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From: Thomas Gleixner <tglx@linutronix.de>
To: "Tian, Kevin" <kevin.tian@intel.com>, Jason Gunthorpe <jgg@nvidia.com>
Cc: "Jiang, Dave" <dave.jiang@intel.com>,
	Logan Gunthorpe <logang@deltatee.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Bjorn Helgaas <helgaas@kernel.org>, Marc Zygnier <maz@kernel.org>,
	Alex Williamson <alex.williamson@redhat.com>,
	"Dey, Megha" <megha.dey@intel.com>,
	"Raj, Ashok" <ashok.raj@intel.com>,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jon Mason <jdmason@kudzu.us>, Allen Hubbe <allenbh@gmail.com>,
	"linux-ntb@googlegroups.com" <linux-ntb@googlegroups.com>,
	"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
	Heiko Carstens <hca@linux.ibm.com>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	"x86@kernel.org" <x86@kernel.org>, Joerg Roedel <jroedel@suse.de>,
	"iommu@lists.linux-foundation.org"
	<iommu@lists.linux-foundation.org>
Subject: RE: [patch 21/32] NTB/msi: Convert to msi_on_each_desc()
Date: Sat, 11 Dec 2021 14:04:52 +0100	[thread overview]
Message-ID: <875yrvwavf.ffs@tglx> (raw)
In-Reply-To: <BN9PR11MB527625E8A9BB854F3C0D19AE8C729@BN9PR11MB5276.namprd11.prod.outlook.com>

Kevin,

On Sat, Dec 11 2021 at 07:44, Kevin Tian wrote:
>> From: Thomas Gleixner <tglx@linutronix.de>
>> On Fri, Dec 10 2021 at 08:39, Jason Gunthorpe wrote:
>> > It is clever, we don't have an vIOMMU that supplies vIR today, so by
>> > definition all guests are excluded and only bare metal works.
>> 
>> Dammit. Now you spilled the beans. :)
>
> Unfortunately we do have that today. Qemu supports IR for
> both AMD and Intel vIOMMU.

can you point me to the code?

All I can find is drivers/iommu/virtio-iommu.c but I can't find anything
vIR related there.

Thanks,

        tglx

  reply	other threads:[~2021-12-11 13:04 UTC|newest]

