From: Thomas Huth <thuth@redhat.com>
To: Matthew Rosato <mjrosato@linux.ibm.com>, linux-s390@vger.kernel.org
Cc: alex.williamson@redhat.com, cohuck@redhat.com,
schnelle@linux.ibm.com, farman@linux.ibm.com,
pmorel@linux.ibm.com, borntraeger@linux.ibm.com,
hca@linux.ibm.com, gor@linux.ibm.com,
gerald.schaefer@linux.ibm.com, agordeev@linux.ibm.com,
frankja@linux.ibm.com, david@redhat.com, imbrenda@linux.ibm.com,
vneethv@linux.ibm.com, oberpar@linux.ibm.com,
freude@linux.ibm.com, pasic@linux.ibm.com, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 06/32] s390/airq: allow for airq structure that uses an input vector
Date: Wed, 8 Dec 2021 11:04:49 +0100 [thread overview]
Message-ID: <804a914d-3e1d-1439-f8b5-3b514cda0f6e@redhat.com> (raw)
In-Reply-To: <20211207205743.150299-7-mjrosato@linux.ibm.com>
On 07/12/2021 21.57, Matthew Rosato wrote:
> When doing device passthrough where interrupts are being forwarded
> from host to guest, we wish to use a pinned section of guest memory
> as the vector (the same memory used by the guest as the vector).
>
> Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
> ---
[...]
> diff --git a/arch/s390/pci/pci_irq.c b/arch/s390/pci/pci_irq.c
> index 880bcd73f11a..dfd4f3276a6d 100644
> --- a/arch/s390/pci/pci_irq.c
> +++ b/arch/s390/pci/pci_irq.c
[...]
> @@ -443,7 +443,7 @@ static int __init zpci_directed_irq_init(void)
> zpci_ibv[cpu] = airq_iv_create(cache_line_size() * BITS_PER_BYTE,
> AIRQ_IV_DATA |
> AIRQ_IV_CACHELINE |
> - (!cpu ? AIRQ_IV_ALLOC : 0));
> + (!cpu ? AIRQ_IV_ALLOC : 0), 0);
Nit: Indentation changed
> diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c
> index 52c376d15978..ff84f45587be 100644
> --- a/drivers/s390/virtio/virtio_ccw.c
> +++ b/drivers/s390/virtio/virtio_ccw.c
> @@ -241,7 +241,7 @@ static struct airq_info *new_airq_info(int index)
> return NULL;
> rwlock_init(&info->lock);
> info->aiv = airq_iv_create(VIRTIO_IV_BITS, AIRQ_IV_ALLOC | AIRQ_IV_PTR
> - | AIRQ_IV_CACHELINE);
> + | AIRQ_IV_CACHELINE, 0);
dito
> if (!info->aiv) {
> kfree(info);
> return NULL;
>
Thomas
next prev parent reply other threads:[~2021-12-08 10:04 UTC|newest]
Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-07 20:57 [PATCH 00/32] KVM: s390: enable zPCI for interpretive execution Matthew Rosato
2021-12-07 20:57 ` [PATCH 01/32] s390/sclp: detect the zPCI interpretation facility Matthew Rosato
2021-12-08 11:12 ` Christian Borntraeger
2021-12-08 14:33 ` Eric Farman
2021-12-08 13:06 ` Claudio Imbrenda
2021-12-07 20:57 ` [PATCH 02/32] s390/sclp: detect the AISII facility Matthew Rosato
2021-12-08 11:13 ` Christian Borntraeger
2021-12-08 13:07 ` Claudio Imbrenda
2021-12-07 20:57 ` [PATCH 03/32] s390/sclp: detect the AENI facility Matthew Rosato
2021-12-08 11:17 ` Christian Borntraeger
2021-12-08 13:08 ` Claudio Imbrenda
2021-12-07 20:57 ` [PATCH 04/32] s390/sclp: detect the AISI facility Matthew Rosato
