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[Xen-devel] [PATCH RFC 00/18] Introducing Xen PV block driver to OVMF



Hi all,

This patch series is implementing the necessary in order to access a PV block
device. For that, one need a XenStore client, a XenBus client, and the PV block
driver.

There are two new drivers, XenbusDxe and XenPvBlkDxe. The first one implement a
bus drivers, and the second is a block drivers.

There are still a bit of work to be done on this series, especially the comment
in the code, but I'd like your comment on this patch series.

Anthony PERARD (18):
  OvmfPkg: Add public headers from Xen Project.
  OvmfPkg: Add basic skeleton for the Xenbus driver.
  OvmfPkg/XenbusDxe: Add device state struct and create an ExitBoot
    services event.
  OvmfPkg/XenbusDxe: Add support to make Xen Hypercalls.
  OvmfPkg/XenbusDxe: Open PciIo protocol.
  OvmfPkg: Introduce Xenbus Protocol.
  OvmfPkg/XenbusDxe: Add InterlockedCompareExchange16.
  OvmfPkg/XenbusDxe: Add Grant Table functions.
  OvmfPkg/XenbusDxe: Add Event Channel Notify.
  OvmfPkg/XenbusDxe: Add TestAndClearBit.
  OvmfPkg/XenbusDxe: Add XenStore client implementation
  OvmfPkg/XenbusDxe: Add an helper AsciiStrDup.
  OvmfPkg/XenbusDxe: Add Xenstore function into the Xenbus protocol
  OvmfPkg/XenbusDxe: Indroduce XenBus support itself.
  OvmfPkg/XenbusDxe: Add Event Channel into XenBus protocol.
  OvmfPkg/XenPvBlkDxe: Xen PV Block device, initial skeleton
  OvmfPkg/XenPvBlkDxe: Add BlockFront client.
  OvmfPkg/XenPvBlkDxe: Add BlockIo.

