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From: Lan Tianyu <tianyu.lan@intel.com>
To: Julien Grall <julien.grall@arm.com>, xen-devel@lists.xen.org
Cc: kevin.tian@intel.com, wei.liu2@citrix.com,
	andrew.cooper3@citrix.com, ian.jackson@eu.citrix.com,
	jbeulich@suse.com, chao.gao@intel.com
Subject: Re: [PATCH 5/25] Xen/doc: Add Xen virtual IOMMU doc
Date: Wed, 12 Jul 2017 11:09:15 +0800	[thread overview]
Message-ID: <ec00a524-cb31-1dc3-032d-f2685a8de82a@intel.com> (raw)
In-Reply-To: <d14c8a94-5c30-a90d-3f07-5551390c4f80@arm.com>

On 2017年07月08日 00:08, Julien Grall wrote:
>> Because we now just have onE vIOMMU, all virtual interrupt will be bound
>> to it. If need to support mult-vIOMMU, we can add device-scope
>> field(sbdf array or some thing like that) in the structure and specify
>> what devices should be under one vIOMMU.
> 
> I am not sure to follow the argument here. Even if you have only one
> vIOMMU you need to be able to do the correspondence between the virtual
> MasterID (for PCI it is based on the RID) and the host MasterID.

Hi Julien:
     Sorry for later response.
     MasterID you mentioned here is sbdf, right? Binding between sbdf
and vsbdf(virtual sbdf) should be in the device pass through related
interface(e.g, xc_domain_bind_pt_irq_int() has already done such similar
thing that bind vsbdf with real interrupt of hypervisor.).
     vIOMMU device model can get vsbdf when guest configure vIOMMU entry
and hypervisor can do conversion between sbdf and vsbdf. For interrupt
remapping on virtual VTD, we don't find such requirement so far and got
enough data from IOAPIC/MSI entry and interrupt remapping entry of
virtual VTD. So we don't extend pass through interface.

-- 
Best regards
Tianyu Lan

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  reply	other threads:[~2017-07-12  3:09 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-29  5:50 [PATCH 00/25] xen/vIOMMU: Add vIOMMU support with irq remapping fucntion of virtual vtd Lan Tianyu
2017-06-29  5:50 ` [PATCH 1/25] VIOMMU: Add vIOMMU helper functions to create, destroy and query capabilities Lan Tianyu
2017-06-30 13:05   ` Wei Liu
2017-07-04  1:46     ` Lan Tianyu
2017-07-04  7:34       ` Julien Grall
2017-07-04  7:53         ` Lan Tianyu
2017-07-04  7:57         ` Jan Beulich
2017-07-04 10:16           ` Julien Grall
2017-07-04 10:18             ` Julien Grall
2017-07-04  7:55       ` Jan Beulich
2017-07-04  8:45         ` Lan Tianyu
2017-07-04 10:03           ` Jan Beulich
2017-06-29  5:50 ` [PATCH 2/25] DOMCTL: Introduce new DOMCTL commands for vIOMMU support Lan Tianyu
2017-06-30 13:07   ` Wei Liu
2017-06-29  5:50 ` [PATCH 3/25] VIOMMU: Add irq request callback to deal with irq remapping Lan Tianyu
2017-06-29  5:50 ` [PATCH 4/25] VIOMMU: Add get irq info callback to convert irq remapping request Lan Tianyu
2017-06-29  5:50 ` [PATCH 5/25] Xen/doc: Add Xen virtual IOMMU doc Lan Tianyu
2017-07-04 10:39   ` Julien Grall
2017-07-05  3:15     ` Lan Tianyu
2017-07-05 13:25       ` Julien Grall
2017-07-06  3:10         ` Lan Tianyu
2017-07-07 16:08           ` Julien Grall
2017-07-12  3:09             ` Lan Tianyu [this message]
2017-07-12  7:26               ` Julien Grall
2017-07-12 11:44                 ` Lan Tianyu
2017-07-06  6:20         ` Lan Tianyu
2017-07-07 16:16           ` Julien Grall
2017-07-12  5:34             ` Lan Tianyu
2017-06-29  5:50 ` [PATCH 6/25] Tools/libxc: Add viommu operations in libxc Lan Tianyu
2017-06-30 13:44   ` Wei Liu
2017-06-29  5:50 ` [PATCH 7/25] Tools/libacpi: Add DMA remapping reporting (DMAR) ACPI table structures Lan Tianyu
2017-06-29  5:50 ` [PATCH 8/25] Tools/libacpi: Add new fields in acpi_config to build DMAR table Lan Tianyu
2017-06-29  5:50 ` [PATCH 9/25] Tools/libacpi: Add a user configurable parameter to control vIOMMU attributes Lan Tianyu
2017-06-30 13:44   ` Wei Liu
2017-06-29  5:50 ` [PATCH 10/25] libxl: create vIOMMU during domain construction Lan Tianyu
2017-06-30 13:45   ` Wei Liu
2017-07-04 10:46   ` Julien Grall
2017-07-04 11:03     ` Wei Liu
2017-07-05 10:53       ` Lan Tianyu
2017-07-05 11:19         ` Wei Liu
2017-07-05 11:32           ` Lan Tianyu
2017-07-05 11:39             ` Wei Liu
2017-06-29  5:50 ` [PATCH 11/25] x86/hvm: Introduce a emulated VTD for HVM Lan Tianyu
2017-06-29  5:50 ` [PATCH 12/25] X86/vvtd: Add MMIO handler for VVTD Lan Tianyu
2017-06-30 13:46   ` Wei Liu
2017-06-29  5:50 ` [PATCH 13/25] X86/vvtd: Set Interrupt Remapping Table Pointer through GCMD Lan Tianyu
2017-06-29  5:50 ` [PATCH 14/25] X86/vvtd: Process interrupt remapping request Lan Tianyu
2017-06-29  5:50 ` [PATCH 15/25] x86/vvtd: decode interrupt attribute from IRTE Lan Tianyu
2017-06-29  5:50 ` [PATCH 16/25] x86/vioapic: Hook interrupt delivery of vIOAPIC Lan Tianyu
2017-06-29  5:50 ` [PATCH 17/25] X86/vvtd: Enable Queued Invalidation through GCMD Lan Tianyu
2017-06-29  5:50 ` [PATCH 18/25] X86/vvtd: Enable Interrupt Remapping " Lan Tianyu
2017-06-29  5:50 ` [PATCH 19/25] x86/vioapic: introduce a function to get vector from pin Lan Tianyu
2017-06-29  5:50 ` [PATCH 20/25] passthrough: move some fields of hvm_gmsi_info to a sub-structure Lan Tianyu
2017-06-29  5:50 ` [PATCH 21/25] Tools/libxc: Add a new interface to bind remapping format msi with pirq Lan Tianyu
2017-06-30 13:48   ` Wei Liu
2017-06-29  5:50 ` [PATCH 22/25] x86/vmsi: Hook delivering remapping format msi to guest Lan Tianyu
2017-06-29  5:50 ` [PATCH 23/25] x86/vvtd: Handle interrupt translation faults Lan Tianyu
2017-06-29  5:50 ` [PATCH 24/25] x86/vvtd: Add queued invalidation (QI) support Lan Tianyu
2017-06-29  5:50 ` [PATCH 25/25] x86/vvtd: save and restore emulated VT-d Lan Tianyu

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