2021-12-08 11:18 ` Christian Borntraeger
2021-12-08 13:09 ` Claudio Imbrenda
2021-12-07 20:57 ` [PATCH 05/32] s390/airq: pass more TPI info to airq handlers Matthew Rosato
2021-12-08 11:25 ` Christian Borntraeger
2021-12-08 13:14 ` Claudio Imbrenda
2021-12-13 14:35 ` Pierre Morel
2021-12-07 20:57 ` [PATCH 06/32] s390/airq: allow for airq structure that uses an input vector Matthew Rosato
2021-12-08 10:04 ` Thomas Huth [this message]
2021-12-08 12:59 ` Christian Borntraeger
2021-12-07 20:57 ` [PATCH 07/32] s390/pci: externalize the SIC operation controls and routine Matthew Rosato
2021-12-08 13:09 ` Christian Borntraeger
2021-12-08 13:53 ` Niklas Schnelle
2021-12-08 15:33 ` Matthew Rosato
2021-12-08 15:59 ` Niklas Schnelle
2021-12-08 16:20 ` Matthew Rosato
2021-12-08 16:41 ` Niklas Schnelle
2021-12-08 18:18 ` Niklas Schnelle
2021-12-07 20:57 ` [PATCH 08/32] s390/pci: stash associated GISA designation Matthew Rosato
2021-12-09 15:07 ` Christian Borntraeger
2021-12-10 19:01 ` Eric Farman
2021-12-13 14:59 ` Pierre Morel
2021-12-07 20:57 ` [PATCH 09/32] s390/pci: export some routines related to RPCIT processing Matthew Rosato
2021-12-09 15:20 ` Christian Borntraeger
2021-12-07 20:57 ` [PATCH 10/32] s390/pci: stash dtsm and maxstbl Matthew Rosato
2021-12-08 16:18 ` Niklas Schnelle
2021-12-09 9:13 ` Pierre Morel
2021-12-09 15:25 ` Christian Borntraeger
2021-12-07 20:57 ` [PATCH 11/32] s390/pci: add helper function to find device by handle Matthew Rosato
2021-12-09 15:28 ` Christian Borntraeger
2021-12-10 19:04 ` Eric Farman
2021-12-07 20:57 ` [PATCH 12/32] s390/pci: get SHM information from list pci Matthew Rosato
2021-12-08 12:21 ` Niklas Schnelle
2021-12-09 18:25 ` Matthew Rosato
2021-12-09 15:47 ` Christian Borntraeger
2021-12-10 8:45 ` Niklas Schnelle
2021-12-07 20:57 ` [PATCH 13/32] KVM: s390: pci: add basic kvm_zdev structure Matthew Rosato
2021-12-09 15:54 ` Christian Borntraeger
2021-12-10 19:04 ` Eric Farman
2021-12-13 15:19 ` Pierre Morel
2021-12-14 9:15 ` Pierre Morel
2021-12-17 20:26 ` Matthew Rosato
2021-12-20 17:26 ` Pierre Morel
2021-12-07 20:57 ` [PATCH 14/32] KVM: s390: pci: do initial setup for AEN interpretation Matthew Rosato
2021-12-09 19:54 ` Christian Borntraeger
2021-12-09 20:20 ` Matthew Rosato
2021-12-09 20:23 ` Christian Borntraeger
2021-12-10 8:36 ` Niklas Schnelle
2021-12-10 9:54 ` Pierre Morel
2021-12-10 10:55 ` Pierre Morel
2021-12-07 20:57 ` [PATCH 15/32] KVM: s390: pci: enable host forwarding of Adapter Event Notifications Matthew Rosato
2021-12-10 21:51 ` Eric Farman
2021-12-17 16:56 ` Christian Borntraeger
2021-12-17 17:42 ` Matthew Rosato
2021-12-07 20:57 ` [PATCH 16/32] KVM: s390: expose the guest zPCI interpretation facility Matthew Rosato
2021-12-17 15:05 ` Christian Borntraeger
2021-12-17 15:19 ` Matthew Rosato
2021-12-17 16:58 ` Christian Borntraeger
