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...M support > >> OvmfPkg/VirtioBlkDxe: Add VIRITO_F_IOMMU_PLATFORM support > > > > Hi, do we need change virtio-scsi driver as well? > > > I see that OVMF has the following virtio drivers, we need to update them > all: > > VirtioBlkDxe > VirtioGpuDxe > VirtioNetDxe > VirtioRngDxe > VirtioScsiDxe > > I will wait for Laszlo and Jordan's initial feedback before changing > other drivers. I'm not sure about the GPU. Cc relevant maintainers - can virtio GPU work from behind an IOMMU? > > Thanks > > > >> > >>...

...M support > >> OvmfPkg/VirtioBlkDxe: Add VIRITO_F_IOMMU_PLATFORM support > > > > Hi, do we need change virtio-scsi driver as well? > > > I see that OVMF has the following virtio drivers, we need to update them > all: > > VirtioBlkDxe > VirtioGpuDxe > VirtioNetDxe > VirtioRngDxe > VirtioScsiDxe > > I will wait for Laszlo and Jordan's initial feedback before changing > other drivers. I'm not sure about the GPU. Cc relevant maintainers - can virtio GPU work from behind an IOMMU? > > Thanks > > > >> > >>...

...'t find Stefan's email on any mailing list archive (sourceforge, gmane, mail-archive etc. all have only my response), so I'll quote it here. The patch Stefan was reviewing is <http://thread.gmane.org/gmane.comp.bios.tianocore.devel/2804/focus=2819>: [PATCH v3 10/15] OvmfPkg: VirtioNetDxe: implement Tx: SNP.Transmit and SNP.GetStatus On 06/07/13 16:17, Stefan Hajnoczi wrote: > There is no read memory barrier between fetching TxCurUsed and > fetching UsedElem[].Id. In theory I think there is no guarantee that > Dev->TxRing.Used.UsedElem[UsedElemIdx].Id is fetched *afte...

...'t find Stefan's email on any mailing list archive (sourceforge, gmane, mail-archive etc. all have only my response), so I'll quote it here. The patch Stefan was reviewing is <http://thread.gmane.org/gmane.comp.bios.tianocore.devel/2804/focus=2819>: [PATCH v3 10/15] OvmfPkg: VirtioNetDxe: implement Tx: SNP.Transmit and SNP.GetStatus On 06/07/13 16:17, Stefan Hajnoczi wrote: > There is no read memory barrier between fetching TxCurUsed and > fetching UsedElem[].Id. In theory I think there is no guarantee that > Dev->TxRing.Used.UsedElem[UsedElemIdx].Id is fetched *afte...

...mailing list archive > (sourceforge, gmane, mail-archive etc. all have only my response), so > I'll quote it here. > > The patch Stefan was reviewing is > <http://thread.gmane.org/gmane.comp.bios.tianocore.devel/2804/focus=2819>: > > [PATCH v3 10/15] > OvmfPkg: VirtioNetDxe: implement Tx: SNP.Transmit and SNP.GetStatus > > On 06/07/13 16:17, Stefan Hajnoczi wrote: > >> There is no read memory barrier between fetching TxCurUsed and >> fetching UsedElem[].Id. In theory I think there is no guarantee that >> Dev->TxRing.Used.UsedElem[UsedEle...