need (INTx || MSI) vs MSI-X...
>
> I think MSI vs MSI-X is just how it's configured, not the actual
> behavior, so it should be irrelevant.
My best guesses from confusing information, please correct
misunderstandings:
1. PCI devices need to support MSI or MSI-X to work with s390x.
2. We want a way to Kconfig the PCI devices that work, i.e. only the
ones that support MSI or MSI-X.
I don't like calling devices without any MSI capability "classic" or
"conventional devices". I'd rather call them "MSI-capable" or
"MSI/MSI-X devices".
Since PCI-E devices must implement MSI or MSI-X, we could perhaps
configure just the PCI-E devices for s390x. No need to invent a new
name then. Do we even have device models that can do MSI but not E?
next prev parent reply other threads:[~2019-07-16 13:07 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-15 9:55 [Qemu-riscv] [PATCH 0/3] hw/Kconfig: PCI & USB fixes Philippe Mathieu-Daudé
2019-07-15 9:55 ` [Qemu-devel] " Philippe Mathieu-Daudé
2019-07-15 9:55 ` [Qemu-arm] " Philippe Mathieu-Daudé
2019-07-15 9:55 ` [Qemu-riscv] [RFC PATCH 1/3] hw/Kconfig: PCI bus implies PCI_DEVICES Philippe Mathieu-Daudé
2019-07-15 9:55 ` [Qemu-devel] " Philippe Mathieu-Daudé
2019-07-15 9:55 ` [Qemu-arm] " Philippe Mathieu-Daudé
2019-07-15 10:15 ` [Qemu-riscv] " Thomas Huth
2019-07-15 10:15 ` [Qemu-devel] " Thomas Huth
2019-07-15 10:15 ` [Qemu-arm] " Thomas Huth
2019-07-15 10:19 ` [Qemu-riscv] " Peter Maydell
2019-07-15 10:19 ` [Qemu-devel] " Peter Maydell
2019-07-15 10:19 ` [Qemu-arm] " Peter Maydell
2019-07-15 10:48 ` [Qemu-riscv] " Thomas Huth
2019-07-15 10:48 ` [Qemu-devel] " Thomas Huth
2019-07-15 10:48 ` [Qemu-arm] " Thomas Huth
2019-07-15 10:56 ` [Qemu-riscv] [qemu-s390x] " Cornelia Huck
2019-07-15 10:56 ` [Qemu-devel] " Cornelia Huck
2019-07-15 10:56 ` [Qemu-arm] " Cornelia Huck
2019-07-15 11:04 ` [Qemu-riscv] " Philippe Mathieu-Daudé
2019-07-15 11:04 ` [Qemu-devel] " Philippe Mathieu-Daudé
2019-07-15 11:04 ` [Qemu-arm] " Philippe Mathieu-Daudé
2019-07-15 11:09 ` [Qemu-riscv] " Cornelia Huck
2019-07-15 11:09 ` [Qemu-devel] " Cornelia Huck
2019-07-15 11:09 ` [Qemu-arm] " Cornelia Huck
2019-07-15 13:19 ` [Qemu-riscv] " Thomas Huth
2019-07-15 13:19 ` [Qemu-devel] " Thomas Huth
2019-07-15 13:19 ` [Qemu-arm] " Thomas Huth
2019-07-15 13:38 ` [Qemu-riscv] " Philippe Mathieu-Daudé
2019-07-15 13:38 ` [Qemu-devel] " Philippe Mathieu-Daudé
2019-07-15 13:38 ` [Qemu-arm] " Philippe Mathieu-Daudé
2019-07-15 13:49 ` [Qemu-riscv] " Thomas Huth
2019-07-15 13:49 ` [Qemu-devel] " Thomas Huth
2019-07-15 13:49 ` [Qemu-arm] " Thomas Huth
2019-07-15 16:08 ` [Qemu-riscv] [Qemu-devel] " Markus Armbruster
2019-07-15 16:08 ` Markus Armbruster
2019-07-15 16:08 ` [Qemu-arm] " Markus Armbruster
2019-07-15 16:12 ` [Qemu-riscv] " Cornelia Huck
2019-07-15 16:12 ` Cornelia Huck
