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From: Yi Liu <yi.l.liu@intel.com>
To: "Duan, Zhenzhong" <zhenzhong.duan@intel.com>,
	Jason Wang <jasowang@redhat.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>,
	"peterx@redhat.com" <peterx@redhat.com>,
	"jgg@nvidia.com" <jgg@nvidia.com>,
	"nicolinc@nvidia.com" <nicolinc@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>,
	"Peng, Chao P" <chao.p.peng@intel.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Richard Henderson <richard.henderson@linaro.org>,
	Eduardo Habkost <eduardo@habkost.net>,
	Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Subject: Re: [PATCH v3 15/17] intel_iommu: Modify x-scalable-mode to be string option to expose scalable modern mode
Date: Mon, 4 Nov 2024 11:24:37 +0800	[thread overview]
Message-ID: <bbcf1216-19b9-4d05-ba57-e451f3566f4f@intel.com> (raw)
In-Reply-To: <SJ0PR11MB6744F7B57D686541929B02C492752@SJ0PR11MB6744.namprd11.prod.outlook.com>

On 2024/9/29 10:44, Duan, Zhenzhong wrote
>>
>> A question here:
>>
>> Are there any other major features that are still lacking for scalable
>> mode? If not, maybe we can get rid of the "x" prefix?
> 
> We don't support stage-1 and stage-2 coexist emulation and nested translation emulation through stage-1 and stage-2 yet.
> 
> Currently we only support either stage-1 or stage-2 in scalable mode, one reason is supporting stage1 is enough for current usage,
> the other reason is to simplify the nesting series https://github.com/yiliu1765/qemu/tree/zhenzhong/iommufd_nesting_rfcv2 for review.

PRI is also a missing part. :)


-- 
Regards,
Yi Liu


  reply	other threads:[~2024-11-04  3:20 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-11  5:22 [PATCH v3 00/17] intel_iommu: Enable stage-1 translation for emulated device Zhenzhong Duan
2024-09-11  5:22 ` [PATCH v3 01/17] intel_iommu: Use the latest fault reasons defined by spec Zhenzhong Duan
2024-09-27  0:12   ` Jason Wang
2024-09-11  5:22 ` [PATCH v3 02/17] intel_iommu: Make pasid entry type check accurate Zhenzhong Duan
2024-09-27  0:13   ` Jason Wang
2024-09-11  5:22 ` [PATCH v3 03/17] intel_iommu: Add a placeholder variable for scalable modern mode Zhenzhong Duan
2024-09-11  6:26   ` CLEMENT MATHIEU--DRIF
2024-09-11  8:38     ` Duan, Zhenzhong
2024-09-27  0:15   ` Jason Wang
2024-09-11  5:22 ` [PATCH v3 04/17] intel_iommu: Flush stage-2 cache in PASID-selective PASID-based iotlb invalidation Zhenzhong Duan
2024-09-11  6:54   ` CLEMENT MATHIEU--DRIF
2024-09-27  3:47   ` Jason Wang
2024-09-27  6:38     ` Duan, Zhenzhong
2024-09-11  5:22 ` [PATCH v3 05/17] intel_iommu: Rename slpte to pte Zhenzhong Duan
2024-09-27  3:47   ` Jason Wang
2024-09-29 12:43   ` Yi Liu
2024-09-30  3:43     ` Duan, Zhenzhong
2024-09-11  5:22 ` [PATCH v3 06/17] intel_iommu: Implement stage-1 translation Zhenzhong Duan
2024-09-27  4:07   ` Jason Wang
2024-09-29 13:58   ` Yi Liu
2024-09-30  5:55     ` Duan, Zhenzhong
2024-09-11  5:22 ` [PATCH v3 07/17] intel_iommu: Check if the input address is canonical Zhenzhong Duan
2024-09-27  4:07   ` Jason Wang
2024-09-11  5:22 ` [PATCH v3 08/17] intel_iommu: Set accessed and dirty bits during first stage translation Zhenzhong Duan
2024-09-27  4:07   ` Jason Wang
2024-09-27  6:38     ` Duan, Zhenzhong
2024-09-11  5:22 ` [PATCH v3 09/17] intel_iommu: Flush stage-1 cache in iotlb invalidation Zhenzhong Duan
2024-09-27  4:07   ` Jason Wang
2024-09-11  5:22 ` [PATCH v3 10/17] intel_iommu: Process PASID-based " Zhenzhong Duan
2024-09-27  4:08   ` Jason Wang
2024-09-11  5:22 ` [PATCH v3 11/17] intel_iommu: Add an internal API to find an address space with PASID Zhenzhong Duan
2024-09-27  4:08   ` Jason Wang
2024-09-11  5:22 ` [PATCH v3 12/17] intel_iommu: Add support for PASID-based device IOTLB invalidation Zhenzhong Duan
2024-09-27  4:08   ` Jason Wang
2024-09-27  7:17     ` Duan, Zhenzhong
2024-09-27  8:02       ` Duan, Zhenzhong
2024-09-29  1:59       ` Jason Wang
2024-09-29  2:22         ` Duan, Zhenzhong
2024-12-16  8:21         ` Duan, Zhenzhong
2024-12-17  2:13           ` Jason Wang
2024-12-17  6:06             ` CLEMENT MATHIEU--DRIF
2024-09-11  5:22 ` [PATCH v3 13/17] intel_iommu: piotlb invalidation should notify unmap Zhenzhong Duan
2024-09-11  5:22 ` [PATCH v3 14/17] intel_iommu: Set default aw_bits to 48 in scalable modern mode Zhenzhong Duan
2024-09-27  4:08   ` Jason Wang
2024-09-27  6:38     ` Duan, Zhenzhong
2024-09-29  2:02       ` Jason Wang
2024-09-29  2:57         ` Duan, Zhenzhong
2024-09-11  5:22 ` [PATCH v3 15/17] intel_iommu: Modify x-scalable-mode to be string option to expose " Zhenzhong Duan
2024-09-11  6:54   ` CLEMENT MATHIEU--DRIF
2024-09-27  4:08   ` Jason Wang
2024-09-27  6:39     ` Duan, Zhenzhong
2024-09-29  2:00       ` Jason Wang
2024-09-29  2:44         ` Duan, Zhenzhong
2024-11-04  3:24           ` Yi Liu [this message]
2024-11-04  7:13             ` CLEMENT MATHIEU--DRIF
2024-09-11  5:22 ` [PATCH v3 16/17] intel_iommu: Introduce a property to control FS1GP cap bit setting Zhenzhong Duan
2024-09-27  4:08   ` Jason Wang
2024-09-27  6:39     ` Duan, Zhenzhong
2024-09-11  5:22 ` [PATCH v3 17/17] tests/qtest: Add intel-iommu test Zhenzhong Duan
2024-09-27  4:08   ` Jason Wang
2024-09-11  6:56 ` [PATCH v3 00/17] intel_iommu: Enable stage-1 translation for emulated device CLEMENT MATHIEU--DRIF
2024-09-11  8:43   ` Duan, Zhenzhong
2024-09-11 10:43     ` Michael S. Tsirkin
2024-09-26  9:25 ` Duan, Zhenzhong

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