tyler.durden/audk
1
0
Fork 0
mirror of https://github.com/acidanthera/audk.git synced 2025-04-08 17:05:09 +02:00
Code Issues Packages Projects Releases Wiki Activity

EmulatorPkg/WinHost: pre-allocate "physical" RAM

Browse Source 
Move the "physical" RAM allocation from WinPeiAutoScan
to main() entrypoint.

This is to prepare the changes for "reset" support.

Signed-off-by: Ray Ni <ray.ni@intel.com>
Cc: Andrew Fish <afish@apple.com>
Reviewed-by: Zhiguang Liu <zhiguang.liu@intel.com>
This commit is contained in:
Ni, Ray 2022-11-12 12:00:40 +08:00 committed by mergify[bot]
parent 735a7496cb
commit d2842bb6ec
1 changed files with 25 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
EmulatorPkg/Win/Host/WinHost.c
View File

@ -8,7 +8,7 @@
This code produces 128 K of temporary memory for the SEC stack by directly
allocate memory space with ReadWrite and Execute attribute.
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2022, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2016-2020 Hewlett Packard Enterprise Development LP<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@ -87,14 +87,6 @@ WinPeiAutoScan (
return EFI_UNSUPPORTED;
}
//
// Allocate enough memory space for emulator
//
gSystemMemory[Index].Memory = (EFI_PHYSICAL_ADDRESS)(UINTN)VirtualAlloc (NULL, (SIZE_T)(gSystemMemory[Index].Size), MEM_COMMIT, PAGE_EXECUTE_READWRITE);
if (gSystemMemory[Index].Memory == 0) {
return EFI_OUT_OF_RESOURCES;
}
*MemoryBase = gSystemMemory[Index].Memory;
*MemorySize = gSystemMemory[Index].Size;
@ -457,6 +449,30 @@ Returns:
exit (1);
}
//
// Allocate "physical" memory space for emulator. It will be reported out later throuth MemoryAutoScan()
//
for (Index = 0, Done = FALSE; !Done; Index++) {
ASSERT (Index < gSystemMemoryCount);
gSystemMemory[Index].Size = ((UINT64)_wtoi (MemorySizeStr)) * ((UINT64)SIZE_1MB);
gSystemMemory[Index].Memory = (EFI_PHYSICAL_ADDRESS)(UINTN)VirtualAlloc (NULL, (SIZE_T)(gSystemMemory[Index].Size), MEM_COMMIT, PAGE_EXECUTE_READWRITE);
if (gSystemMemory[Index].Memory == 0) {
return EFI_OUT_OF_RESOURCES;
}
//
// Find the next region
//
for (Index1 = 0; MemorySizeStr[Index1] != '!' && MemorySizeStr[Index1] != 0; Index1++) {
}
if (MemorySizeStr[Index1] == 0) {
Done = TRUE;
}
MemorySizeStr = MemorySizeStr + Index1 + 1;
}
//
// Allocate space for gSystemMemory Array
//
@ -575,32 +591,6 @@ Returns:
SecPrint ("\n\r");
}
//
// Calculate memory regions and store the information in the gSystemMemory
// global for later use. The autosizing code will use this data to
// map this memory into the SEC process memory space.
//
for (Index = 0, Done = FALSE; !Done; Index++) {
//
// Save the size of the memory and make a Unicode filename SystemMemory00, ...
//
gSystemMemory[Index].Size = ((UINT64)_wtoi (MemorySizeStr)) * ((UINT64)SIZE_1MB);
//
// Find the next region
//
for (Index1 = 0; MemorySizeStr[Index1] != '!' && MemorySizeStr[Index1] != 0; Index1++) {
}
if (MemorySizeStr[Index1] == 0) {
Done = TRUE;
}
MemorySizeStr = MemorySizeStr + Index1 + 1;
}
SecPrint ("\n\r");
//
// Hand off to SEC Core
//