Yes, please re-send the patch once there is any update.

And please CC the package maintainers when you send patches to edk2 devel list follow EDK2 process.

 

Thanks,

Guo

 

From: Sean Rhodes <sean@...>
Sent: Saturday, January 29, 2022 1:47 AM
To: Dong, Guo <guo.dong@...>; devel@edk2.groups.io
Subject: Re: [edk2-devel] [PATCH 32/32] UefiPayloadPkg: Add build option for Above 4G Memory

 

Thanks :)

I've updated the PR. Do I need to resend the new patch again?

[PATCH 33/33] UefiPayloadPkg: Add build option for Above 4G Memory

 

When build option ABOVE_4G_MEMORY is set to true, nothing will change

and EDKII will use all available memory.

 

Setting it to false will create memory type information HOB in

payload entry, so that EDKII will reserve enough memory below 4G

for EDKII modules. This option is useful for bootloaders that are not

fully 64-bit aware such as Qubes R4.0.4 bootloader, Zorin and Proxmox.

 

Signed-off-by: Sean Rhodes <sean@...>

---

 .../UefiPayloadEntry/UefiPayloadEntry.c       | 41 +++++++++++++++++++

 .../UefiPayloadEntry/UefiPayloadEntry.inf     |  7 ++++

 UefiPayloadPkg/UefiPayloadPkg.dec             |  3 ++

 UefiPayloadPkg/UefiPayloadPkg.dsc             |  3 ++

 4 files changed, 54 insertions(+)

 

diff --git a/UefiPayloadPkg/UefiPayloadEntry/UefiPayloadEntry.c b/UefiPayloadPkg/UefiPayloadEntry/UefiPayloadEntry.c

index 0fed1e3691..d5c18dc343 100644

--- a/UefiPayloadPkg/UefiPayloadEntry/UefiPayloadEntry.c

+++ b/UefiPayloadPkg/UefiPayloadEntry/UefiPayloadEntry.c

@@ -5,10 +5,46 @@

 

 **/

 

+#include <Guid/MemoryTypeInformation.h>

 #include "UefiPayloadEntry.h"

 

 STATIC UINT32  mTopOfLowerUsableDram = 0;

 

+/**

+   Function to reserve memory below 4GB for EDKII Modules.

+

+   This causes the DXE to dispatch everything under 4GB and allows Operating

+   System's that require EFI_LOADED_IMAGE to be under 4GB to start.

+   e.g. Xen hypervisor used in Qubes

+

+   @param  None

+

+  @retval None

+**/

+VOID

+ForceModulesBelow4G (

+  VOID

+  )

+{

+  DEBUG ((DEBUG_INFO, "Building hob to restrict memory resorces to below 4G.\n"));

+  EFI_MEMORY_TYPE_INFORMATION mDefaultMemoryTypeInformation[] = {

+    { EfiACPIReclaimMemory,   FixedPcdGet32 (PcdMemoryTypeEfiACPIReclaimMemory) },

+    { EfiACPIMemoryNVS,       FixedPcdGet32 (PcdMemoryTypeEfiACPIMemoryNVS) },

+    { EfiReservedMemoryType,  FixedPcdGet32 (PcdMemoryTypeEfiReservedMemoryType) },

+    { EfiRuntimeServicesData, FixedPcdGet32 (PcdMemoryTypeEfiRuntimeServicesData) },

+    { EfiRuntimeServicesCode, FixedPcdGet32 (PcdMemoryTypeEfiRuntimeServicesCode) },

+    { EfiMaxMemoryType,       0     }

+  };

+  //

+  // Create Memory Type Information HOB

+  //

+  BuildGuidDataHob (

+    &gEfiMemoryTypeInformationGuid,

+    mDefaultMemoryTypeInformation,

+    sizeof(mDefaultMemoryTypeInformation)

+  );

+}

+

 /**

    Callback function to build resource descriptor HOB

 

@@ -438,6 +474,11 @@ _ModuleEntryPoint (

   // Build other HOBs required by DXE

   BuildGenericHob ();

 

+  // Create a HOB to make resources for EDKII modules below 4G

+  if (!FixedPcdGetBool (PcdAbove4GMemory) ) {

+    ForceModulesBelow4G ();

+  }

+

   // Load the DXE Core

   Status = LoadDxeCore (&DxeCoreEntryPoint);

