Hello All,
I faced an issue with my UEFI implementation (Armv8 64 bit platform).
I need to convert a device physical address to the virtual on
VirtualAddressChange event.
EfiConvertPointer always returns EFI_NOT_FOUND.
I tried to allocate just an address:
gBS->AllocatePages(AllocateAddress, EfiRuntimeServicesCode, 1,
&MyAddress); // Allocate one page
where MyAddress is 0x65042000.
Which also returns EFI_NOT_FOUND.
I declared this device's memory in the Platform memory lib as
// Mydevice
// 1MB @0x65000000 (0x65000000 - 0x650fffff)
MMUTable[++Index].PhysicalBase = MY_DEV_BASE;
MMUTable[Index].VirtualBase = MY_DEV_BASE;
MMUTable[Index].Length = MY_DEV_SZ; // SIZE_1MB
MMUTable[Index].Attributes =
ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
I can access this device perfectly from BootServices (read/write) with MMU
(1:1) on.
But it is nowhere in virtual table map which
AllocatePages()/EfiConvertPointer() eventually use.
Please let me know what I am missing here?
I have declared this memory as a Runtime with
Status = gDS->AddMemorySpace (
EfiGcdMemoryTypeMemoryMappedIo,
AlignedAddr, SIZE_64KB,
EFI_MEMORY_UC | EFI_MEMORY_RUNTIME
);
if (!EFI_ERROR (Status)) {
Status = gDS->SetMemorySpaceAttributes (
AlignedAddr,
SIZE_64KB,
EFI_MEMORY_UC | EFI_MEMORY_RUNTIME
);
}
Thank you,
Vladimir
_______________________________________________
edk2-devel mailing list
[email protected]
https://lists.01.org/mailman/listinfo/edk2-devel
