Add a simple protocol that enables the use of the unaccepted memory type. Must be called before ExitBootServices to be effective.
Cc: Gerd Hoffmann <kra...@redhat.com> Cc: James Bottomley <j...@linux.ibm.com> Cc: Jiewen Yao <jiewen....@intel.com> Cc: Tom Lendacky <thomas.lenda...@amd.com> Cc: Ard Biesheuvel <a...@kernel.org> Signed-off-by: Dionna Glaze <dionnagl...@google.com> --- MdeModulePkg/Core/Dxe/DxeMain.h | 22 ++++++++++++ MdeModulePkg/Core/Dxe/DxeMain.inf | 3 +- MdeModulePkg/Core/Dxe/DxeMain/DxeMain.c | 5 +++ MdeModulePkg/Core/Dxe/Mem/Page.c | 35 ++++++++++++++++++++ MdeModulePkg/MdeModulePkg.dec | 3 ++ 5 files changed, 67 insertions(+), 1 deletion(-) diff --git a/MdeModulePkg/Core/Dxe/DxeMain.h b/MdeModulePkg/Core/Dxe/DxeMain.h index ac943c87a3..5f0114b04f 100644 --- a/MdeModulePkg/Core/Dxe/DxeMain.h +++ b/MdeModulePkg/Core/Dxe/DxeMain.h @@ -2708,6 +2708,28 @@ CoreResolveUnacceptedMemory ( VOID ); + +typedef struct _ENABLE_UNACCEPTED_MEMORY_PROTOCOL + ENABLE_UNACCEPTED_MEMORY_PROTOCOL; + +typedef EFI_STATUS (EFIAPI *ENABLE_UNACCEPTED_MEMORY)( + IN ENABLE_UNACCEPTED_MEMORY_PROTOCOL * + ); + +struct _ENABLE_UNACCEPTED_MEMORY_PROTOCOL { + ENABLE_UNACCEPTED_MEMORY Enable; +}; + +extern EFI_GUID gEnableUnacceptedMemoryProtocolGuid; + +/** + Implement the protocol for enabling unaccepted memory. + **/ +VOID +InstallEnableUnacceptedMemoryProtocol ( + VOID + ); + /** Install MemoryAttributesTable on memory allocation. diff --git a/MdeModulePkg/Core/Dxe/DxeMain.inf b/MdeModulePkg/Core/Dxe/DxeMain.inf index deb8bb2ba8..39dcac98bb 100644 --- a/MdeModulePkg/Core/Dxe/DxeMain.inf +++ b/MdeModulePkg/Core/Dxe/DxeMain.inf @@ -122,6 +122,7 @@ gEfiMemoryAttributesTableGuid ## SOMETIMES_PRODUCES ## SystemTable gEfiEndOfDxeEventGroupGuid ## SOMETIMES_CONSUMES ## Event gEfiHobMemoryAllocStackGuid ## SOMETIMES_CONSUMES ## SystemTable + gEnableUnacceptedMemoryProtocolGuid ## PRODUCES ## GUID # Install protocol [Ppis] gEfiVectorHandoffInfoPpiGuid ## UNDEFINED # HOB @@ -187,7 +188,7 @@ gEfiMdeModulePkgTokenSpaceGuid.PcdHeapGuardPropertyMask ## CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdCpuStackGuard ## CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdFwVolDxeMaxEncapsulationDepth ## CONSUMES - gEfiMdeModulePkgTokenSpaceGuid.PcdEnableUnacceptedMemory ## CONSUMES + gEfiMdeModulePkgTokenSpaceGuid.PcdEnableUnacceptedMemory ## CONSUMES ## SOMETIMES_PRODUCES # [Hob] # RESOURCE_DESCRIPTOR ## CONSUMES diff --git a/MdeModulePkg/Core/Dxe/DxeMain/DxeMain.c b/MdeModulePkg/Core/Dxe/DxeMain/DxeMain.c index 8d1de32fe7..bc1a8ab6b2 100644 --- a/MdeModulePkg/Core/Dxe/DxeMain/DxeMain.c +++ b/MdeModulePkg/Core/Dxe/DxeMain/DxeMain.c @@ -354,6 +354,11 @@ DxeMain ( Status = CoreInstallConfigurationTable (&gEfiMemoryTypeInformationGuid, &gMemoryTypeInformation); ASSERT_EFI_ERROR (Status); + // + // Install unaccepted memory configuration protocol + // + InstallEnableUnacceptedMemoryProtocol(); + // // If Loading modules At fixed address feature is enabled, install Load moduels at fixed address // Configuration Table so that user could easily to retrieve the top address to load Dxe and PEI diff --git a/MdeModulePkg/Core/Dxe/Mem/Page.c b/MdeModulePkg/Core/Dxe/Mem/Page.c index cbebe62a28..10e152d80d 100644 --- a/MdeModulePkg/Core/Dxe/Mem/Page.c +++ b/MdeModulePkg/Core/Dxe/Mem/Page.c @@ -96,6 +96,14 @@ EFI_MEMORY_TYPE_INFORMATION gMemoryTypeInformation[EfiMaxMemoryType + 1] = { // GLOBAL_REMOVE_IF_UNREFERENCED BOOLEAN gLoadFixedAddressCodeMemoryReady = FALSE; +EFI_STATUS EFIAPI CoreEnableUnacceptedMemory(IN ENABLE_UNACCEPTED_MEMORY_PROTOCOL *); + +struct { + ENABLE_UNACCEPTED_MEMORY enable; +} mEnableUnacceptedMemoryProtocol = { + CoreEnableUnacceptedMemory, +}; + /** Enter critical section by gaining lock on gMemoryLock. @@ -2205,6 +2213,33 @@ CoreResolveUnacceptedMemory ( return AcceptAllUnacceptedMemory(AcceptMemory); } +EFI_STATUS +EFIAPI +CoreEnableUnacceptedMemory ( + IN ENABLE_UNACCEPTED_MEMORY_PROTOCOL *This + ) +{ + return PcdSetBoolS(PcdEnableUnacceptedMemory, TRUE); +} + +VOID +InstallEnableUnacceptedMemoryProtocol ( + VOID + ) +{ + EFI_HANDLE Handle; + EFI_STATUS Status; + + Handle = NULL; + Status = CoreInstallMultipleProtocolInterfaces ( + &Handle, + &gEnableUnacceptedMemoryProtocolGuid, + &mEnableUnacceptedMemoryProtocol, + NULL + ); + ASSERT_EFI_ERROR (Status); +} + /** Make sure the memory map is following all the construction rules, it is the last time to check memory map error before exit boot services. diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec index dd07b3725a..ce72c06a93 100644 --- a/MdeModulePkg/MdeModulePkg.dec +++ b/MdeModulePkg/MdeModulePkg.dec @@ -244,6 +244,9 @@ gEdkiiPerformanceMeasurementProtocolGuid = { 0xc85d06be, 0x5f75, 0x48ce, { 0xa8, 0x0f, 0x12, 0x36, 0xba, 0x3b, 0x87, 0xb1 } } gEdkiiSmmPerformanceMeasurementProtocolGuid = { 0xd56b6d73, 0x1a7b, 0x4015, { 0x9b, 0xb4, 0x7b, 0x07, 0x17, 0x29, 0xed, 0x24 } } + ## Bootloader protocol Guid for enabling unaccepted memory support. + gEnableUnacceptedMemoryProtocolGuid = { 0xc5a010fe, 0x38a7, 0x4531, { 0x8a, 0x4a, 0x05, 0x00, 0xd2, 0xfd, 0x16, 0x49 } } + ## Guid is defined for CRC32 encapsulation scheme. # Include/Guid/Crc32GuidedSectionExtraction.h gEfiCrc32GuidedSectionExtractionGuid = { 0xFC1BCDB0, 0x7D31, 0x49aa, {0x93, 0x6A, 0xA4, 0x60, 0x0D, 0x9D, 0xD0, 0x83 } } -- 2.37.3.998.g577e59143f-goog -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. 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