 .../IndustryStandard/Xen/arch-x86/xen-x86_32.h     |  171 +++
 .../IndustryStandard/Xen/arch-x86/xen-x86_64.h     |  202 +++
 .../Include/IndustryStandard/Xen/arch-x86/xen.h    |  273 ++++
 .../Include/IndustryStandard/Xen/event_channel.h   |  381 +++++
 OvmfPkg/Include/IndustryStandard/Xen/grant_table.h |  662 +++++++++
 OvmfPkg/Include/IndustryStandard/Xen/hvm/hvm_op.h  |  275 ++++
 OvmfPkg/Include/IndustryStandard/Xen/hvm/params.h  |  150 ++
 OvmfPkg/Include/IndustryStandard/Xen/io/blkif.h    |  608 ++++++++
 .../Include/IndustryStandard/Xen/io/protocols.h    |   40 +
 OvmfPkg/Include/IndustryStandard/Xen/io/ring.h     |  312 +++++
 OvmfPkg/Include/IndustryStandard/Xen/io/xenbus.h   |   80 ++
 OvmfPkg/Include/IndustryStandard/Xen/io/xs_wire.h  |  138 ++
 OvmfPkg/Include/IndustryStandard/Xen/memory.h      |  480 +++++++
 OvmfPkg/Include/IndustryStandard/Xen/sched.h       |  174 +++
 OvmfPkg/Include/IndustryStandard/Xen/trace.h       |  310 +++++
 OvmfPkg/Include/IndustryStandard/Xen/xen-compat.h  |   44 +
 OvmfPkg/Include/IndustryStandard/Xen/xen.h         |  897 ++++++++++++
 OvmfPkg/Include/Protocol/Xenbus.h                  |  231 +++
 OvmfPkg/OvmfPkg.dec                                |    2 +
 OvmfPkg/OvmfPkgX64.dsc                             |    2 +
 OvmfPkg/OvmfPkgX64.fdf                             |    2 +
 OvmfPkg/XenPvBlkDxe/BlockFront.c                   |  583 ++++++++
 OvmfPkg/XenPvBlkDxe/BlockFront.h                   |   88 ++
 OvmfPkg/XenPvBlkDxe/BlockIo.c                      |  256 ++++
 OvmfPkg/XenPvBlkDxe/BlockIo.h                      |  109 ++
 OvmfPkg/XenPvBlkDxe/ComponentName.c                |  160 +++
 OvmfPkg/XenPvBlkDxe/ComponentName.h                |   91 ++
 OvmfPkg/XenPvBlkDxe/DriverBinding.h                |  139 ++
 OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.c                  |  388 ++++++
 OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.h                  |   83 ++
 OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf                |   61 +
 OvmfPkg/XenbusDxe/ComponentName.c                  |  160 +++
 OvmfPkg/XenbusDxe/ComponentName.h                  |   91 ++
 OvmfPkg/XenbusDxe/DriverBinding.h                  |  139 ++
 OvmfPkg/XenbusDxe/EventChannel.c                   |   71 +
 OvmfPkg/XenbusDxe/EventChannel.h                   |   40 +
 OvmfPkg/XenbusDxe/GrantTable.c                     |  204 +++
 OvmfPkg/XenbusDxe/GrantTable.h                     |   34 +
 OvmfPkg/XenbusDxe/Helpers.c                        |    9 +
 OvmfPkg/XenbusDxe/InterlockedCompareExchange16.h   |    7 +
 .../XenbusDxe/X64/InterlockedCompareExchange16.c   |   41 +
 OvmfPkg/XenbusDxe/X64/TestAndClearBit.S            |   10 +
 OvmfPkg/XenbusDxe/X64/hypercall.S                  |   16 +
 OvmfPkg/XenbusDxe/X64/hypercall.asm                |   19 +
 OvmfPkg/XenbusDxe/XenBus.c                         |  363 +++++
 OvmfPkg/XenbusDxe/XenBus.h                         |   76 +
 OvmfPkg/XenbusDxe/XenHypercall.c                   |  101 ++
 OvmfPkg/XenbusDxe/XenHypercall.h                   |   44 +
 OvmfPkg/XenbusDxe/XenbusDxe.c                      |  452 ++++++
 OvmfPkg/XenbusDxe/XenbusDxe.h                      |  131 ++
 OvmfPkg/XenbusDxe/XenbusDxe.inf                    |   75 +
 OvmfPkg/XenbusDxe/Xenstore.c                       | 1472 ++++++++++++++++++++
 OvmfPkg/XenbusDxe/Xenstore.h                       |  367 +++++
 53 files changed, 11314 insertions(+)
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/arch-x86/xen-x86_32.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/arch-x86/xen-x86_64.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/arch-x86/xen.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/event_channel.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/grant_table.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/hvm/hvm_op.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/hvm/params.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/io/blkif.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/io/protocols.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/io/ring.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/io/xenbus.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/io/xs_wire.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/memory.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/sched.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/trace.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/xen-compat.h
 create mode 100644 OvmfPkg/Include/IndustryStandard/Xen/xen.h
 create mode 100644 OvmfPkg/Include/Protocol/Xenbus.h
 create mode 100644 OvmfPkg/XenPvBlkDxe/BlockFront.c
 create mode 100644 OvmfPkg/XenPvBlkDxe/BlockFront.h
 create mode 100644 OvmfPkg/XenPvBlkDxe/BlockIo.c
 create mode 100644 OvmfPkg/XenPvBlkDxe/BlockIo.h
 create mode 100644 OvmfPkg/XenPvBlkDxe/ComponentName.c
 create mode 100644 OvmfPkg/XenPvBlkDxe/ComponentName.h
 create mode 100644 OvmfPkg/XenPvBlkDxe/DriverBinding.h
 create mode 100644 OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.c
 create mode 100644 OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.h
 create mode 100644 OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
 create mode 100644 OvmfPkg/XenbusDxe/ComponentName.c
 create mode 100644 OvmfPkg/XenbusDxe/ComponentName.h
 create mode 100644 OvmfPkg/XenbusDxe/DriverBinding.h
 create mode 100644 OvmfPkg/XenbusDxe/EventChannel.c
 create mode 100644 OvmfPkg/XenbusDxe/EventChannel.h
 create mode 100644 OvmfPkg/XenbusDxe/GrantTable.c
 create mode 100644 OvmfPkg/XenbusDxe/GrantTable.h
 create mode 100644 OvmfPkg/XenbusDxe/Helpers.c
 create mode 100644 OvmfPkg/XenbusDxe/InterlockedCompareExchange16.h
 create mode 100644 OvmfPkg/XenbusDxe/X64/InterlockedCompareExchange16.c
 create mode 100644 OvmfPkg/XenbusDxe/X64/TestAndClearBit.S
 create mode 100644 OvmfPkg/XenbusDxe/X64/hypercall.S
 create mode 100644 OvmfPkg/XenbusDxe/X64/hypercall.asm
 create mode 100644 OvmfPkg/XenbusDxe/XenBus.c
 create mode 100644 OvmfPkg/XenbusDxe/XenBus.h
 create mode 100644 OvmfPkg/XenbusDxe/XenHypercall.c
 create mode 100644 OvmfPkg/XenbusDxe/XenHypercall.h
 create mode 100644 OvmfPkg/XenbusDxe/XenbusDxe.c
 create mode 100644 OvmfPkg/XenbusDxe/XenbusDxe.h
 create mode 100644 OvmfPkg/XenbusDxe/XenbusDxe.inf
 create mode 100644 OvmfPkg/XenbusDxe/Xenstore.c
 create mode 100644 OvmfPkg/XenbusDxe/Xenstore.h

-- 
Anthony PERARD


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