From: Jason Gunthorpe <jgg@nvidia.com>
To: "Tian, Kevin" <kevin.tian@intel.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>,
Alex Williamson <alex.williamson@redhat.com>,
Lu Baolu <baolu.lu@linux.intel.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Cornelia Huck <cohuck@redhat.com>,
David Woodhouse <dwmw2@infradead.org>,
Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
"iommu@lists.linux.dev" <iommu@lists.linux.dev>,
Joerg Roedel <joro@8bytes.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
Marc Zyngier <maz@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
Sven Schnelle <svens@linux.ibm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Will Deacon <will@kernel.org>,
Bharat Bhushan <bharat.bhushan@nxp.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Eric Auger <eric.auger@redhat.com>,
Eric Farman <farman@linux.ibm.com>,
Marc Zyngier <marc.zyngier@arm.com>,
Matthew Rosato <mjrosato@linux.ibm.com>,
Tomasz Nowicki <tomasz.nowicki@caviumnetworks.com>,
Will Deacon <will.deacon@arm.com>
Subject: Re: [PATCH iommufd v2 8/9] irq/s390: Add arch_is_isolated_msi() for s390
Date: Wed, 4 Jan 2023 20:13:20 -0400 [thread overview]
Message-ID: <Y7YWIFxyl8gD7J47@nvidia.com> (raw)
In-Reply-To: <BN9PR11MB527666D2192E2C25FF8A36AA8CE19@BN9PR11MB5276.namprd11.prod.outlook.com>
On Thu, Dec 15, 2022 at 07:39:25AM +0000, Tian, Kevin wrote:
> > From: Jason Gunthorpe <jgg@nvidia.com>
> > Sent: Tuesday, December 13, 2022 2:46 AM
> > @@ -660,7 +664,7 @@ static inline bool msi_device_has_isolated_msi(struct
> > device *dev)
> > * is inherently isolated by our definition. As nobody seems to needs
> > * this be conservative and return false anyhow.
>
> Also update the comment given the returned value is arch specific
> now.
/*
* Arguably if the platform does not enable MSI support then it has
* "isolated MSI", as an interrupt controller that cannot receive MSIs
* is inherently isolated by our definition. The default definition for
* arch_is_isolated_msi() is conservative and returns false anyhow.
*/
Jason
next prev parent reply other threads:[~2023-01-05 0:14 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-12 18:45 [PATCH iommufd v2 0/9] Remove IOMMU_CAP_INTR_REMAP Jason Gunthorpe
2022-12-12 18:45 ` [PATCH iommufd v2 1/9] irq: Add msi_device_has_isolated_msi() Jason Gunthorpe
2022-12-12 18:45 ` [PATCH iommufd v2 2/9] iommu: Add iommu_group_has_isolated_msi() Jason Gunthorpe
2022-12-13 14:37 ` Jason Gunthorpe
2022-12-12 18:45 ` [PATCH iommufd v2 3/9] vfio/type1: Convert to iommu_group_has_isolated_msi() Jason Gunthorpe
2022-12-12 18:45 ` [PATCH iommufd v2 4/9] iommufd: Convert to msi_device_has_isolated_msi() Jason Gunthorpe
2022-12-12 18:45 ` [PATCH iommufd v2 5/9] irq: Remove unused irq_domain_check_msi_remap() code Jason Gunthorpe
2022-12-12 18:46 ` [PATCH iommufd v2 6/9] irq: Rename IRQ_DOMAIN_MSI_REMAP to IRQ_DOMAIN_ISOLATED_MSI Jason Gunthorpe
2022-12-12 18:46 ` [PATCH iommufd v2 7/9] iommu/x86: Replace IOMMU_CAP_INTR_REMAP with IRQ_DOMAIN_FLAG_ISOLATED_MSI Jason Gunthorpe
2022-12-12 18:46 ` [PATCH iommufd v2 8/9] irq/s390: Add arch_is_isolated_msi() for s390 Jason Gunthorpe
2022-12-15 7:39 ` Tian, Kevin
2023-01-05 0:13 ` Jason Gunthorpe [this message]
2022-12-19 16:16 ` Matthew Rosato
2022-12-12 18:46 ` [PATCH iommufd v2 9/9] iommu: Remove IOMMU_CAP_INTR_REMAP Jason Gunthorpe
2022-12-15 7:39 ` [PATCH iommufd v2 0/9] " Tian, Kevin
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