[PATCH V1 0/3] Reserve shared memory for DMA operation

["Min Xu" <min.m.xu@intel.com>]

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4171

This patch-set introduces the feature of reserving shared memory
for DMA operation. Its intention is to reduce the allocation and
conversion of private/shared memory, so that boot performance
can be improved significantly. Detailed information is in Patch#1.

Patch#2 renames AmdSevIoMmu.* to CcIoMmu.* because these 2 files
support both SEV and TDX guest.

Patch#3 updates the related section in Maintainers.txt.

Code: https://github.com/mxu9/edk2/tree/IoMmu.v1

Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Min Xu <min.m.xu@intel.com>

Min M Xu (3):
  OvmfPkg/IoMmuDxe: Reserve shared memory region for DMA operation
  OvmfPkg/IoMmuDxe: Rename AmdSevIoMmu to CcIoMmu
  Maintainers: Update OvmfPkg/IoMmuDxe

 Maintainers.txt                               |   2 +-
 OvmfPkg/IoMmuDxe/{AmdSevIoMmu.c => CcIoMmu.c} | 144 +++---
 OvmfPkg/IoMmuDxe/{AmdSevIoMmu.h => CcIoMmu.h} |   0
 OvmfPkg/IoMmuDxe/IoMmuBuffer.c                | 425 ++++++++++++++++++
 OvmfPkg/IoMmuDxe/IoMmuDxe.c                   |   2 +-
 OvmfPkg/IoMmuDxe/IoMmuDxe.inf                 |   6 +-
 OvmfPkg/IoMmuDxe/IoMmuInternal.h              | 179 ++++++++
 7 files changed, 681 insertions(+), 77 deletions(-)
 rename OvmfPkg/IoMmuDxe/{AmdSevIoMmu.c => CcIoMmu.c} (88%)
 rename OvmfPkg/IoMmuDxe/{AmdSevIoMmu.h => CcIoMmu.h} (100%)
 create mode 100644 OvmfPkg/IoMmuDxe/IoMmuBuffer.c
 create mode 100644 OvmfPkg/IoMmuDxe/IoMmuInternal.h

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2.29.2.windows.2