Hi Brijesh,
On 09/01/17 13:24, Brijesh Singh wrote:
> The patch updates VirtioNetDxe to use IOMMU-like member functions to
> map the system physical address to device address for buffers
> (including vring, device specific request and response pointed by
> vring descriptor, and any furter memory reference by those request and
> response).
>
> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> Cc: Jordan Justen <jordan.l.justen@intel.com>
> Cc: Tom Lendacky <thomas.lendacky@amd.com>
> Cc: Laszlo Ersek <lersek@redhat.com>
>
> Repo: https://github.com/codomania/edk2
> Branch: virtio-net-1
>
> Brijesh Singh (5):
> OvmfPkg/VirtioNetDxe: map VRING using VirtioRingMap()
> OvmfPkg/VirtioNetDxe: alloc RxBuf using AllocateSharedPages()
> OvmfPkg/VirtioNetDxe: dynamically alloc transmit header
> OvmfPkg/VirtioNetDxe: map virtio-net transmit request buffer
> OvmfPkg/VirtioNetDxe: negotiate VIRTIO_F_IOMMU_PLATFORM
>
> OvmfPkg/VirtioNetDxe/VirtioNet.inf | 1 +
> OvmfPkg/VirtioNetDxe/VirtioNet.h | 27 ++-
> OvmfPkg/VirtioNetDxe/Events.c | 19 ++
> OvmfPkg/VirtioNetDxe/SnpGetStatus.c | 30 +++-
> OvmfPkg/VirtioNetDxe/SnpInitialize.c | 185 ++++++++++++++++----
> OvmfPkg/VirtioNetDxe/SnpSharedHelpers.c | 171 +++++++++++++++++-
> OvmfPkg/VirtioNetDxe/SnpShutdown.c | 2 +
> OvmfPkg/VirtioNetDxe/SnpTransmit.c | 37 +++-
> 8 files changed, 427 insertions(+), 45 deletions(-)
>
just adding a pointer so that my comment is linked under this thread as well:
[edk2] [PATCH 00/10] MdeModulePkg, OvmfPkg: unmap DMA buffers at
ExitBootServices
https://lists.01.org/pipermail/edk2-devel/2017-September/014304.html
On 09/08/17 00:41, Laszlo Ersek wrote:
> (The conversion of VirtioNetDxe to device addresses is still in
> progress -- Brijesh, when you submit v2 of that, under this approach,
> there is no need to change VirtioNetExitBoot() relative to current
> upstream, and you can use VirtioOperationBusMasterRead to map outgoing
> packets.)
Thanks!
Laszlo
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