   ASSERT_EFI_ERROR (Status);

diff --git a/UefiPayloadPkg/UefiPayloadEntry/UefiPayloadEntry.inf b/UefiPayloadPkg/UefiPayloadEntry/UefiPayloadEntry.inf

index 1847d6481a..2ca47e3bb5 100644

--- a/UefiPayloadPkg/UefiPayloadEntry/UefiPayloadEntry.inf

+++ b/UefiPayloadPkg/UefiPayloadEntry/UefiPayloadEntry.inf

@@ -86,8 +86,15 @@

   gUefiPayloadPkgTokenSpaceGuid.PcdPayloadFdMemSize

   gUefiPayloadPkgTokenSpaceGuid.PcdBootloaderParameter

   gUefiPayloadPkgTokenSpaceGuid.PcdSystemMemoryUefiRegionSize

+  gUefiPayloadPkgTokenSpaceGuid.PcdMemoryTypeEfiACPIMemoryNVS

+  gUefiPayloadPkgTokenSpaceGuid.PcdMemoryTypeEfiACPIReclaimMemory

+  gUefiPayloadPkgTokenSpaceGuid.PcdMemoryTypeEfiReservedMemoryType

+  gUefiPayloadPkgTokenSpaceGuid.PcdMemoryTypeEfiRuntimeServicesData

+  gUefiPayloadPkgTokenSpaceGuid.PcdMemoryTypeEfiRuntimeServicesCode

 

   gEfiMdeModulePkgTokenSpaceGuid.PcdSetNxForStack               ## SOMETIMES_CONSUMES

   gEfiMdeModulePkgTokenSpaceGuid.PcdDxeNxMemoryProtectionPolicy ## SOMETIMES_CONSUMES

   gEfiMdeModulePkgTokenSpaceGuid.PcdImageProtectionPolicy       ## SOMETIMES_CONSUMES

 

+  gUefiPayloadPkgTokenSpaceGuid.PcdAbove4GMemory

+

diff --git a/UefiPayloadPkg/UefiPayloadPkg.dec b/UefiPayloadPkg/UefiPayloadPkg.dec

index 551f0a4915..653a52b5a7 100644

--- a/UefiPayloadPkg/UefiPayloadPkg.dec

+++ b/UefiPayloadPkg/UefiPayloadPkg.dec

@@ -83,6 +83,9 @@ gUefiPayloadPkgTokenSpaceGuid.PcdSystemMemoryUefiRegionSize|0x04000000|UINT32|0x

 

 gUefiPayloadPkgTokenSpaceGuid.PcdPcdDriverFile|{ 0x57, 0x72, 0xcf, 0x80, 0xab, 0x87, 0xf9, 0x47, 0xa3, 0xfe, 0xD5, 0x0B, 0x76, 0xd8, 0x95, 0x41 }|VOID*|0x00000018

 

+# Above 4G Memory

+gUefiPayloadPkgTokenSpaceGuid.PcdAbove4GMemory|TRUE|BOOLEAN|0x00000019

+

 ## FFS filename to find the default variable initial data file.

 # @Prompt FFS Name of variable initial data file

  gUefiPayloadPkgTokenSpaceGuid.PcdNvsDataFile |{ 0x1a, 0xf1, 0xb1, 0xae, 0x42, 0xcc, 0xcf, 0x4e, 0xac, 0x60, 0xdb, 0xab, 0xf6, 0xca, 0x69, 0xe6 }|VOID*|0x00000025

diff --git a/UefiPayloadPkg/UefiPayloadPkg.dsc b/UefiPayloadPkg/UefiPayloadPkg.dsc

index 1ce96a51c1..dad14be343 100644

--- a/UefiPayloadPkg/UefiPayloadPkg.dsc

+++ b/UefiPayloadPkg/UefiPayloadPkg.dsc

@@ -33,6 +33,7 @@

   DEFINE UNIVERSAL_PAYLOAD            = FALSE

   DEFINE SECURITY_STUB_ENABLE         = TRUE

   DEFINE SMM_SUPPORT                  = FALSE

+  DEFINE ABOVE_4G_MEMORY              = TRUE

   #

   # SBL:      UEFI payload for Slim Bootloader

   # COREBOOT: UEFI payload for coreboot

@@ -399,6 +400,8 @@

   gEfiMdePkgTokenSpaceGuid.PcdPerformanceLibraryPropertyMask       | 0x1

 !endif

 

+  gUefiPayloadPkgTokenSpaceGuid.PcdAbove4GMemory|$(ABOVE_4G_MEMORY)

+

 [PcdsPatchableInModule.X64]

   gPcAtChipsetPkgTokenSpaceGuid.PcdRtcIndexRegister|$(RTC_INDEX_REGISTER)

   gPcAtChipsetPkgTokenSpaceGuid.PcdRtcTargetRegister|$(RTC_TARGET_REGISTER)

-- 

2.32.0