Thread overview: 141+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-27  1:23 [patch 00/32] genirq/msi, PCI/MSI: Spring cleaning - Part 2 Thomas Gleixner
2021-11-27  1:23 ` [patch 01/32] genirq/msi: Move descriptor list to struct msi_device_data Thomas Gleixner
2021-11-27 12:19   ` Greg Kroah-Hartman
2021-11-27  1:23 ` [patch 02/32] genirq/msi: Add mutex for MSI list protection Thomas Gleixner
2021-11-27  1:23 ` [patch 03/32] genirq/msi: Provide msi_domain_alloc/free_irqs_descs_locked() Thomas Gleixner
2021-11-27  1:23 ` [patch 04/32] genirq/msi: Provide a set of advanced MSI accessors and iterators Thomas Gleixner
2021-11-28  1:00   ` Jason Gunthorpe
2021-11-28 19:22     ` Thomas Gleixner
2021-11-29  9:26       ` Thomas Gleixner
2021-11-29 14:01         ` Jason Gunthorpe
2021-11-29 14:46           ` Thomas Gleixner
2021-11-27  1:23 ` [patch 05/32] genirq/msi: Provide msi_alloc_msi_desc() and a simple allocator Thomas Gleixner
2021-11-27  1:23 ` [patch 06/32] genirq/msi: Provide domain flags to allocate/free MSI descriptors automatically Thomas Gleixner
2021-11-27  1:23 ` [patch 07/32] genirq/msi: Count the allocated MSI descriptors Thomas Gleixner
2021-11-27 12:19   ` Greg Kroah-Hartman
2021-11-27 19:22     ` Thomas Gleixner
2021-11-27 19:45       ` Thomas Gleixner
2021-11-28 11:07         ` Greg Kroah-Hartman
2021-11-28 19:23           ` Thomas Gleixner
2021-11-27  1:23 ` [patch 08/32] PCI/MSI: Protect MSI operations Thomas Gleixner
2021-11-27  1:23 ` [patch 09/32] PCI/MSI: Use msi_add_msi_desc() Thomas Gleixner
2021-11-27  1:23 ` [patch 10/32] PCI/MSI: Let core code free MSI descriptors Thomas Gleixner
2021-11-27  1:23 ` [patch 11/32] PCI/MSI: Use msi_on_each_desc() Thomas Gleixner
2021-11-27  1:23 ` [patch 12/32] x86/pci/xen: Use msi_for_each_desc() Thomas Gleixner
2021-11-27  1:23 ` [patch 13/32] xen/pcifront: Rework MSI handling Thomas Gleixner
2021-11-27  1:23 ` [patch 14/32] s390/pci: Rework MSI descriptor walk Thomas Gleixner
2021-11-29 10:31   ` Niklas Schnelle
2021-11-29 13:04     ` Thomas Gleixner
2021-11-27  1:23 ` [patch 15/32] powerpc/4xx/hsta: Rework MSI handling Thomas Gleixner
2021-11-27  1:23 ` [patch 16/32] powerpc/cell/axon_msi: Convert to msi_on_each_desc() Thomas Gleixner
2021-11-27  1:23 ` [patch 17/32] powerpc/pasemi/msi: Convert to msi_on_each_dec() Thomas Gleixner
2021-11-27  1:23 ` [patch 18/32] powerpc/fsl_msi: Use msi_for_each_desc() Thomas Gleixner
2021-11-27  1:23 ` [patch 19/32] powerpc/mpic_u3msi: Use msi_for_each-desc() Thomas Gleixner
2021-11-27  1:24 ` [patch 20/32] PCI: hv: Rework MSI handling Thomas Gleixner
2021-11-27  1:24 ` [patch 21/32] NTB/msi: Convert to msi_on_each_desc() Thomas Gleixner
2021-11-29 18:21   ` Logan Gunthorpe
2021-11-29 20:51     ` Thomas Gleixner
2021-11-29 22:27       ` Logan Gunthorpe
2021-11-29 22:50         ` Dave Jiang
2021-11-29 23:31         ` Jason Gunthorpe
2021-11-29 23:52           ` Logan Gunthorpe
2021-11-30  0:01             ` Jason Gunthorpe
2021-11-30  0:29         ` Thomas Gleixner
2021-11-30 19:21           ` Logan Gunthorpe
2021-11-30 19:48             ` Thomas Gleixner
2021-11-30 20:14               ` Logan Gunthorpe
2021-11-30 20:28               ` Jason Gunthorpe
2021-11-30 21:23                 ` Thomas Gleixner
2021-12-01  0:17                   ` Jason Gunthorpe
2021-12-01 10:16                     ` Thomas Gleixner
2021-12-01 13:00                       ` Jason Gunthorpe
2021-12-01 17:35                         ` Thomas Gleixner
2021-12-01 18:14                           ` Jason Gunthorpe
2021-12-01 18:46                             ` Logan Gunthorpe
2021-12-01 20:21                             ` Thomas Gleixner
2021-12-02  0:01                               ` Thomas Gleixner
2021-12-02 13:55                                 ` Jason Gunthorpe
2021-12-02 14:23                                   ` Greg Kroah-Hartman
2021-12-02 14:45                                     ` Jason Gunthorpe
2021-12-02 19:25                                   ` Thomas Gleixner
2021-12-02 20:00                                     ` Jason Gunthorpe
2021-12-02 22:31                                       ` Thomas Gleixner
2021-12-03  0:37                                         ` Jason Gunthorpe
2021-12-03 15:07                                           ` Thomas Gleixner
2021-12-03 16:41                                             ` Jason Gunthorpe
2021-12-04 14:20                                               ` Thomas Gleixner
2021-12-05 14:16                                                 ` Thomas Gleixner
2021-12-06 14:43                                                   ` Jason Gunthorpe
2021-12-06 15:47                                                     ` Thomas Gleixner
2021-12-06 17:00                                                       ` Jason Gunthorpe
2021-12-06 20:28                                                         ` Thomas Gleixner
2021-12-06 21:06                                                           ` Jason Gunthorpe
2021-12-06 22:21                                                             ` Thomas Gleixner
2021-12-06 14:19                                                 ` Jason Gunthorpe
