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Author SHA1 Message Date
Laszlo Ersek dc9447bd37 OvmfPkg: Virtio: load used ring element strictly after loading used index 
Enforce in-order execution of these steps even on not sequentially
consistent architectures, as discussed in [1]. These changes should be
unnecessary on x86 (the only architecture OVMF currently supports), but
they align the OVMF virtio code with the virtio specification and could be
necessary for future OVMF ports.

[1] http://lists.linuxfoundation.org/pipermail/virtualization/2013-June/024547.html

Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14601 6f19259b-4bc3-4df7-8a09-765794883524
 2013-08-23 18:46:03 +00:00
Jordan Justen 8258c4e643 OvmfPkg/VirtioNetDxe: Fix build errors on VS2012 (IA32 & X64) 
These changes were needed in addition to the silence.patch
that Laszlo posted on May 28.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14420 6f19259b-4bc3-4df7-8a09-765794883524
 2013-06-14 07:41:05 +00:00
Laszlo Ersek b6dfc654c8 OvmfPkg: VirtioNetDxe: implement Tx: SNP.Transmit and SNP.GetStatus 
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14413 6f19259b-4bc3-4df7-8a09-765794883524
 2013-06-14 07:40:24 +00:00