From: Nicolin Chen <nicolinc@nvidia.com>
To: "Duan, Zhenzhong" <zhenzhong.duan@intel.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"alex.williamson@redhat.com" <alex.williamson@redhat.com>,
"clg@redhat.com" <clg@redhat.com>,
"eric.auger@redhat.com" <eric.auger@redhat.com>,
"mst@redhat.com" <mst@redhat.com>,
"jasowang@redhat.com" <jasowang@redhat.com>,
"peterx@redhat.com" <peterx@redhat.com>,
"ddutile@redhat.com" <ddutile@redhat.com>,
"jgg@nvidia.com" <jgg@nvidia.com>,
"skolothumtho@nvidia.com" <skolothumtho@nvidia.com>,
"joao.m.martins@oracle.com" <joao.m.martins@oracle.com>,
"clement.mathieu--drif@eviden.com"
<clement.mathieu--drif@eviden.com>,
"Tian, Kevin" <kevin.tian@intel.com>,
"Liu, Yi L" <yi.l.liu@intel.com>,
"Peng, Chao P" <chao.p.peng@intel.com>
Subject: Re: [PATCH v6 18/22] iommufd: Introduce a helper function to extract vendor capabilities
Date: Wed, 24 Sep 2025 01:27:54 -0700 [thread overview]
Message-ID: <aNOriuyx9Fhw7aMI@Asurada-Nvidia> (raw)
In-Reply-To: <IA3PR11MB9136B5015A5396E5FC782B8C921CA@IA3PR11MB9136.namprd11.prod.outlook.com>
On Wed, Sep 24, 2025 at 08:05:36AM +0000, Duan, Zhenzhong wrote:
> >uint64_t host_iommu_extract_quirks(enum iommu_hw_info_type,
> >VendorCaps *caps)
> >{
> > uint64_t quirks = 0;
> >
> >#if defined(CONFIG_VTD)
>
> I have applied all suggested change except CONFIG_VTD here as it's a device config and iommufd.c is device agnostic, it doesn't recognize CONFIG_VTD.
>
> ../backends/iommufd.c:419:13: error: attempt to use poisoned "CONFIG_VTD"
>
> I thought this is trivial and OK for not having CONFIG_VTD?
Hmm.. I didn't expect that. It seems that QEMU does encourage
moving all vendor specific code to vendor specific file :-/
Anyway, I think it's fine to drop the ifdef. The VTD type and
cap structure are defined in the shared uAPI header.
Nicolin
next prev parent reply other threads:[~2025-09-24 8:29 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-18 8:57 [PATCH v6 00/22] intel_iommu: Enable first stage translation for passthrough device Zhenzhong Duan
2025-09-18 8:57 ` [PATCH v6 01/22] intel_iommu: Rename vtd_ce_get_rid2pasid_entry to vtd_ce_get_pasid_entry Zhenzhong Duan
2025-09-18 8:57 ` [PATCH v6 02/22] intel_iommu: Delete RPS capability related supporting code Zhenzhong Duan
2025-09-30 13:49 ` Eric Auger
2025-10-09 10:10 ` Duan, Zhenzhong
2025-10-12 12:30 ` Yi Liu
2025-09-18 8:57 ` [PATCH v6 03/22] intel_iommu: Update terminology to match VTD spec Zhenzhong Duan
2025-09-30 7:45 ` Eric Auger
2025-10-12 12:30 ` Yi Liu
2025-10-13 6:20 ` Duan, Zhenzhong
2025-09-18 8:57 ` [PATCH v6 04/22] hw/pci: Export pci_device_get_iommu_bus_devfn() and return bool Zhenzhong Duan
2025-09-18 8:57 ` [PATCH v6 05/22] hw/pci: Introduce pci_device_get_viommu_flags() Zhenzhong Duan
