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Diffstat (limited to 'Silicon/Intel/PurleySktPkg/Include/Guid/PartialMirrorGuid.h')
| -rw-r--r-- | Silicon/Intel/PurleySktPkg/Include/Guid/PartialMirrorGuid.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/Silicon/Intel/PurleySktPkg/Include/Guid/PartialMirrorGuid.h b/Silicon/Intel/PurleySktPkg/Include/Guid/PartialMirrorGuid.h new file mode 100644 index 0000000000..d8e770fba6 --- /dev/null +++ b/Silicon/Intel/PurleySktPkg/Include/Guid/PartialMirrorGuid.h @@ -0,0 +1,65 @@ +/** @file + +Copyright (c) 2018, Intel Corporation. All rights reserved.<BR> +This program and the accompanying materials are licensed and made available under +the terms and conditions of the BSD License that accompanies this distribution. +The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php. + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#ifndef _PARTIAL_MIRROR_GUID_H_ +#define _PARTIAL_MIRROR_GUID_H_ + +#define ADDRESS_BASED_MIRROR_VARIABLE_GUID { 0x7b9be2e0, 0xe28a, 0x4197, 0xad, 0x3e, 0x32, 0xf0, 0x62, 0xf9, 0x46, 0x2c } + +#define ADDRESS_RANGE_MIRROR_VARIABLE_CURRENT L"MirrorCurrent" +#define ADDRESS_RANGE_MIRROR_VARIABLE_REQUEST L"MirrorRequest" +#define ADDRESS_BASED_MIRROR_VARIABLE_SIZE sizeof(ADDRESS_RANGE_MIRROR_VARIABLE_DATA) +#define ADDRESS_BASED_MIRROR_VARIABLE_ATTRIBUTE (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS) +#define ADDRESS_RANGE_MIRROR_VARIABLE_VERSION 1 +#define MIRROR_STATUS_SUCCESS 0 +#define MIRROR_STATUS_MIRROR_INCAPABLE 1 +#define MIRROR_STATUS_VERSION_MISMATCH 2 +#define MIRROR_STATUS_INVALID_REQUEST 3 +#define MIRROR_STATUS_UNSUPPORTED_CONFIG 4 +#define MIRROR_STATUS_OEM_SPECIFIC_CONFIGURATION 5 + +extern EFI_GUID gAddressBasedMirrorGuid; + +#pragma pack(1) + +typedef struct { +// +// MirroredAmountAbove4GB is the amount of available memory above 4GB that needs to be mirrored +// measured in basis point (hundredths of percent e.g. 12% = 1275). +// In a multi-socket system, platform is required to distribute the mirrored memory ranges such that the +// amount mirrored is approximately proportional to the amount of memory on each NUMA node. E.g. on +// a two node machine with 64GB on node 0 and 32GB on node 1, a request for 12GB of mirrored memory +// should be allocated with 8GB of mirror on node 0 and 4GB on node 1. +// +// For example, if the total memory in the system is 48GB and 12GB of memory above the 4GB addresses needs to be mirrored then the amount would be: +// Total Memory = 48 GB +// Total Memory above 4GB = 44 GB +// Percentage = 8/44 * 100 = 18.18% = 1818 basis points +// Consider a 2S system with 32 GB of memory attached to socket 0 and 16GB on socket 1, +// then socket 0 should mirror 8 GB of memory and socket 1 mirror 4GB to maintain the requested 18%. +// This ensures that OS has an adequate amount of mirrored memory on each NUMA domain. +// + UINT8 MirrorVersion; + BOOLEAN MirrorMemoryBelow4GB; + UINT16 MirroredAmountAbove4GB; + UINT8 MirrorStatus; +} ADDRESS_RANGE_MIRROR_VARIABLE_DATA; + +typedef struct { + ADDRESS_RANGE_MIRROR_VARIABLE_DATA MirrorCurrentType; + ADDRESS_RANGE_MIRROR_VARIABLE_DATA MirrorRequestType; +} RASMEMORYINFO; +#pragma pack() + + +#endif |