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Re: [Qemu-devel] [PATCH v3 1/3] IOMMU: add VTD_CAP_CM to vIOMMU capabili
From: |
Aviv B.D. |
Subject: |
Re: [Qemu-devel] [PATCH v3 1/3] IOMMU: add VTD_CAP_CM to vIOMMU capability exposed to guest |
Date: |
Sat, 28 May 2016 16:12:20 +0000 |
What is the best way to add this configuration option?
Aviv.
On Tue, May 24, 2016 at 12:25 PM Jan Kiszka <address@hidden> wrote:
> On 2016-05-24 10:14, Jason Wang wrote:
> > On 2016年05月22日 00:19, Aviv B.D wrote:
> >> From: "Aviv Ben-David" <address@hidden>
> >>
> >> This flag tells the guest to invalidate tlb cache also after unmap
> >> operations.
> >>
> >> Signed-off-by: Aviv Ben-David <address@hidden>
> >> ---
> >
> > Is this a guest visible behavior? If yes, shouldn't we cache
> > translation fault conditions in IOTLB?
>
> It is guest visible, and this first of all means, besides requiring to
> be optional, that it definitely needs to be off for compat systems. Or
> it stays off by default.
>
> Jan
>
> --
> Siemens AG, Corporate Technology, CT RDA ITP SES-DE
> Corporate Competence Center Embedded Linux
>
[Qemu-devel] [PATCH v3 3/3] IOMMU: Integrate between VFIO and vIOMMU to support device assignment, Aviv B.D, 2016/05/21
- Re: [Qemu-devel] [PATCH v3 3/3] IOMMU: Integrate between VFIO and vIOMMU to support device assignment, Alex Williamson, 2016/05/23
- Re: [Qemu-devel] [PATCH v3 3/3] IOMMU: Integrate between VFIO and vIOMMU to support device assignment, Alex Williamson, 2016/05/26
- Re: [Qemu-devel] [PATCH v3 3/3] IOMMU: Integrate between VFIO and vIOMMU to support device assignment, Aviv B.D., 2016/05/28
- Re: [Qemu-devel] [PATCH v3 3/3] IOMMU: Integrate between VFIO and vIOMMU to support device assignment, Alex Williamson, 2016/05/28
- Re: [Qemu-devel] [PATCH v3 3/3] IOMMU: Integrate between VFIO and vIOMMU to support device assignment, Aviv B.D., 2016/05/28
- Re: [Qemu-devel] [PATCH v3 3/3] IOMMU: Integrate between VFIO and vIOMMU to support device assignment, Alex Williamson, 2016/05/28
- Re: [Qemu-devel] [PATCH v3 3/3] IOMMU: Integrate between VFIO and vIOMMU to support device assignment, Aviv B.D., 2016/05/28
- Re: [Qemu-devel] [PATCH v3 3/3] IOMMU: Integrate between VFIO and vIOMMU to support device assignment, Alex Williamson, 2016/05/28