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Clean up unused physical-to-virtual conversion routines
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This commit is contained in:
Aiken Harris
2026-01-12 19:40:27 +01:00
parent 032cab7f2f
commit 34c33a3b53
3 changed files with 0 additions and 108 deletions
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102
boot/xtldr/memory.cc
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@@ -638,105 +638,3 @@ Memory::MapVirtualMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
/* Return success */
return STATUS_EFI_SUCCESS;
}
/**
* Converts physical address to virtual address based on physical base and virtual base.
*
* @param PhysicalAddress
* Specifies physical address that will be converted to virtual address.
*
* @param PhysicalBase
* Supplies a physical base address.
*
* @param VirtualBase
* Supplies a virtual base address.
*
* @return This routine returns a mapped virtual address.
*
* @since XT 1.0
*/
XTCDECL
PVOID
Memory::PhysicalAddressToVirtual(IN PVOID PhysicalAddress,
IN PVOID PhysicalBase,
IN PVOID VirtualBase)
{
/* Convert physical address to virtual address */
return (PUCHAR)VirtualBase + ((PUCHAR)PhysicalAddress - (PUCHAR)PhysicalBase);
}
/**
* Converts whole linked list addressing from physical to virtual for future use after enabling paging.
*
* @param PageMap
* Supplies a pointer to the page mapping structure.
*
* @param ListHead
* Supplies a pointer to a structure that serves as the list header.
*
* @param PhysicalBase
* Supplies a physical base address.
*
* @param VirtualBase
* Supplies a virtual base address.
*
* @return This routine returns a status code.
*
* @since XT 1.0
*/
XTCDECL
EFI_STATUS
Memory::PhysicalListToVirtual(IN PXTBL_PAGE_MAPPING PageMap,
IN OUT PLIST_ENTRY ListHead,
IN PVOID PhysicalBase,
IN PVOID VirtualBase)
{
PLIST_ENTRY ListEntry, NextEntry;
/* Make sure list is properly initialized */
if(ListHead->Flink == 0 || ListHead->Blink == 0)
{
/* List not initialized, return error code */
return STATUS_EFI_INVALID_PARAMETER;
}
/* Iterate through all elements */
ListEntry = ListHead->Flink;
while(ListEntry != ListHead)
{
/* Save physical address of the next element */
NextEntry = ListEntry->Flink;
/* Convert the address of this element to VirtualAddress */
if(ListEntry->Blink == ListHead)
{
/* Find virtual address of list head */
ListEntry->Blink = (PLIST_ENTRY)GetVirtualAddress(PageMap, ListEntry->Blink);
}
else
{
/* Convert list entry */
ListEntry->Blink = (PLIST_ENTRY)PhysicalAddressToVirtual(ListEntry->Blink, (PVOID)PhysicalBase, VirtualBase);
}
if(ListEntry->Flink == ListHead)
{
/* Convert list head */
ListEntry->Flink = ListHead->Flink->Blink;
}
else
{
/* Convert list entry */
ListEntry->Flink = (PLIST_ENTRY)PhysicalAddressToVirtual(ListEntry->Flink, (PVOID)PhysicalBase, VirtualBase);
}
/* Get to the next element*/
ListEntry = NextEntry;
}
/* Convert list head */
ListHead->Blink = (PLIST_ENTRY)PhysicalAddressToVirtual(ListHead->Blink, (PVOID)PhysicalBase, VirtualBase);
ListHead->Flink = (PLIST_ENTRY)PhysicalAddressToVirtual(ListHead->Flink, (PVOID)PhysicalBase, VirtualBase);
/* Return success */
return STATUS_EFI_SUCCESS;
}