2021-12-06 15:06                                                   ` Thomas Gleixner
2021-12-09  6:26                                               ` Tian, Kevin
2021-12-09  9:03                                                 ` Thomas Gleixner
2021-12-09 12:17                                                   ` Tian, Kevin
2021-12-09 15:57                                                     ` Thomas Gleixner
2021-12-10  7:37                                                       ` Tian, Kevin
2021-12-09  5:41                                   ` Tian, Kevin
2021-12-09  5:47                                     ` Jason Wang
2021-12-01 16:28                       ` Dave Jiang
2021-12-01 18:41                         ` Thomas Gleixner
2021-12-01 18:47                           ` Dave Jiang
2021-12-01 20:25                             ` Thomas Gleixner
2021-12-01 21:21                               ` Dave Jiang
2021-12-01 21:44                                 ` Thomas Gleixner
2021-12-01 21:49                                   ` Dave Jiang
2021-12-01 22:03                                     ` Thomas Gleixner
2021-12-01 22:53                                       ` Dave Jiang
2021-12-01 23:57                                         ` Thomas Gleixner
2021-12-09  5:23                                   ` Tian, Kevin
2021-12-09  8:37                                     ` Thomas Gleixner
2021-12-09 12:31                                       ` Tian, Kevin
2021-12-09 16:21                                       ` Jason Gunthorpe
2021-12-09 20:32                                         ` Thomas Gleixner
2021-12-09 20:58                                           ` Jason Gunthorpe
2021-12-09 22:09                                             ` Thomas Gleixner
2021-12-10  0:26                                               ` Thomas Gleixner
2021-12-10  7:29                                                 ` Tian, Kevin
2021-12-10 12:13                                                   ` Thomas Gleixner
2021-12-11  8:06                                                     ` Tian, Kevin
2021-12-10 12:39                                                   ` Jason Gunthorpe
2021-12-10 19:00                                                     ` Thomas Gleixner
2021-12-11  7:44                                                       ` Tian, Kevin
2021-12-11 13:04                                                         ` Thomas Gleixner [this message]
2021-12-12  1:56                                                           ` Tian, Kevin
2021-12-12 20:55                                                             ` Thomas Gleixner
2021-12-12 23:37                                                               ` Jason Gunthorpe
2021-12-13  7:50                                                                 ` Tian, Kevin
2021-12-11  7:52                                                     ` Tian, Kevin
2021-12-12  0:12                                                       ` Thomas Gleixner
2021-12-12  2:14                                                         ` Tian, Kevin
2021-12-12 20:50                                                           ` Thomas Gleixner
2021-12-12 23:42                                                         ` Jason Gunthorpe
2021-12-10  7:36                                             ` Tian, Kevin
2021-12-10 12:30                                               ` Jason Gunthorpe
2021-12-12  6:44                                               ` Mika Penttilä
2021-12-12 23:27                                                 ` Jason Gunthorpe
2021-12-01 14:52                   ` Thomas Gleixner
2021-12-01 15:11                     ` Jason Gunthorpe
2021-12-01 18:37                       ` Thomas Gleixner
2021-12-01 18:47                         ` Jason Gunthorpe
2021-12-01 20:26                           ` Thomas Gleixner
2021-11-27  1:24 ` [patch 22/32] soc: ti: ti_sci_inta_msi: Rework MSI descriptor allocation Thomas Gleixner
2021-11-27  1:24 ` [patch 23/32] soc: ti: ti_sci_inta_msi: Remove ti_sci_inta_msi_domain_free_irqs() Thomas Gleixner
2021-11-27  1:24 ` [patch 24/32] bus: fsl-mc-msi: Simplify MSI descriptor handling Thomas Gleixner
2021-11-27  1:24 ` [patch 25/32] platform-msi: Let core code handle MSI descriptors Thomas Gleixner
2021-11-27  1:24 ` [patch 26/32] platform-msi: Simplify platform device MSI code Thomas Gleixner
2021-11-27  1:24 ` [patch 27/32] genirq/msi: Make interrupt allocation less convoluted Thomas Gleixner
2021-11-27  1:24 ` [patch 28/32] genirq/msi: Convert to new functions Thomas Gleixner
2021-11-27  1:24 ` [patch 29/32] genirq/msi: Mop up old interfaces Thomas Gleixner
2021-11-27  1:24 ` [patch 30/32] genirq/msi: Add abuse prevention comment to msi header Thomas Gleixner
2021-11-27  1:24 ` [patch 31/32] genirq/msi: Simplify sysfs handling Thomas Gleixner
2021-11-27 12:32   ` Greg Kroah-Hartman
2021-11-27 19:31     ` Thomas Gleixner
2021-11-28 11:07       ` Greg Kroah-Hartman
2021-11-28 19:33         ` Thomas Gleixner
2021-11-27  1:24 ` [patch 32/32] genirq/msi: Convert storage to xarray Thomas Gleixner
2021-11-27 12:33   ` Greg Kroah-Hartman

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