2021-12-17 17:13 ` Matthew Rosato
2021-12-07 20:57 ` [PATCH 17/32] KVM: s390: expose the guest Adapter Interruption Source ID facility Matthew Rosato
2021-12-17 15:06 ` Christian Borntraeger
2021-12-07 20:57 ` [PATCH 18/32] KVM: s390: expose guest Adapter Event Notification Interpretation facility Matthew Rosato
2021-12-07 20:57 ` [PATCH 19/32] KVM: s390: mechanism to enable guest zPCI Interpretation Matthew Rosato
2021-12-10 13:27 ` Christian Borntraeger
2021-12-10 14:21 ` Matthew Rosato
2021-12-07 20:57 ` [PATCH 20/32] KVM: s390: pci: provide routines for enabling/disabling interpretation Matthew Rosato
2021-12-08 9:44 ` Niklas Schnelle
2021-12-08 15:04 ` Matthew Rosato
2021-12-14 9:16 ` Pierre Morel
2021-12-07 20:57 ` [PATCH 21/32] KVM: s390: pci: provide routines for enabling/disabling interrupt forwarding Matthew Rosato
2021-12-14 9:26 ` Pierre Morel
2021-12-07 20:57 ` [PATCH 22/32] KVM: s390: pci: provide routines for enabling/disabling IOAT assist Matthew Rosato
2021-12-14 17:46 ` Pierre Morel
2021-12-14 18:13 ` Matthew Rosato
2021-12-07 20:57 ` [PATCH 23/32] KVM: s390: pci: handle refresh of PCI translations Matthew Rosato
2021-12-08 10:30 ` Niklas Schnelle
2021-12-08 18:04 ` Matthew Rosato
2021-12-14 16:59 ` Pierre Morel
2021-12-14 17:54 ` Matthew Rosato
2021-12-16 14:39 ` Niklas Schnelle
2021-12-16 14:51 ` Matthew Rosato
2021-12-17 9:41 ` Niklas Schnelle
2021-12-07 20:57 ` [PATCH 24/32] KVM: s390: intercept the rpcit instruction Matthew Rosato
2021-12-14 17:04 ` Pierre Morel
2021-12-14 18:00 ` Matthew Rosato
2021-12-07 20:57 ` [PATCH 25/32] vfio/pci: re-introduce CONFIG_VFIO_PCI_ZDEV Matthew Rosato
2021-12-17 16:49 ` Christian Borntraeger
2021-12-17 17:54 ` Matthew Rosato
2021-12-07 20:57 ` [PATCH 26/32] vfio-pci/zdev: wire up group notifier Matthew Rosato
2021-12-21 18:47 ` Alex Williamson
2021-12-07 20:57 ` [PATCH 27/32] vfio-pci/zdev: wire up zPCI interpretive execution support Matthew Rosato
2021-12-14 16:30 ` Pierre Morel
2021-12-21 18:48 ` Alex Williamson
2021-12-07 20:57 ` [PATCH 28/32] vfio-pci/zdev: wire up zPCI adapter interrupt forwarding support Matthew Rosato
2021-12-14 9:48 ` Pierre Morel
2021-12-07 20:57 ` [PATCH 29/32] vfio-pci/zdev: wire up zPCI IOAT assist support Matthew Rosato
2021-12-14 9:46 ` Pierre Morel
2021-12-07 20:57 ` [PATCH 30/32] vfio-pci/zdev: add DTSM to clp group capability Matthew Rosato
2021-12-14 9:58 ` Pierre Morel
2021-12-14 14:59 ` Matthew Rosato
2021-12-07 20:57 ` [PATCH 31/32] KVM: s390: introduce CPU feature for zPCI Interpretation Matthew Rosato
2021-12-07 20:57 ` [PATCH 32/32] MAINTAINERS: additional files related kvm s390 pci passthrough Matthew Rosato
2021-12-17 14:55 ` Christian Borntraeger
2021-12-21 19:11 ` Alex Williamson
2021-12-07 21:16 ` [PATCH 00/32] KVM: s390: enable zPCI for interpretive execution Matthew Rosato
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