From: Laszlo Ersek <lersek@redhat.com>
To: Brijesh Singh <brijesh.singh@amd.com>, edk2-devel@lists.01.org
Cc: Jordan Justen <jordan.l.justen@intel.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>
Subject: Re: [PATCH v3 3/8] OvmfPkg/VirtioNetDxe: alloc RxBuf using AllocateSharedPages()
Date: Thu, 14 Sep 2017 21:04:01 +0200 [thread overview]
Message-ID: <449062af-9006-4ab8-6de0-ce58f4157214@redhat.com> (raw)
In-Reply-To: <20170914110822.112540-4-brijesh.singh@amd.com>
On 09/14/17 13:08, Brijesh Singh wrote:
> When device is behind the IOMMU, VirtioNetDxe is required to use the
> device address in bus master operations. RxBuf is allocated using
> AllocatePool() which returns the system physical address.
>
> The patch uses VIRTIO_DEVICE_PROTOCOL.AllocateSharedPages() to allocate
> the RxBuf and map with VirtioMapAllBytesInSharedBuffer() so that we can
> obtain the device address for RxBuf.
>
> 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>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
> ---
> OvmfPkg/VirtioNetDxe/VirtioNet.h | 4 +
> OvmfPkg/VirtioNetDxe/SnpInitialize.c | 78 +++++++++++++++-----
> OvmfPkg/VirtioNetDxe/SnpReceive.c | 5 +-
> OvmfPkg/VirtioNetDxe/SnpSharedHelpers.c | 7 +-
> OvmfPkg/VirtioNetDxe/TechNotes.txt | 2 +-
> 5 files changed, 75 insertions(+), 21 deletions(-)
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
next prev parent reply other threads:[~2017-09-14 19:01 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-14 11:08 [PATCH v3 0/8] OvmfPkg/VirtioNetDxe: map host address to device address Brijesh Singh
2017-09-14 11:08 ` [PATCH v3 1/8] OvmfPkg/VirtioNetDxe: add helper VirtioNetUninitRing() Brijesh Singh
2017-09-14 11:08 ` [PATCH v3 2/8] OvmfPkg/VirtioNetDxe: map VRINGs using VirtioRingMap() Brijesh Singh
2017-09-14 18:57 ` Laszlo Ersek
2017-09-14 11:08 ` [PATCH v3 3/8] OvmfPkg/VirtioNetDxe: alloc RxBuf using AllocateSharedPages() Brijesh Singh
2017-09-14 19:04 ` Laszlo Ersek [this message]
2017-09-14 11:08 ` [PATCH v3 4/8] OvmfPkg/VirtioNetDxe: dynamically alloc transmit header Brijesh Singh
2017-09-14 19:12 ` Laszlo Ersek
2017-09-14 11:08 ` [PATCH v3 5/8] OvmfPkg/VirtioNetDxe: update TechNotes Brijesh Singh
2017-09-14 11:08 ` [PATCH v3 6/8] OvmfPkg/VirtioNetDxe: add Tx packet map/unmap helper functions Brijesh Singh
2017-09-14 19:56 ` Laszlo Ersek
2017-09-14 11:08 ` [PATCH v3 7/8] OvmfPkg/VirtioNetDxe: map caller-supplied Tx packet to device-address Brijesh Singh
2017-09-14 20:58 ` Laszlo Ersek
2017-09-14 21:01 ` Brijesh Singh
2017-09-14 11:08 ` [PATCH v3 8/8] OvmfPkg/VirtioNetDxe: negotiate VIRTIO_F_IOMMU_PLATFORM Brijesh Singh
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-list from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=449062af-9006-4ab8-6de0-ce58f4157214@redhat.com \
--to=devel@edk2.groups.io \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox