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From: "Duan, Zhenzhong" <zhenzhong.duan@intel.com>
To: "Liu, Yi L" <yi.l.liu@intel.com>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Cc: "alex@shazbot.org" <alex@shazbot.org>,
	"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>,
	"jgg@nvidia.com" <jgg@nvidia.com>,
	"nicolinc@nvidia.com" <nicolinc@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>,
	"Hao, Xudong" <xudong.hao@intel.com>
Subject: RE: [PATCH v1 08/13] intel_iommu: Handle PASID entry removal for pc_inv_dsc request
Date: Mon, 23 Mar 2026 08:41:18 +0000	[thread overview]
Message-ID: <IA3PR11MB913636BA972616ABC982D1D2924BA@IA3PR11MB9136.namprd11.prod.outlook.com> (raw)
In-Reply-To: <4aca274a-9b96-4963-9b36-fd710815d053@intel.com>



>-----Original Message-----
>From: Liu, Yi L <yi.l.liu@intel.com>
>Subject: Re: [PATCH v1 08/13] intel_iommu: Handle PASID entry removal for
>pc_inv_dsc request
>
>On 3/23/26 14:08, Duan, Zhenzhong wrote:
>
>>>>    static void vtd_find_add_pc(VTDHostIOMMUDevice *vtd_hiod, uint32_t
>pasid,
>>>>                                VTDPASIDEntry *pe)
>>>>    {
>>>> @@ -423,6 +491,8 @@ void vtd_pasid_cache_sync_accel(IntelIOMMUState
>*s,
>>> VTDPASIDCacheInfo *pc_info)
>>>>                                     TYPE_HOST_IOMMU_DEVICE_IOMMUFD)) {
>>>>                continue;
>>>>            }
>>>> +
>>>> +        vtd_pasid_cache_invalidate(vtd_hiod, pc_info);
>>>>            vtd_replay_pasid_bind_for_dev(vtd_hiod, start, end, pc_info);
>
>a minor optimization, for PASDI selective, if
>vtd_pasid_cache_invalidate() already handled the invalidation, then the
>vtd_replay_pasid_bind_for_dev() can be skipped.

Good idea, will do.

Thanks
Zhenzhong

  reply	other threads:[~2026-03-23  8:42 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-06  3:43 [PATCH v1 00/13] intel_iommu: Enable PASID support for passthrough device Zhenzhong Duan
2026-03-06  3:43 ` [PATCH v1 01/13] vfio/iommufd: Extend attach/detach_hwpt callback implementations with pasid Zhenzhong Duan
2026-03-18 11:55   ` Yi Liu
2026-03-19  7:43     ` Duan, Zhenzhong
2026-03-06  3:43 ` [PATCH v1 02/13] iommufd: Extend attach/detach_hwpt callbacks to support pasid Zhenzhong Duan
2026-03-18 12:03   ` Yi Liu
2026-03-18 12:15     ` Yi Liu
2026-03-19  7:47     ` Duan, Zhenzhong
2026-03-06  3:43 ` [PATCH v1 03/13] vfio/iommufd: Create nesting parent hwpt with IOMMU_HWPT_ALLOC_PASID flag Zhenzhong Duan
2026-03-18 12:15   ` Yi Liu
2026-03-19  7:54     ` Duan, Zhenzhong
2026-03-06  3:43 ` [PATCH v1 04/13] intel_iommu: Create the nested " Zhenzhong Duan
2026-03-06  7:27   ` CLEMENT MATHIEU--DRIF
2026-03-18 12:18   ` Yi Liu
2026-03-06  3:43 ` [PATCH v1 05/13] intel_iommu: Change pasid property from bool to uint8 Zhenzhong Duan
2026-03-18 12:20   ` Yi Liu
2026-03-19  8:08     ` Duan, Zhenzhong
2026-03-06  3:44 ` [PATCH v1 06/13] intel_iommu: Export some functions Zhenzhong Duan
2026-03-18 12:21   ` Yi Liu
2026-03-06  3:44 ` [PATCH v1 07/13] intel_iommu: Handle PASID entry addition for pc_inv_dsc request Zhenzhong Duan
2026-03-18 12:42   ` Yi Liu
2026-03-19  8:26     ` Duan, Zhenzhong
2026-03-20 10:13       ` Yi Liu
2026-03-23  5:59         ` Duan, Zhenzhong
2026-03-20 10:08   ` Yi Liu
2026-03-23  5:50     ` Duan, Zhenzhong
2026-03-23  7:38       ` Yi Liu
2026-03-23  8:11         ` Duan, Zhenzhong
2026-03-06  3:44 ` [PATCH v1 08/13] intel_iommu: Handle PASID entry removal " Zhenzhong Duan
2026-03-20 10:08   ` Yi Liu
2026-03-23  6:08     ` Duan, Zhenzhong
2026-03-23  7:40       ` Yi Liu
2026-03-23  8:12         ` Duan, Zhenzhong
2026-03-23  7:43       ` Yi Liu
2026-03-23  8:41         ` Duan, Zhenzhong [this message]
2026-03-06  3:44 ` [PATCH v1 09/13] intel_iommu: Handle PASID entry removal for system reset Zhenzhong Duan
2026-03-06  3:44 ` [PATCH v1 10/13] intel_iommu_accel: Support pasid binding/unbinding and PIOTLB flushing Zhenzhong Duan
2026-03-06  3:44 ` [PATCH v1 11/13] intel_iommu_accel: drop _lock suffix in vtd_flush_host_piotlb_all_locked() Zhenzhong Duan
2026-03-19  8:02   ` CLEMENT MATHIEU--DRIF
2026-03-19  9:07     ` Duan, Zhenzhong
2026-03-20  4:04       ` Duan, Zhenzhong
2026-03-06  3:44 ` [PATCH v1 12/13] intel_iommu_accel: Add pasid bits size check Zhenzhong Duan
2026-03-06  7:27   ` CLEMENT MATHIEU--DRIF
2026-03-09  2:16     ` Duan, Zhenzhong
2026-03-06  3:44 ` [PATCH v1 13/13] intel_iommu: Expose flag VIOMMU_FLAG_PASID_SUPPORTED when configured Zhenzhong Duan

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