Needs two little tweaks in PCI code because microvm supports mmio only.
Other than that just wire up the existing code (the PCIe host adapter
used by microvm is the same (virtual) hardware used by the arm/aarch64
virtual machines).

v7:
- allow non-existing io address space only in case
there are no io reservations (Mateusz Albecki)

v6:
- codestyle fix (Abner Chang).

v5:
- codestyle (uncrustify) fix.

v4:
- update PciHostBridge check (Abner Chang).

v3:
- rebase to latest master, adapt to PlatformInitLib.
- rework PhysMemAddressWidth handling for microvm.

v2:
- rebase to latest master
- pick up review tags

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3777

Gerd Hoffmann (6):
MdeModulePkg/PciHostBridge: io range is not mandatory

OvmfPkg/FdtPciHostBridgeLib: io range is not mandatory
OvmfPkg/Platform: unfix PcdPciExpressBaseAddress
OvmfPkg/Microvm/pcie: no vbeshim please
OvmfPkg/Microvm/pcie: mPhysMemAddressWidth tweak
OvmfPkg/Microvm/pcie: add pcie support

OvmfPkg/Microvm/MicrovmX64.dsc | 40 ++++++++++-------
.../PlatformInitLib/PlatformInitLib.inf | 4 +-
OvmfPkg/PlatformPei/PlatformPei.inf | 2 +-
.../Bus/Pci/PciHostBridgeDxe/PciHostBridge.c | 6 +++
.../FdtPciHostBridgeLib/FdtPciHostBridgeLib.c | 45 ++++++++++---------
OvmfPkg/Library/PlatformInitLib/MemDetect.c | 45 ++++++++++++++++++-
OvmfPkg/Library/PlatformInitLib/Platform.c | 4 +-
OvmfPkg/PlatformPei/Platform.c | 2 +-
OvmfPkg/QemuVideoDxe/VbeShim.c | 2 +
OvmfPkg/Microvm/README | 2 +-
10 files changed, 107 insertions(+), 45 deletions(-)

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2.36.1