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
--
2.29.2.windows.2
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