Revision: 17396
http://sourceforge.net/p/edk2/code/17396
Author: lzeng14
Date: 2015-05-11 03:32:48 +0000 (Mon, 11 May 2015)
Log Message:
-----------
MdePkg: Add RO memory and resource HOB attribute definitions.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <[email protected]>
Reviewed-by: Liming Gao <[email protected]>
Modified Paths:
--------------
trunk/edk2/MdePkg/Include/Pi/PiHob.h
trunk/edk2/MdePkg/Include/Uefi/UefiSpec.h
Modified: trunk/edk2/MdePkg/Include/Pi/PiHob.h
===================================================================
--- trunk/edk2/MdePkg/Include/Pi/PiHob.h 2015-05-11 03:12:51 UTC (rev
17395)
+++ trunk/edk2/MdePkg/Include/Pi/PiHob.h 2015-05-11 03:32:48 UTC (rev
17396)
@@ -255,6 +255,13 @@
#define EFI_RESOURCE_ATTRIBUTE_INITIALIZED 0x00000002
#define EFI_RESOURCE_ATTRIBUTE_TESTED 0x00000004
#define EFI_RESOURCE_ATTRIBUTE_READ_PROTECTED 0x00000080
+//
+// This is typically used as memory cacheability attribute today.
+// NOTE: Since PI spec 1.4, please use
EFI_RESOURCE_ATTRIBUTE_READ_ONLY_PROTECTED
+// as Physical write protected attribute, and
EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTED
+// means Memory cacheability attribute: The memory supports being programmed
with
+// a writeprotected cacheable attribute.
+//
#define EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTED 0x00000100
#define EFI_RESOURCE_ATTRIBUTE_EXECUTION_PROTECTED 0x00000200
#define EFI_RESOURCE_ATTRIBUTE_PERSISTENT 0x00800000
@@ -274,10 +281,20 @@
#define EFI_RESOURCE_ATTRIBUTE_64_BIT_IO 0x00010000
#define EFI_RESOURCE_ATTRIBUTE_UNCACHED_EXPORTED 0x00020000
#define EFI_RESOURCE_ATTRIBUTE_READ_PROTECTABLE 0x00100000
+//
+// This is typically used as memory cacheability attribute today.
+// NOTE: Since PI spec 1.4, please use
EFI_RESOURCE_ATTRIBUTE_READ_ONLY_PROTECTABLE
+// as Memory capability attribute: The memory supports being protected from
processor
+// writes, and EFI_RESOURCE_ATTRIBUTE_WRITE_PROTEC TABLE means Memory
cacheability attribute:
+// The memory supports being programmed with a writeprotected cacheable
attribute.
+//
#define EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTABLE 0x00200000
#define EFI_RESOURCE_ATTRIBUTE_EXECUTION_PROTECTABLE 0x00400000
#define EFI_RESOURCE_ATTRIBUTE_PERSISTABLE 0x01000000
+#define EFI_RESOURCE_ATTRIBUTE_READ_ONLY_PROTECTED 0x00040000
+#define EFI_RESOURCE_ATTRIBUTE_READ_ONLY_PROTECTABLE 0x00800000
+
///
/// Describes the resource properties of all fixed,
/// nonrelocatable resource ranges found on the processor
Modified: trunk/edk2/MdePkg/Include/Uefi/UefiSpec.h
===================================================================
--- trunk/edk2/MdePkg/Include/Uefi/UefiSpec.h 2015-05-11 03:12:51 UTC (rev
17395)
+++ trunk/edk2/MdePkg/Include/Uefi/UefiSpec.h 2015-05-11 03:32:48 UTC (rev
17396)
@@ -71,9 +71,13 @@
//
// Physical memory protection attributes
//
+// Note: UEFI spec 2.5 and following: use EFI_MEMORY_RO as write-protected
physical memory
+// protection attribute. Also, EFI_MEMORY_WP means cacheability attribute.
+//
#define EFI_MEMORY_WP 0x0000000000001000ULL
#define EFI_MEMORY_RP 0x0000000000002000ULL
#define EFI_MEMORY_XP 0x0000000000004000ULL
+#define EFI_MEMORY_RO 0x0000000000020000ULL
//
// Physical memory persistence attribute.
// The memory region supports byte-addressable non-volatility.
------------------------------------------------------------------------------
One dashboard for servers and applications across Physical-Virtual-Cloud
Widest out-of-the-box monitoring support with 50+ applications
Performance metrics, stats and reports that give you Actionable Insights
Deep dive visibility with transaction tracing using APM Insight.
http://ad.doubleclick.net/ddm/clk/290420510;117567292;y
_______________________________________________
edk2-commits mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/edk2-commits