2019-07-15 16:12 ` [Qemu-arm] " Cornelia Huck
2019-07-15 18:22 ` [Qemu-riscv] " Paolo Bonzini
2019-07-15 18:22 ` Paolo Bonzini
2019-07-15 18:22 ` [Qemu-arm] " Paolo Bonzini
2019-07-16 13:06 ` Markus Armbruster [this message]
2019-07-16 13:06 ` Markus Armbruster
2019-07-16 13:06 ` [Qemu-arm] " Markus Armbruster
2019-07-16 15:04 ` [Qemu-riscv] " Thomas Huth
2019-07-16 15:04 ` Thomas Huth
2019-07-16 15:04 ` [Qemu-arm] " Thomas Huth
2019-07-17 12:59 ` [Qemu-riscv] " Collin Walling
2019-07-17 12:59 ` Collin Walling
2019-07-17 13:52 ` [Qemu-riscv] " Paolo Bonzini
2019-07-17 13:52 ` Paolo Bonzini
2019-07-17 13:52 ` [Qemu-arm] " Paolo Bonzini
2019-07-17 14:54 ` [Qemu-riscv] " Collin Walling
2019-07-17 14:54 ` Collin Walling
2019-07-17 14:54 ` [Qemu-arm] " Collin Walling
2019-07-17 15:04 ` [Qemu-riscv] " Paolo Bonzini
2019-07-17 15:04 ` Paolo Bonzini
2019-07-17 15:04 ` [Qemu-arm] " Paolo Bonzini
2019-07-18 15:33 ` [Qemu-riscv] " Cornelia Huck
2019-07-18 15:33 ` Cornelia Huck
2019-07-18 15:33 ` [Qemu-arm] " Cornelia Huck
2019-07-22 13:40 ` [Qemu-riscv] " Markus Armbruster
2019-07-22 13:40 ` Markus Armbruster
2019-07-22 13:40 ` [Qemu-arm] " Markus Armbruster
2019-07-15 9:55 ` [Qemu-riscv] [PATCH-for-4.2 2/3] hw/usb/Kconfig: Add CONFIG_USB_EHCI_PCI Philippe Mathieu-Daudé
2019-07-15 9:55 ` [Qemu-devel] " Philippe Mathieu-Daudé
2019-07-15 9:55 ` [Qemu-arm] " Philippe Mathieu-Daudé
2019-07-15 10:54 ` [Qemu-riscv] [Qemu-ppc] " BALATON Zoltan
2019-07-15 10:54 ` [Qemu-devel] " BALATON Zoltan
2019-07-15 10:54 ` [Qemu-arm] " BALATON Zoltan
2019-07-15 11:03 ` [Qemu-riscv] " Thomas Huth
2019-07-15 11:03 ` [Qemu-devel] " Thomas Huth
2019-07-15 11:03 ` [Qemu-arm] " Thomas Huth
2019-07-15 11:10 ` [Qemu-riscv] " BALATON Zoltan
2019-07-15 11:10 ` [Qemu-devel] " BALATON Zoltan
2019-07-15 11:19 ` [Qemu-riscv] " Thomas Huth
2019-07-15 11:19 ` [Qemu-devel] " Thomas Huth
2019-07-15 11:19 ` [Qemu-arm] " Thomas Huth
2019-07-15 11:20 ` [Qemu-riscv] " Paolo Bonzini
2019-07-15 11:20 ` [Qemu-devel] " Paolo Bonzini
2019-07-15 11:20 ` [Qemu-arm] " Paolo Bonzini
2019-07-15 11:01 ` [Qemu-riscv] " Thomas Huth
2019-07-15 11:01 ` [Qemu-devel] " Thomas Huth
2019-07-15 11:01 ` [Qemu-arm] " Thomas Huth
2019-07-15 9:55 ` [Qemu-riscv] [PATCH-for-4.1? 3/3] hw/usb/Kconfig: USB_XHCI_NEC requires USB_XHCI Philippe Mathieu-Daudé
2019-07-15 9:55 ` [Qemu-devel] " Philippe Mathieu-Daudé
2019-07-15 9:55 ` [Qemu-arm] " Philippe Mathieu-Daudé
2019-07-15 10:50 ` [Qemu-trivial] " Thomas Huth
2019-07-15 10:50 ` [Qemu-devel] " Thomas Huth
2019-07-15 10:50 ` [Qemu-arm] " Thomas Huth
2019-07-15 10:50 ` [Qemu-riscv] " Thomas Huth
2019-07-15 11:21 ` [Qemu-riscv] [PATCH 0/3] hw/Kconfig: PCI & USB fixes Paolo Bonzini
2019-07-15 11:21 ` [Qemu-devel] " Paolo Bonzini
2019-07-15 11:21 ` [Qemu-arm] " Paolo Bonzini
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