2025-09-23 18:47 ` Nicolin Chen
2025-09-24 7:05 ` Duan, Zhenzhong
2025-09-24 8:21 ` Nicolin Chen
2025-09-26 2:54 ` Duan, Zhenzhong
2025-09-30 13:55 ` Eric Auger
2025-10-12 12:26 ` Yi Liu
2025-10-13 6:24 ` Duan, Zhenzhong
2025-09-18 8:57 ` [PATCH v6 06/22] intel_iommu: Implement get_viommu_flags() callback Zhenzhong Duan
2025-10-12 12:28 ` Yi Liu
2025-10-13 6:26 ` Duan, Zhenzhong
2025-09-18 8:57 ` [PATCH v6 07/22] intel_iommu: Introduce a new structure VTDHostIOMMUDevice Zhenzhong Duan
2025-09-18 8:57 ` [PATCH v6 08/22] vfio/iommufd: Force creating nesting parent HWPT Zhenzhong Duan
2025-09-30 14:19 ` Eric Auger
2025-10-12 12:33 ` Yi Liu
2025-09-18 8:57 ` [PATCH v6 09/22] intel_iommu: Stick to system MR for IOMMUFD backed host device when x-fls=on Zhenzhong Duan
2025-09-30 15:04 ` Eric Auger
2025-10-09 10:10 ` Duan, Zhenzhong
2025-10-12 12:51 ` Yi Liu
2025-09-18 8:57 ` [PATCH v6 10/22] intel_iommu: Check for compatibility with IOMMUFD backed device when x-flts=on Zhenzhong Duan
2025-10-12 12:55 ` Yi Liu
2025-10-13 6:48 ` Duan, Zhenzhong
2025-09-18 8:57 ` [PATCH v6 11/22] intel_iommu: Fail passthrough device under PCI bridge if x-flts=on Zhenzhong Duan
2025-09-18 8:57 ` [PATCH v6 12/22] intel_iommu: Handle PASID cache invalidation Zhenzhong Duan
2025-10-12 14:58 ` Yi Liu
2025-10-13 7:37 ` Duan, Zhenzhong
2025-10-13 12:53 ` Yi Liu
2025-09-18 8:57 ` [PATCH v6 13/22] intel_iommu: Reset pasid cache when system level reset Zhenzhong Duan
2025-10-13 10:25 ` Yi Liu
2025-09-18 8:57 ` [PATCH v6 14/22] intel_iommu: Add some macros and inline functions Zhenzhong Duan
2025-10-13 10:25 ` Yi Liu
2025-09-18 8:57 ` [PATCH v6 15/22] intel_iommu: Bind/unbind guest page table to host Zhenzhong Duan
2025-09-18 8:57 ` [PATCH v6 16/22] intel_iommu: Propagate PASID-based iotlb invalidation " Zhenzhong Duan
2025-09-18 8:57 ` [PATCH v6 17/22] intel_iommu: Replay all pasid bindings when either SRTP or TE bit is changed Zhenzhong Duan
2025-09-18 8:57 ` [PATCH v6 18/22] iommufd: Introduce a helper function to extract vendor capabilities Zhenzhong Duan
2025-09-23 19:45 ` Nicolin Chen
2025-09-24 8:05 ` Duan, Zhenzhong
2025-09-24 8:27 ` Nicolin Chen [this message]
2025-09-26 2:54 ` Duan, Zhenzhong
2025-09-18 8:57 ` [PATCH v6 19/22] vfio: Add a new element bypass_ro in VFIOContainerBase Zhenzhong Duan
2025-09-26 12:25 ` Cédric Le Goater
2025-09-18 8:57 ` [PATCH v6 20/22] Workaround for ERRATA_772415_SPR17 Zhenzhong Duan
2025-09-18 8:58 ` [PATCH v6 21/22] intel_iommu: Enable host device when x-flts=on in scalable mode Zhenzhong Duan
2025-09-18 8:58 ` [PATCH v6 22/22] docs/devel: Add IOMMUFD nesting documentation Zhenzhong Duan
2025-09-18 10:00 ` Cédric Le Goater
2025-09-19 2:17 ` Duan, Zhenzhong
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